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WikiDoc Infectious Disease Project — Pathogen-Based Infections
Pathogens of Public Health Significance
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3Pathogens of Clinical Significance
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3Bacteria – Gram-Positive Cocci
- Enterococcus faecalis
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- Enterococcus faecium
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- Staphylococcus aureus
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- Staphylococcus aureus
- 1. Infectious endocarditis
- 1.1 In adults
- Preferred regimen: Vancomycin, 15-20 mg/kg IV q8-12h OR Daptomycin 6mg/kg/dose IV qd
- 2. Intravascular catheter-related infections[1]
- 2.1 Methicillin susceptible Staphylococcus aureus (MSSA)
- Preferred regimen: Nafcillin 2 g IV q6h OR Oxacillin, 2 g IV q6h.
- Alternative regimen: Cefazolin, 2 g IV q8h OR Vancomycin, 15 mg/kg IV q12h.
- 2.1.1 Pediatric dose
- 2.1.1.1 Nafcillin
- 2.1.1.1.1 Neonates
- 0–4 weeks of age and 1200 g- 50 mg/kg/day q12h.
- ≤7 days and 1200–2000 g- 50 mg/kg/day q12h.
- >7 days of age and <2000g- 75 mg/kg/day q8h.
- >7 days of age and >1200 g - 100 mg/kg/day q6h.
- 2.1.1.1.2 Infants and children: Nafcillin 100–200 mg/kg/day q4–6h.
- 2.1.1.2 Oxacillin
- 2.1.1.2.1 Neonates
- 0–4 weeks of age and 1200 g - 50 mg/kg/day q12h.
- Postnatal age <7 days and 1200–2000 g- 50–100 mg/kg/day q12h.
- Postnatal age <7 days and >2000 g, 75–150 mg/kg/day q8h.
- Postnatal age ≥7 days and 1200–2000 g- 75–150 mg/kg/day q8h.
- Postnatal age ≥7 days and >2000 g, 100–200 mg/kg/day q6h.
- 2.1.1.3 Cefazolin
- 2.1.1.3.1 Neonates
- Postnatal age ≤7 days: 40 mg/kg/day q12h.
- Postnatal age >7 days and 2000 g: 40 mg/kg/day q12h.
- Postnatal age >7 days and 12000 g: 60 mg/kg/day q8h.
- 2.1.1.3.2 Infants and children: 50 mg/kg/day q8h.
- 2.1.1.4 Vancomycin
- 2.1.1.4.1 Neonates
- Postnatal age ≤7 days and <1200 g, 15 mg/kg/day q24h.
- Postnatal age ≤7 days and 1200–2000 g, 10–15 mg/kg q12–18h.
- Postnatal age ≤7 days and >2000 g, 10–15 mg/kg q8–12h.
- Postnatal age >7 days and <1200 g, 15 mg/kg/day q24h.
- Postnatal age >7 days and 1200–2000 g, 10–15 mg/kg q8–12h.
- Postnatal age >7 days and >2000 g, 15–20 mg/kg q8h.
- 2.1.1.4.2 Infants and children: 40 mg/kg/day q6–8h.
- 2.2 Methicillin resistant Staphylococcus aureus (MRSA)
- Preferred regimen: Vancomycin, 15 mg/kg IV q12h OR Daptomycin, 6–8 mg/kg per day IV, or Linezolid 10 mg/kg q 12 hr IV or PO ; OR Vancomycin 15 mg/kg IV q12h AND (Rifampicin IV or Gentamycin IV); or Trimethoprim-Sulfamethoxazole 6–12 mg TMP/kg/day in divided doses q12h alone (if susceptible).
- 2.2.1 Pediatric dose
- 2.2.1.1 Linezolid 10 mg/kg IV or PO q12h
- 2.2.1.1.1 Neonates
- 0–4 weeks of age and birthweight <1200 g: 10 mg/kg q8–12h (note: q12h in patients <34 weeks gestation and <1 week of age).
- <7 days of age and birthweight >1200 g, 10 mg/kg q8–12h (note: q12h in patients <34 weeks gestation and <1 week of age).
- 7 days and birthweight >1200 g, 10 mg/kg q8h.
- 2.2.1.1.2 Infants and children <12 years of age: 10 mg/kg q8h Children 12 years of age and adolescents: 10 mg/kg q12h.
- 2.2.1.2 Gentamycin
- 2.2.1.2.1 Neonates
- Premature neonates and <1000 g, 3.5 mg/kg q24h; 0–4 weeks and <1200 g, 2.5 mg/kg q18-24h.
- Postnatal age 7 days: 2.5 mg/kg q12h.
- Postnatal age 17 days and 1200–2000 g, 2.5 mg/kg q8-12h.
- Postnatal age 17 days and 12000 g, 2.5 mg/kg q8h.
- Once daily dosing for premature neonates with normal renal function, 3.5–4 mg/kg q24h.
- Once daily dosing for term neonates with normal renal function, 3.5–5 mg/kg q24h.
- 2.2.1.2.2 Infants and children <5 years of age: 2.5 mg/kg q8h; qd dosing in patients with normal renal function, 5–7.5 mg/kg q24h.
- 2.2.1.2.3 Children >5 years of age: 2–2.5 mg/kg q8h; qd s with normal renal function, 5–7.5 mg/kg every 24 h.
- 2.2.1.3 Trimethoprim-Sulfamethoxazole
- 2.2.1.3.1 Infants 12 months of age and children: mild-to-moderate infections, 6–12 mg TMP/kg/day q12h; serious infection, 15–20 mg TMP/kg/day q6-8h.
- 3. Cellulitis
- 3.1 Purulent cellulitis (defined as cellulitis associated with purulent drainage or exudate in the absence of a drainable abscess)
- 3.1.1 In adults
- Preferred regimen: Clindamycin 300–450 mg PO TID OR Trimethoprim-Sulfamethoxazole 1–2 DS tab PO BID OR Doxycycline 100 mg PO BID OR Minocycline 200 mg as a single dose, then 100 mg PO BID OR Linezolid 600 mg PO BID
- 3.1.2 In childern
- Preferred regimen: Clindamycin 10–13 mg/kg/dose PO q6–8 h, not to exceed 40 mg/kg/day OR Trimethoprim 4–6 mg/kg, Sulfamethoxazole 20–30 mg/kg PO q12h OR Doxycycline If patient body weight <45kg: 2 mg/kg/dose PO q12 h.
- Doxycycline If patient body weight 45kg: adult dose OR Minocycline 4 mg/kg PO 200 mg as a single dose, then 2 mg/kg/dose PO q12h OR Linezolid 10 mg/kg PO q8h, not to exceed 600 mg/dose
- 3.2 Nonpurulent cellulitis (defined as cellulitis with no purulent drainage or exudate and no associated abscess)
- 3.2.1 In adults
- Preferred regimen: Beta-lactam (eg, Cephalexin and Dicloxacillin) 500 mg PO QID OR Clindamycin 300–450 mg PO TID OR Amoxicillin 500 PO mg TID OR Linezolid 600 mg PO BID
- Note: Empirical therapy for b-hemolytic streptococci is recommended. Empirical coverage for CA-MRSA is recommended in patients who do not respond to b-lactam therapy and may be considered in those with systemic toxicity.
- Note: Provide coverage for both b-hemolytic streptococci and CA-MRSA b-lactam (eg, amoxicillin) and/or TMP-SMX or a tetracycline
- 3.2.2 In childern
- Preferred regimen: Clindamycin 10–13 mg/kg PO q6–8 h, not to exceed 40 mg/kg/day OR Trimethoprim 4–6 mg/kg, Sulfamethoxazole 20–30 mg/kg PO q12h OR Linezolid 10 mg/kg PO q8h, not to exceed 600 mg
- Note (1): Clindamycin causes Clostridium difficile–associated disease may occur more frequently, compared with other oral agents.
- Note (2): Trimethoprim-Sulfamethoxazole not recommended for women in the third trimester of pregnancy and for children ,2 months of age.
- Note (3): Tetracyclines are not recommended for children under 8 years of age and are pregnancy category D.
-
- 4.1 Methicillin-resistant Staphylococcus aureus (MRSA)
- 4.1.1 In adults
- Preferred regimen: Vancomycin 30–45 mg/kg/day IV q8–12h for 4–6 weeks
- Alternative regimen: Linezolid 600 mg PO/IV q12h for 4–6 weeks OR Trimethoprim-Sulfamethoxazole 5 mg/kg/dose PO/IV q8–12h for 4–6 weeks
- 4.1.2 In childern
- Preferred regimen: Vancomycin15 mg/kg/dose IV q6h OR Linezolid 10 mg/kg/dose PO/IV q8h
- Note: Consider the addition of Rifampin 600 mg qd OR 300–450 mg bid to Vancomycin.
- 4.2 Methicillin-susceptible Staphylococcus aureus (MSSA)
- Preferred regimen: Nafcillin 2 g IV q4h OR Oxacillin 2 g IV q4h
- Alternative regimen: Vancomycin 30–45 mg/kg/day IV q8–12h
-
- 5.1 Methicillin-resistant Staphylococcus aureus (MRSA)
- Preferred regimen: Vancomycin 30–45 mg/kg/day IV q8–12h AND/OR Rifampin 600 mg IV or PO q24h
- Note: Shunt removal is recommended, and it should not be replaced until cerebrospinal fluid cultures are repeatedly negative.
- 5.2 Methicillin-susceptible Staphylococcus aureus (MSSA)
-
- 6.1 Penicillin-susceptible Staphylococcus aureus or Streptococcus
- Preferred regimen: Penicillin G 4 MU IV q4h for 2–4 weeks, then PO to complete 6–8 weeks
- 6.2 Methicillin-susceptible Staphylococcus aureus or Streptococcus
- Preferred regimen: Cefazolin 2 g IV q8h for 2–4 weeks, then PO to complete 6–8 weeks OR Nafcillin 2 g IV q4h for 2–4 weeks, then PO to complete 6–8 weeks OR Oxacillin 2 g IV q4h for 2–4 weeks, then PO to complete 6–8 weeks
- Alternative regimen: Clindamycin 600 mg IV q6h for 2–4 weeks, then PO to complete 6–8 weeks
- 6.3 Methicillin-resistant Staphylococcus aureus (MRSA)
- 6.3.1 In adults
- Preferred regimen: Vancomycin loading dose 25–30 mg/kg IV followed by 15–20 mg/kg IV q8–12h for 2–4 weeks, then PO to complete 6–8 weeks
- Alternative regimen: Linezolid 600 mg PO or IV q12h for 4–6 weeks OR TMP-SMX 5 mg/kg PO or IV q8–12h for 4–6 weeks
- 6.3.2 Pediatric dose
- Preferred regimen: Vancomycin 15 mg/kg IV q6h OR Linezolid 10 mg/kg PO or IV q8h
- Note: Consider the addition of Rifampin 600 mg qd or 300–450 mg bid to Vancomycin in adult patients.
- 7. Bacterial meningitis
- 7.1 Methicillin susceptible Staphylococcus aureus (MSSA)
- Preferred regimen: Nafcillin 9–12 g/day IV q4h OR Oxacillin 9–12 g/day IV q4h
- Alternative regimen: Vancomycin 30–45 mg/kg/day IV q8–12h OR Meropenem 6 g/day IV q8h
- 7.2 Methicillin resistant Staphylococcus aureus (MRSA)
- Preferred regimen: Vancomycin 30–45 mg/kg/day IV q8–12h
- Alternative regimen: Trimethoprim-Sulfamethoxazole 10–20 mg/kg/day q6–12h OR Linezolid 600 mg IV q12h
- Note: Consider the addition of Rifampin 600 mg qd or 300–450 mg bid to Vancomycin in adult patients.
- 8. Septic thrombosis of cavernous or dural venous sinus[11]
- 8.1 Methicillin-resistant Staphylococcus aureus (MRSA)
- 8.1.1 In adults
- Preferred regimen: Vancomycin 15–20 mg/kg IV q8–12h for 4–6 weeks
- Alternative regimen: Linezolid 600 mg PO IV q12h for 4–6 weeks OR TMP-SMX 5 mg/kg/dose PO/IV q8–12h for 4–6 weeks
- 8.1.2 Pediatric dose
- Preferred regimen: Vancomycin 15 mg/kg IV q6h OR Linezolid 10 mg/kg PO or IV q8h
- Note (1): Surgical evaluation for incision and drainage of contiguous sites of infection or abscess is recommended whenever possible.
- Note (2): Consider the addition of Rifampin 600 mg qd or 300–450 mg bid to Vancomycin.
- 9. Subdural empyema
- 9.1 Methicillin-resistant Staphylococcus aureus (MRSA)[12]
- 9.1.1 In adults
- Preferred regimen: Vancomycin 30–45 mg/kg/day IV q8–12h for 4–6 weeks
- Alternative regimen: Linezolid 600 mg PO or IV q12h for 4–6 weeks OR TMP-SMX 5 mg/kg/dose PO/IV q8–12h for 4–6 weeks
- 9.1.2 In childern
- Preferred regimen: Vancomycin 15 mg/kg/dose IV q6h OR Linezolid 10 mg/kg/dose PO/IV q8h
- Note: Consider the addition of Rifampin 600 mg qd or 300–450 mg bid to Vancomycin.
- 10. Acute conjunctivitis [13]
- 10.1 Methicillin-resistant Staphylococcus aureus (MRSA)
- Preferred regimen: Vancomycin ointment 1% qid
- 11. Appendicitis
- 11.1 Health Care–Associated Complicated Intra-abdominal Infection [14]
- 11.1.1 Methicillin-resistant Staphylococcus aureus (MRSA)
- Preferred regimen: Vancomycin 15–20 mg/kg IV q8–12h
- 11.1.1 Methicillin-resistant Staphylococcus aureus (MRSA)
- 12. Diverticulitis
- 12.1 Health Care–Associated Complicated Intra-abdominal Infection [14]
- 12.1.1Methicillin-resistant Staphylococcus aureus (MRSA)
- Preferred regimen: Vancomycin 15–20 mg/kg IV q8–12h.
- 12.1.1Methicillin-resistant Staphylococcus aureus (MRSA)
- 13. Peritonitis secondary to bowel perforation, peritonitis secondary to ruptured appendix, peritonitis secondary to ruptured appendix, typhlitis
- 13.1 Health Care–Associated Complicated Intra-abdominal Infection [14]
- 13.1.1 Methicillin-resistant Staphylococcus aureus (MRSA)
- Preferred regimen: Vancomycin 15–20 mg/kg IV q8–12h
- 14. Cystic fibrosis [15]
- 14.1 Preferred Regimen (Adult)
- If methicillin sensitive staphylococcus aureus: Nafcillin 2 gm IV q4hs OR Oxacillin 2 gm IV q4hs
- If methicillin resistant staphylococcus aureus: Vancomycin 15-20 mg/kg IV q8-12h OR Linezolid 600 mg po/IV q12h
- 14.2 Preferred regimen (Pediatric)
- If methicillin sensitive staphylococcus aureus: Nafcillin 5 mg/kg q6h (Age >28 days) OR Oxacillin 75 mg/kg q6h (Age >28 days)]]
- If methicillin resistant staphylococcus aureus: Vancomycin 40 mg/kg q6-8h (Age >28 days) OR Linezolid 10 mg/kg po or IV q8h (up to age 12)
- 15. Bronchiectasis [16]
- 15.1 Preferred Regimen in adults
- 15.1.1 Recommended first-line treatment and length of treatment
- 15.1.1.1 Methicillin-susceptible Staphylococcus aureus (MSSA): Flucloxacillin 500 mg oral qds for 14 days
- 15.1.1.2 Methicillin-resistant Staphylococcus aureus (MRSA): Patient's body weight is <50 kg: Rifampicin 450 mg oral od AND Trimethoprim 200 mg oral bd for 14 days ; Patient's body weight is >50 kg: Rifampicin 600 mg oral od AND Trimethoprim 200 mg oral bd for 14 days
- 15.1.1.3 Methicillin-resistant Staphylococcus aureus (MRSA): Vancomycin 1 g IV bd (monitor serum levels and adjust dose accordingly) OR Teicoplanin 400 mg od for 14 days
- 15.1.2 Recommended second-line treatment and length of treatment
- 15.1.2.1 Methicillin-susceptible Staphylococcus aureus (MSSA): Clarithromycin 500 mg oral bd 14 days
- 15.1.2.2 Methicillin-resistant Staphylococcus aureus (MRSA): Patient's body weight is <50 kg: Rifampicin 450 mg oral od AND Doxycycline 200 mg oral od 14 days, Patient's body weight is >50 kg: Rifampicin 600 mg oral AND Doxycycline 200 mg oral od 14 days. Third-line: Linezolid 600 mg bd 14 days
- 15.1.2.3 Methicillin-resistant Staphylococcus aureus (MRSA): Linezolid 600 mg IV bd 14 days
- 15.2 Preferred Regimen in children
- 15.2.1 Recommended first-line treatment and length of treatment
- 15.2.1.1 Methicillin-susceptible Staphylococcus aureus (MSSA): Flucloxacillin
- 15.2.1.2 Methicillin-resistant Staphylococcus aureus (MRSA): Children (< 12 yr): Trimethoprim 4-6 mg/kg/24 hr divided q 12 hr PO Children (> 12 yr) : Trimethoprim 100-200 mg q 12 hr PO. Rifampicin 450 mg oral od : Rifampicin 600 mg oral od AND
- 15.2.1.3 Methicillin-resistant Staphylococcus aureus (MRSA): Vancomycin 45-60 mg/kg/24 hr divided q 8-12 hr IV OR Teicoplanin
- 15.2.2 Recommended second-line treatment and length of treatment
- 15.2.2.1 Methicillin-susceptible Staphylococcus aureus (MSSA): Clarithromycin 15 mg/kg/24 hr divided q 12 hr PO
- 15.2.2.2 Methicillin-resistant Staphylococcus aureus (MRSA): Rifampicin AND Doxycycline 2-5 mg/kg/24 hr divided q 12-24 hr PO or IV (max dose: 200 mg/24 hr) ; Rifampicin AND Doxycycline 2-5 mg/kg/24 hr divided q 12-24 hr PO or IV (max dose: 200 mg/24 hr) . Third-line: Linezolid 10 mg/kg q 12 hr IV or PO
- 15.2.2.3 Methicillin-resistant Staphylococcus aureus (MRSA): Linezolid 10 mg/kg q 12 hr IV or PO
- 15.3 Long-term oral antibiotic treatment
- 15.3.1 Preferred Regimen in adults
- 15.3.1.1 Recommended first-line treatment and length of treatment
- 15.3.1.1.1 Methicillin-susceptible Staphylococcus aureus (MSSA): Flucloxacillin 500 mg oral bd
- 15.3.1.2 Recommended second-line treatment and length of treatment
- 15.3.1.2.1 Methicillin-susceptible Staphylococcus aureus (MSSA): Clarithromycin 250 mg oral bd
- 16. Empyema
- Preferred regimen: Nafcillin 2 gm IV q4h OR oxacillin 2 gm IV q4h if MSSA
- Alternate regimen: Vancomycin 1 gm IV q12h OR Linezolid 600 mg po bid if MRSA
- 17. Community-acquired pneumonia
- 17.1 Methicillin-susceptible Staphylococcus aureus (MSSA)
- Preferred Regimen : Nafcillin 1000-2000 mg q4h OR Oxacillin 2 g IV q4h OR Flucloxacillin 250 mg IM/IV q6h
- Alternative Regimen : Cefazolin 500 mg IV q12h OR Clindamycin 150-450 mg PO q6-8h
- 17.2 Methicillin-resistant Staphylococcus aureus (MRSA)
- Preferred Regimen : Vancomycin 45-60 mg/kg/day divided q8-12h (max: 2000 mg/dose) for 7-21 days OR Linezolid 600 mg PO/IV q12h for 10-14 days
- Alternative Regimen: Trimethoprim-Sulfamethoxazole 1-2 double-strength tablets (800/160 mg) q12-24h
- 18. Olecranon bursitis or prepatellar bursitis
- 18.1 Methicillin-susceptible Staphylococcus aureus (MSSA)
- Preferred regimen: Nafcillin 2 g IV q4h OR Oxacillin 2 g IV q4h OR Dicloxacillin 500 mg PO qid
- 18.2 Methicillin-resistant Staphylococcus aureus (MRSA)
- Preferred regimen: Vancomycin 1 g IV q12h OR Linezolid 600 mg PO qd
- Note: Initially aspirate q24h and treat for a minimum of 2–3 weeks.
- 19. Septic arthritis
- 19.1 In adults
- 19.1.1 Methicillin-resistant Staphylococcus aureus (MRSA)
- Preferred regimen: Vancomycin 15–20 mg/kg IV q8–12h
- Alternative regimen (1): Daptomycin 6 mg/kg IV q24h in adults
- Alternative regimen (2): Linezolid 600 mg PO/IV q12h
- Alternative regimen (3): Clindamycin 600 mg PO/IV q8h
- Alternative regimen (4): TMP-SMX 3.5–4.0 mg/kg PO/IV q8–12h
- 19.2 In childern
- Preferred regimen: Vancomycin 15 mg/kg IV q6h OR Daptomycin 6–10 mg/kg IV q24h OR Linezolid 10 mg/kg PO/IV q8h OR Clindamycin 10–13 mg/kg/dose PO/IV q6–8h
- 19.2.1 Methicillin-susceptible Staphylococcus aureus (MSSA)
- Preferred regimen: Nafcillin 2 g IV q6h OR Clindamycin 900 mg IV q8h
- Alternative regimen: Cefazolin 0.25–1 g IV/IM q6–8h OR Vancomycin 500 mg IV q6h or 1 g IV q12h
- 20. Septic arthritis, prosthetic joint infection (device-related osteoarticular infections)
- 20.1 Methicillin-susceptible Staphylococcus aureus (MSSA)
- Preferred regimen: Nafcillin 2 g IV q4–6h OR Oxacillin 2 g IV q4–6h
- Alternative regimen: Cefazolin 1–2 g IV q8h OR Ceftriaxone 2 g IV q24h
- Alternative regimen (if allergic to penicillins): Clindamycin 900 mg IV q8h OR Vancomycin 15–20 mg/kg IV q8–12 hours, not to exceed 2 g per dose
- 20.2 Methicillin-resistant Staphylococcus aureus (MRSA)
- Early-onset (< 2 months after surgery) or acute hematogenous prosthetic joint infections involving a stable implant with short duration (< 3 weeks) of symptoms and debridement (but device retention)
- Preferred regimen: Vancomycin AND Rifampin 600 mg PO qd or 300–450 mg PO bid for 2 weeks
- Alternative regimen: (Daptomycin 6 mg/kg IV q24h OR Linezolid 600 IV q8h) AND Rifampin 600 mg PO qd or 300–450 mg PO bid for 2 weeks
- Note: The above regimen should be followed by Rifampin plus a fluoroquinolone, TMP/SMX, a tetracycline or Clindamycin for 3 or 6 months for hips and knees, respectively.
- 21. Hematogenous osteomyelitis
- 21.1 Adult (>21 yrs)
- 21.1.1 Methicillin-resistant Staphylococcus aureus (MRSA) possible
- Preferred regimen: Vancomycin 1 gm IV q12h (if over 100 kg, 1.5 gm IV q12h)
- 21.1.2 Methicillin-resistant Staphylococcus aureus (MRSA) unlikely
- 21.2 Children (>4 mos.)-Adult
- 21.2.1 Methicillin-resistant Staphylococcus aureus (MRSA) possible
- Preferred regimen: Vancomycin 40 div q6–8h
- 21.2.2 Methicillin-resistant Staphylococcus aureus (MRSA) unlikely
-
- Note: Add Ceftazidime 50 q8h or Cefepime 150 div q8h if Gm-neg. bacilli on Gram stain
- 21.3 Newborn (<4 mos.)
- 21.3.1 Methicillin-resistant Staphylococcus aureus (MRSA) possible
- Preferred regimen: Vancomycin AND (Ceftazidime 2 gm IV q8h or Cefepime 2 gm IV q12h)
- 21.3.2 Methicillin-resistant Staphylococcus aureus (MRSA) unlikely
- Preferred regimen: (Nafcillin OR Oxacillin) AND (Ceftazidime OR Cefepime)
- 21.4 Specific therapy
- 21.4.1 Methicillin-susceptible Staphylococcus aureus (MSSA)
- Preferred regimen: Nafcillin OR Oxacillin 2 gm IV q4h OR Cefazolin 2 gm IV q8h
- Alternative regimen: Vancomycin 1 gm IV q12h (if over 100 kg, 1.5 gm IV q12h)
- 21.4.2 Methicillin-resistant Staphylococcus aureus (MRSA)
- Preferred regimen: Vancomycin 1 gm IV q12h
- Alternative regimen: Linezolid 600 mg q12h IV/po ± Rifampin 300 mg po/IV bid
- 22. Diabetic foot osteomyelitis
- High Risk for MRSA
- Preferred regimen: Linezolid 600 mg IV/PO q12h OR Daptomycin 4 mg/kg IV q24h OR Vancomycin 15–20 mg/kg IV q8–12h (trough: 10–20 mg/L)
- 23. Necrotizing fasciitis[17]
- 23.1 In adult
- Preferred regimen (1): Nafcillin 1–2 g IV q4h (Severe Pencillin allergy: Vancomycin, linezolid, quinupristin/dalfopristin, daptomycin)
- Preferred regimen (2): Oxacillin 1–2 g IV q4h
- Preferred regimen (3): Cefazolin 1 g IV q8h
- Preferred regimen (4): Vancomycin 15 mg/kg IV bid
- Preferred regimen (5): Clindamycin 600–900 mg IV q8h
- 23.2 In childern
- Preferred regimen (1): Nafcillin 50 mg/kg/dose IV q6h (Severe Pencillin allergy: Vancomycin, linezolid, quinupristin/dalfopristin, daptomycin)
- Preferred regimen (2): Oxacillin 50 mg/kg/dose IV q6h
- Preferred regimen (3): Cefazolin 33 mg/kg/dose IV q8h
- Preferred regimen (4): Vancomycin 15 mg/kg/dose IV q6h
- Preferred regimen (5): Clindamycin 10–13 mg/kg/dose IV q8h (Bacteriostatic; potential cross-resistance and emergence of resistance in erythromycin-resistant strains; inducible resistance in methicillin resistent staphylococcus aureus)
- 24. Staphylococcal toxic shock syndrome [18]
- 24.1 Methicillin sensitive Staphylococcus aureus
- Preferred regimen: Cloxacillin 250-500 mg PO q6h (max dose: 4 g/24 hr) OR Nafcillin 4-12 g/24 hr divided IV q4-6hr (max dose: 12 g/24 hr) OR Cefazolin 0.5-2g IV or IM q8h (max dose: 12 g/24 hr), AND Clindamycin 150-600 mg IV, IM, or PO q6-8h (max dose: 5 g/24 hr IV or IM or 2 g/24 hr PO)
- Alternative regimen (1):Clarithromycin 250-500 mg PO q12h (max dose: 1 g/24 hr) AND Clindamycin 150-600 mg IV, IM, or PO q6-8h (max dose: 5 g/24 hr IV or IM or 2 g/24 hr PO)
- Alternative regimen (1):Rifampicin, AND Linezolid 600 mg IV or PO q12h OR Daptomycin OR Tigecycline 100 mg loading dose followed by 50 mg IV q12h
- 24.2 Methicillin resistant Staphylococcus aureus
- Preferred regimen: Clindamycin 150-600 mg IV, IM, or PO q6-8h (max dose: 5 g/24 hr IV or IM or 2 g/24 hr PO) OR Linezolid 600 mg IV or PO q12h AND Vancomycin 15 to 20 mg/kg IV q8-12h, not to exceed 2 g per dose or Teicoplanin
- Alternative regimen (1):Rifampicin, AND Linezolid 600 mg q12h IV or PO OR Daptomycin OR Tigecycline 100 mg loading dose followed by 50 mg q12h IV
- 24.3 Glycopeptide resistant or intermediate Staphylococcus aureus
- Preferred regimen: Linezolid 600 mg IV or PO q12h AND Clindamycin 150-600 mg IV, IM, or PO q6-8h (max dose: 5 g/24 hr IV or IM or 2 g/24 hr PO) (if sensitive)
- Alternative regimen (1):Daptomycin OR Tigecycline 100 mg loading dose followed by 50 mg IV q12h
- Note: Incidence increasing. Geographical patterns highly variable.
- Staphylococcus aureus ,prophylaxis
- 1. Prophylaxis for coronary artery bypass graft-associated acute mediastinitis[19]
- 1.1 Methicillin susceptible staphylococcus aureus (MSSA)
- Preferred regimen: A first- or second-generation Cephalosporin is recommended for prophylaxis in patients without methicillin-resistant Staphylococcus aureus colonization.
- 1.2 Methicillin resistant staphylococcus aureus (MRSA)
- Preferred regimen: Vancomycin alone or in combination with other antibiotics to achieve broader coverage is recommended for prophylaxis in patients with proven or suspected methicillin-resistant S. aureus colonization
- Note (1): Preoperative antibiotics should be administered to all patients to reduce the risk of mediastinitis in cardiac surgery.
- Note (2): The use of intranasal Mupirocin is reasonable in nasal carriers of Staphylococcus aureus.
- Staphylococcus epidermidis
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- Staphylococcus haemolyticus
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- 1. Bacteremia: most often due to IV lines, vascular grafts, cardiac valves (30-40% of all coagulase-negative staphylococcus infections)
- Preferred regimen: Vancomycin 15 mg/kg IV q12h with or without Rifampin 300 mg q8h IV/PO OR Gentamicin 3 mg/kg/day IV q8h AND Vancomycin AND Rifampin 300 mg q8h IV/PO for prosthetic valve IE.
- Alternative regimen (methicillin resistent Staphylococcus epidermidis) (1): Linezolid 600 mg IV/PO bd OR Daptomycin IV 6 mg/kg/day with or without Rifampin 300 mg q8h IV/PO.
- Alternative regimen (methicillin-sensitive Staphylococcus epidermidis) (2): (Oxacillin 1.5-3 g IV q6h OR Nafcillin 1.5-3 g IV q6h), OR Cefazolin 1-2 g IV q8h OR Ciprofloxacin 400 mg IV q12h OR Clindamycin 600 mg IV q8h OR Trimethoprim-Sulfamethoxazole.
- Note: Site sepcific recommendation for peripheral line is to remove line, antibiotics for 5-7 days and for central line may often keep line and systemic antibiotics for 2 wks with antibiotics lock.
-
- 2. CSF shunt: meningitis
- Preferred regimen: Vancomycin 15 mg/kg IV q12h with or without Rifampin 300 mg q8h IV/PO OR Gentamicin 3 mg/kg/day IV q8h added to Vancomycin AND Rifampin 300 mg IV/PO q8h for prosthetic valve IE.
- Alternative regimen (methicillin resistent Staphylococcus epidermidis) (1): Linezolid 600 mg IV/PO bd OR Daptomycin IV 6 mg/kg/day with or without Rifampin 300 mg IV/PO q8h.
- Alternative regimen (methicillin-sensitive Staphylococcus epidermidis) (2): (Oxacillin 1.5-3 g IV q6h OR Nafcillin 1.5-3 g IV q6h), OR Cefazolin 1-2 g IV q8h OR Ciprofloxacin 400 mg IV q12h OR Clindamycin 600 mg IV q8h OR Trimethoprim-Sulfamethoxazole.
- Note: Shunt removal usually recommended but variable. Vancomycin 22.5 mg/kg IV q12h and rifampin PO/IV and possible intraventricular antibiotics: Vancomycin 20 mg/day with or without Gentamicin 4-8 mg/day is recommended.
- 3. Peritoneal dialysis catheter: peritonitis
- Preferred regimen: Vancomycin 15 mg/kg IV q12h with or without Rifampin 300 mg q8h IV/PO OR Gentamicin 3 mg/kg/day IV q8h added to Vancomycin AND Rifampin 300 mg q8h IV/PO for prosthetic valve IE.
- Alternative regimen (methicillin resistent Staphylococcus epidermidis) (1): Linezolid 600 mg IV/PO bd OR Daptomycin IV 6 mg/kg/day with or without Rifampin 300 mg q8h IV/PO.
- Alternative regimen (methicillin-sensitive Staphylococcus epidermidis) (2): (Oxacillin 1.5-3 g IV q6h OR Nafcillin 1.5-3 g IV q6h), OR Cefazolin 1-2 g IV q8h OR Ciprofloxacin 400 mg IV q12h OR Clindamycin 600 mg IV q8h OR Trimethoprim-Sulfamethoxazole.
- Note: Site sepcific recommendation is to keep dialysis catheter (at least for first effort) and IV Vancomycin (usually 2 g IV/wk and redose when level <15 mcg/mL) with antibiotics lock for 10-14 days.
- 4. Prosthetic joint: septic arthritis
- Preferred regimen: Vancomycin 15 mg/kg IV q12h with or without Rifampin 300 mg q8h IV/PO OR Gentamicin 3 mg/kg/day IV q8h added to Vancomycin AND Rifampin 300 mg q8h IV/PO for prosthetic valve IE.
- Alternative regimen (methicillin resistent Staphylococcus epidermidis) (1): Linezolid 600 mg IV/PO bd OR Daptomycin IV 6 mg/kg/day with or without Rifampin 300 mg q8h IV/PO.
- Alternative regimen (methicillin-sensitive Staphylococcus epidermidis) (2): (Oxacillin 1.5-3 g IV q6h OR Nafcillin 1.5-3 g IV q6h), OR Cefazolin 1-2 g IV q8h OR Ciprofloxacin 400 mg IV q12h OR Clindamycin 600 mg IV q8h OR Trimethoprim-Sulfamethoxazole.
- Note: Site sepcific recommendation is typically remove joint (two stage more common than single stage replacement), antibiotics for 6 wks. If very early infection (less than 3 wks post-op, debridement and retention an option).
- 5. Prosthetic or natural cardiac valve: endocarditis
- Preferred regimen: Vancomycin 15 mg/kg IV q12h with or without Rifampin 300 mg q8h IV/PO OR Gentamicin 3 mg/kg/day IV q8h added to Vancomycin AND Rifampin 300 mg q8h IV/PO for prosthetic valve IE.
- Alternative regimen (methicillin resistent Staphylococcus epidermidis) (1): Linezolid 600 mg IV/PO bd OR Daptomycin IV 6 mg/kg/day with or without Rifampin 300 mg q8h IV/PO.
- Alternative regimen (methicillin-sensitive Staphylococcus epidermidis) (2): (Oxacillin 1.5-3 g IV q6h OR Nafcillin 1.5-3 g IV q6h), OR Cefazolin 1-2 g IV q8h OR Ciprofloxacin 400 mg IV q12h OR Clindamycin 600 mg IV q8h OR Trimethoprim-Sulfamethoxazole.
- Note: Site sepcific recommendation is consider valve replacement and antibiotics for 6 wks.
- 6. Post-sternotomy: osteomyelitis
- Preferred regimen: Vancomycin 15 mg/kg IV q12h with or without Rifampin 300 mg q8h IV/PO OR Gentamicin 3 mg/kg/day IV q8h added to Vancomycin AND Rifampin 300 mg q8h IV/PO for prosthetic valve IE.
- Alternative regimen (methicillin resistent Staphylococcus epidermidis) (1): Linezolid 600 mg IV/PO bd OR Daptomycin IV 6 mg/kg/day with or without Rifampin 300 mg q8h IV/PO.
- Alternative regimen (methicillin-sensitive Staphylococcus epidermidis) (2): (Oxacillin 1.5-3 g IV q6h OR Nafcillin 1.5-3 g IV q6h), OR Cefazolin 1-2 g IV q8h OR Ciprofloxacin 400 mg IV q12h OR Clindamycin 600 mg IV q8h OR Trimethoprim-Sulfamethoxazole.
- 7. Implants (breast, penile, pacemaker) and other prosthetic devices: local infection
- Preferred regimen: Vancomycin 15 mg/kg IV q12h with or without Rifampin 300 mg q8h IV/PO OR Gentamicin 3 mg/kg/day IV q8h added to Vancomycin AND Rifampin 300 mg q8h IV/PO for prosthetic valve IE.
- Alternative regimen (methicillin resistent Staphylococcus epidermidis) (1): Linezolid 600 mg IV/PO bd OR Daptomycin IV 6 mg/kg/day with or without Rifampin 300 mg q8h IV/PO.
- Alternative regimen (methicillin-sensitive Staphylococcus epidermidis) (2): (Oxacillin 1.5-3 g IV q6h OR Nafcillin 1.5-3 g IV q6h), OR Cefazolin 1-2 g IV q8h OR Ciprofloxacin 400 mg IV q12h OR Clindamycin 600 mg IV q8h OR Trimethoprim-Sulfamethoxazole.
- Note: Site sepcific recommendation for vascular graft is to remove graft, antibiotics for 6 wks.
- 8. Post-ocular surgery: endophthalmitis
- Preferred regimen: Vancomycin 15 mg/kg IV q12h with or without Rifampin 300 mg q8h IV/PO OR Gentamicin 3 mg/kg/day IV q8h added to Vancomycin AND Rifampin 300 mg q8h IV/PO for prosthetic valve IE.
- Alternative regimen (methicillin resistent Staphylococcus epidermidis) (1): Linezolid 600 mg IV/PO bd OR Daptomycin IV 6 mg/kg/day with or without Rifampin 300 mg q8h IV/PO.
- Alternative regimen (methicillin-sensitive Staphylococcus epidermidis) (2): (Oxacillin 1.5-3 g IV q6h OR Nafcillin 1.5-3 g IV q6h), OR Cefazolin 1-2 g IV q8h OR Ciprofloxacin 400 mg IV q12h OR Clindamycin 600 mg IV q8h OR Trimethoprim-Sulfamethoxazole.
- 9. Surgical site infections
- Preferred regimen: Vancomycin 15 mg/kg IV q12h with or without Rifampin 300 mg q8h IV/PO OR Gentamicin 3 mg/kg/day IV q8h added to Vancomycin AND Rifampin 300 mg q8h IV/PO for prosthetic valve IE.
- Alternative regimen (methicillin resistent Staphylococcus epidermidis) (1): Linezolid 600 mg IV/PO bd OR Daptomycin IV 6 mg/kg/day with or without Rifampin 300 mg q8h IV/PO.
- Alternative regimen (methicillin-sensitive Staphylococcus epidermidis) (2): (Oxacillin 1.5-3 g IV q6h OR Nafcillin 1.5-3 g IV q6h), OR Cefazolin 1-2 g IV q8h OR Ciprofloxacin 400 mg IV q12h OR Clindamycin 600 mg IV q8h OR Trimethoprim-Sulfamethoxazole.
- Note: only assume Methicillin susceptible if multiple isolates are so identified.
- Staphylococcus lugdunensis
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- Staphylococcus lugdunensis
- 1. Postpartum mastitis with or without abscess [20]
- Preferred regimen: In outpatient is Dicloxacillin 500 mg po qid OR Cephalexin 500 mg po qid and in inpatient is Oxacillin OR Nafcillin 2 gm IV q4h
- Alternative regimen: In outpatient is Trimethoprim-Sulfamethoxazole-DS tabs 1-2 po bid or, if susceptible, Clindamycin 300 mg po qid and in inpatient is Vancomycin 1 gm IV q12h; if over 100 kg, 1.5 gm IV q12h.
- Note (1): Mastitis with no abscess- increase frequency of nursing may hasten response.
- Note (2): Mastitis with abscess- needle aspiration reported successful. Resume breast feeding from affected breast as soon as pain allows.
- 2. Non-puerperal mastitis with abscess
- Preferred regimen: In outpatient is Dicloxacillin 500 mg po qid OR Cephalexin 500 mg po qid and in inpatient is Oxacillin OR Nafcillin 2 gm IV q4h
- Alternative regimen: In outpatient is Trimethoprim-Sulfamethoxazole-DS tabs 1-2 po bid or, if susceptible, Clindamycin 300 mg po qid and in inpatient is Vancomycin 1 gm IV q12h; if over 100 kg, 1.5 gm IV q12h.
- Note (1): If subareolar & odoriferous, most likely anaerobes; need to add Metronidazole 500 mg IV/po tid.
- Note (2): If not subareolar, staph. Need pretreatment aerobic/anaerobic cultures. Surgical drainage for abscess.
- Note (3):Staphylococcus lugdunensis usually susceptible to gentamicin. 75% are penicillin-susceptible.
- Staphylococcus saprophyticus
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- Staphylococcus saprophyticus
- 1. Urinary tract infection [21]
- 1.1 Acute uncomplicated urinary tract infection (cystitis-urethritis) in females
- Preferred regimen : Cephalosporin PO OR Amoxicillin-Clavulanate 625 mg PO OR Trimethoprim-Sulfamethoxazole-DS bid for 3 days; if sulfa allergy, Nitrofurantoin 100 mg po bid for 5 days OR Fosfomycin 3 gm po as a single dose AND Pyridium.
- Alternative regimen (in sulfa allergy): then 3 days of Ciprofloxacin 250 mg bid OR Ciprofloxacin-Erythromycin 500 mg q24h OR Levofloxacin 250 mg q24h OR Moxifloxacin 400 mg q24h OR Nitrofurantoin 100 mg bid OR Fosfomycin single 3 gm dose AND Phenazopyridine Pyridium 200 mg po tid times 2 days.
- Note (1): Pyridium non-prescription—may relieve dysuria. Hemolysis if G6PD deficient.
- Note (2): >7-day treatment recommended in pregnancy [discontinue or do not use sulfonamides (Trimethoprim-Sulfamethoxazole) near term (2 weeks before EDC) because of potential increase in kernicterus]. If failure on 3-day course, culture and treat for 2 weeks.
- 1.2 Recurrent urinary tract infection in postmenopausal women
- Preferred regimen : Trimethoprim-Sulfamethoxazole-DS bid for 3 days; if sulfa allergy, Nitrofurantoin 100 mg po bid for 5 days OR Fosfomycin 3 gm po as a single dose AND Pyridium.
- Alternative regimen (in sulfa allergy): then 3 days of Ciprofloxacin 250 mg bid OR Ciprofloxacin-Erythromycin 500 mg q24h OR Levofloxacin 250 mg q24h OR Moxifloxacin 400 mg q24h OR Nitrofurantoin 100 mg bid OR Fosfomycin single 3 gm dose AND Phenazopyridine Pyridium 200 mg po tid times 2 days.
- Note (1): Recurrent urinary tract infection definition is ≥3 culture and symptomatic urinary tract infection in 1 year or 2 urinary tract infection in 6 months. Evaluate for potentially correctable urologic factors like (1) cystocele (2) incontinence (3) increased residual urine volume (≥50 mL).
- Note (2): Nitrofurantoin more effective than vaginal cream in decreasing frequency, but adverse effect is pulmonary fibrosis with long-term Nitrofurantoin treatment.
- Streptobacillus moniliformis
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- Streptobacillus moniliformis
- Streptococcus moniliformis treatment[22]
- 1. Migratory arthropathy and arthritis
- Preferred regimen (uncomplicated disease): Penicillin G 2.4-4.8 MU/day IV divided q6h. If better after 1 wk, switch to oral Amoxicillin OR Penicillin Vk complete 14 days.
- 2. Diarrhea, (especially kids) liver or spleen abscess
- Preferred regimen (uncomplicated disease): Penicillin G 2.4-4.8 MU/day IV divided q6h. If better after 1 wk, switch to oral Amoxicillin OR Penicillin Vk complete 14 days.
- 3. Undifferentiated fever
- Preferred regimen (uncomplicated disease): Penicillin G 2.4-4.8 MU/day IV divided q6h. If better after 1 wk, switch to oral Amoxicillin OR Penicillin Vk complete 14 days.
- 4. Endocarditis, myocarditis, pericarditis (cardiac)
- Preferred regimen: Penicillin 20 MU/day IV divided q4h. Optimal duration recommendation for infective endocarditis is 4 weeks.
- Alternative regimen: Cephalosporins-Ceftriaxone OR Clindamycin OR Erythromycin OR Chloramphenicol AND Streptomycin.
- 5. Meningitis, brain abscess
- Preferred regimen: Penicillin 20 MU/day IV divided q4h.
- Alternative regimen: Cephalosporins-Ceftriaxone OR Clindamycin OR Erythromycin OR Chloramphenicol AND Streptomycin.
- 6. Anemia
- Preferred regimen (uncomplicated disease): Penicillin G 2.4-4.8 MU/day IV divided q6h. If better after 1 wk, switch to oral Amoxicillin OR Penicillin Vk complete 14 days.
- 7. Pneumonia
- Preferred regimen (uncomplicated disease): Penicillin G 2.4-4.8 MU/day IV divided q6h. If better after 1 wk, switch to oral Amoxicillin OR Penicillin Vk complete 14 days.
- 8. Amnionitis (pregnancy)
- Preferred regimen (uncomplicated disease): Penicillin G 2.4-4.8 MU/day IV divided q6h. If better after 1 wk, switch to oral Amoxicillin OR Penicillin Vk complete 14 days.
- 9. Renal abscess
- Preferred regimen (uncomplicated disease): Penicillin G 2.4-4.8 MU/day IV divided q6h. If better after 1 wk, switch to oral Amoxicillin OR Penicillin Vk complete 14 days.
- Streptococcus anginosus
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- Streptococcus pneumoniae
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- Streptococcus pyogenes
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-
- 1. Pharynx:::* 1.1 Pharyngitis
- Preferred regimen: Penicillin-benzathine]] Penicillin 1.2 mU IM once OR Penicillin VK 500 mg PO bd or tid for 10 days.
- Alternative regimen (1): Amoxicillin 750 PO bd or tid for 10 days.
- Alternative regimen (Penicillin allergy) (2): Erythromycin 500 mg PO bd or tid for 10 days OR (Azithromycin 500 mg, then 250 mg for 5 days, Clarithromycin (Biaxin) 1 g XR/day or 500 mg bd for 10 days. Note: 5-10% isolates are macrolide resistant) OR Cefpodoxime proxetil (Vantin) 200 mg bd for 5 days OR Cefdinir 300 mg bd PO for 5 days OR Cefadroxil 500 mg bd PO for 5 days OR Loracarbef 200 mg PO bd for 5 days.
- 1.2 Epiglottitis in childern
- Preferred regimen: Cefotaxime 50 mg/kg IV q8h OR Ceftriaxone 50 mg/kg IV q24h
- alternative regimen: Amoxicillin-SB 100–200 mg/kg qd q6h OR Trimethoprim-Sulfamethoxazole 8–12 mg Trimethoprim/kg qd div q12h
- Note: Have tracheostomy set “at bedside.” Chloro is effective, but potentially less toxic alternative agents available.
- 2. Skin:::* 2.1 Erysipelas, lymphangitis, cellulitis
- Preferred regimen (1): Clindamycin 600 mg IV q8h AND Penicillin G G 4 mU IV q4h. (clindamycin to stop toxin production).
- Preferred regimen (2) topical antimicrobials: Retapamulin (Altabax) 1% ointment 5, 10 & 15 gm bid tubes.
- Note: Microbiologic success with Retapamulin (Altabax) 1% ointment in 90% S. aureus infections and 97% of S. pyogenes infections(do not use for MRSA)
- Alternative regimen: Penicillin G 2-4 mU IV q4h OR Clindamycin 600 mg IV q8h OR Cefazolin 1-2 g IV q6-8h OR Cefotaxime 2-3 g IV q6-8h OR Ceftriaxone 2 g/day IV OR Vancomycin 15 mg/kg IV q12h.
- 2.2 Burn wound sepsis
- Preferred regimen: Vancomycin 1 gm IV q12h) AND (Amikacin 10 mg/kg IV loading dose then 7.5 mg/kg IV q12h) AND [ Piperacillin 4 gm IV q4h (give ½ q24h dose of Piperacillin into subeschar tissues with surgical eschar removal within 12 hours)]. Can use Piperacillin-Tazobactam if Piperacillin not available.
- Note: Erythema multiformedue to Herpes simplex type 1, mycoplasma, Streptococcus pyogenes, drugs (sulfonamides, phenytoin, penicillins)
- 3. Soft tissue
- Note: For necrotizing fasciitis, surgical consultation for emergent fasciotomy and debridement; repeat debridements usually necessary.
- 4. Muscle
- Note: For myositis-debirdement is recommended.
- 5. Toxin mediated
- 5.1 Toxic shock syndrome
- Preferred regimen (1): Penicillin G 24 MU qd IV AND Clindamycin 900 mg IV q8h
- Preferred regimen (2): Immunoglobulin-G IV 1 gm/kg day 1, then 0.5 gm/kg days 2 & 3.,massive IV fluids (10-20 L/day), Albumin if <2 g/dL, debridement of necrotic tissue
- Alternative regimen: Ceftriaxone 2 gm IV q24h AND Clindamycin 900 mg IV q8h
- Note (1): Surgery usually required.
- Note (2): Mortality with fasciitis 30–50%, myositis 80% even with early treatment.
- Note (3): Clindamycin decreases toxin production.
- Note (4): Use of NSAID may predispose to TSS.
- Note (5): For reasons Penicillin G may fail in fulminant Streptococcus pyogenes infections
- Note (6):Immunoglobulin-G IV associated with decreased in sepsis-related organ failure. IVIG preparations vary in neutralizing antibody content.
- 6. Breast implant infection
- Preferred regimen for acute infection: Vancomycin 1 gm IV q12h; if over 100 kg, 1.5 gm q12h.
- Note: Acute infection caused by Staphylococcus aureus, Sreptococcus pyogenes. Toxic shock syndrome reported.
- Preferred regimen for chronic infection:
- Note (1): For chronic infections look for rapidly growing Mycobacteria
- Note (2): For chronic infections wait for culture results.
- 7. Acute mastoiditis
- 7.1 Outpatient treatment
- 7.1.1 Adult doses for sinusitis
- Preferred regimen: Amoxicillin-Clavulanate-ES 2000/125 mg PO bid OR Amoxicillin HD high dose 1 gm PO tid OR Clarithromycin 500 mg PO bid or Clarithromycin ext. release 1 gm PO q24h OR Doxycycline 100 mg PO bid, respiratory Fluoroquinolones (Gatifloxacin 400 mg PO q24h (not available in USA) due to hypo/hyperglycemia OR Gemifloxacin 320 mg PO q24h (not FDA indication but should work) OR Levofloxacin 750 mg PO q24h for 5 days OR Moxifloxacin 400 mg PO q24h) OR Cephalosporins (Cefdinir 300 mg PO q12h or 600 mg PO q24h OR Cefpodoxime 200 mg PO bid OR Cefprozil 250–500 mg PO bid OR Cefuroxime 250 mg PO bid), OR Trimethoprim-Sulfamethoxazole 1 double-strength (Trimethoprim 160 mg PO) bid (results after 3- and 10-day treatment similar).
- 7.1.2 Pediatric doses for sinusitis
- Preferred regimen: Amoxicillin HD high dose 90 mg/kg PO q8h or q12h OR Amoxicillin-Clavulanate-ES (extra strength) pediatric susp 90 mg Amoxicillin/kg/day PO qd q12h OR Azithromycin 10 mg/kg PO qd, then 5 mg/kg PO qd 3 days OR Clarithromycin 15 mg/kg PO qd q12h OR Cefpodoxime 10 mg/kg PO qd (max. 400 mg) q12–24h OR Cefuroxime axetil 30 mg/kg PO qd q12h OR Cefdinir 14 mg/kg PO qd q24h or bid OR Trimethoprim-Sulfamethoxazole 8–12 mg Trimethoprim/40–60 mg Sulfamethoxazole/kg PO qd q12h
- Note: need Vancomycin OR Nafcillin/Oxacillin if culture positive for Staphylococcus aureus.
- 7.2 Hospitalized treatment
- Preferred regimen: Cefotaxime 1–2 gm IV q4–8h (depends on severity) OR Ceftriaxone 1 gm IV q24h)
- 8. Eye
- 8.1 Keratitis
- 8.1.1 Acute bacterial keratitis
- Preferred regimen: Moxifloxacin eye gtts. 1 gtt tid for 7 days
- Alternative therapy: Gatifloxacin eye gtts. 1-2 gtts q2h while awake for 2 days, then q4h for 3-7 days.
- Note: Prefer Moxifloxacin due to enhanced lipophilicity and penetration into aqueous humor (1 gtt = 1 drop).
- 8.1.2 Keratitis due to dry cornea, diabetes, immunosuppression
- Preferred regimen: Cefazolin (50 mg/mL) AND (Gentamicin OR Tobramycin (14 mg/mL) q15–60 min around clock for 24–72 hrs, then slow reduction)
- Alternative therapy: Vancomycin (50 mg/mL) AND Ceftazidime (50 mg/mL) q15–60 min around clock for 24–72 hrs, then slow reduction.
- Note: Specific therapy guided by results of alginate swab culture and sensitivity. Ciprofloxacin 0.3% found clinically equivalent to CefazolinAND Tobramycin; only concern was efficacy of Ciprofloxacin vs S. pneumoniae
- 8.2 Dacryocystitis (lacrimal sac)
- Preferred regimen: Moxifloxacin eye gtts. 1 gtt tid for 7 days OR Cefazolin (50 mg/mL) (1 gtt = 1 drop)
- 9. Suppurative phlebitis
- Preferred regimen: Vancomycin 15 mg/kg IV q12h (normal weight):::* Alternative regimen: Daptomycin 6 mg/kg IV q12h:::: Note: Retrospective study for suppurative phlebitis recommends 2-3 weeks IV therapy and 2 weeks PO therapy.
- 10. Infected prosthetic joint
- Preferred regimen: Penicillin G 2 MU IV q4h OR Ceftriaxone 2 gm IV q24h for 4 wks.
- Note: Debridement & prosthesis retention with intravenous antibiotics.
- 12. Diabetic foot ulcer (ulcer with <2 cm of superficial inflammation)
- Preferred regimen: (Trimethoprim-Sulfamethoxazole-DS 1-2 tabs PO bid OR Minocycline 100 mg PO bid) AND ([[Penicillin VK 500 mg PO qidOR selected Cephalosporins 2, 3 generation - cefprozil 500 mg PO q12h OR cefuroxime axetil 500 mg PO q12h OR cefdinir 300 mg PO q12h or 600 mg PO q24h OR cefpodoxime 200 mgPO q12h OR Fluoroquinolones Levo 750 mg po q24h).
- Note (1): Common infections are bacterial pharyngitis and cellulitis. Rare but devastating are toxic shock syndrome, necrotizing fasciitis.
- Note (2): Diagnosis recovery from normally sterile site, ASO antibody response (rheumatic fever),anti-DNAase B (pyoderma). Supportive are positive throat culture or rapid strep antigen test.
- Note (3): Cellulitis is very hard to detect Group A streptococcus by culture (needle aspiration or blood culture).
- Note (4): Ecologic niche is pharynx. 2-3% of adults colonized, 15-20% school children. Virulence depends on proteins that represent toxins, mimic host macromolecules and after immune responses.
- Note (5): Predisposing factors: soft tissue (IDU, diabetes, surgery, trauma, varicella, vein donor, lymphedema); pneumonia (influenza), contacts w/ gas (pharyngitis and fasciitis).
- Note (6): Mastoiditis has become a rare entity, presumably as result of the aggressive treatment of acute otitis media.
- Streptococcus pyogenes prophylaxis
- 1. Acute rheumatic fever prophylaxis
- Preferred regimen: Benzathine Penicillin 1.2 mu IM q mo, Penicillin V 250 mg PO bd, Erythromycin 250 mg PO bd until >5 yrs post-acute rheumatic fever and age in 20years.
- 2. Recurrent cellulitis, chronic lymphedema prophylaxis
- Preferred regimen: Clindamycin 150 mg PO qd OR Trimethoprim-Sulfamethoxaole 1 DS PO qd OR “stand-by therapy” immediate treatment with Penicillin V OR Amoxicillin 500-750 mg PO bd at onset of symptoms.
- Streptococcus agalactiae
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- Streptococcus agalactiae treatment [24]
- 1. Bacteremia, soft tissue infections
- Preferred regimen: Penicillin G 10-12 MU/day for 10 days [e.g., give 2 MU q4h or six divided doses/day].
- 2. Meningitis (Adult)
- Preferred regimen: Penicillin G 20-24 MU/day for 14-21 days.
- 3. Osteomyelitis
- Preferred regimen: Penicillin G 10-20 MU/d for 21-28 days.
- 4. Endocarditis
- Preferred regimen: Penicillin G 20-24 MU/day for 4-6 wks AND Gentamicin 1 mg/kg q8h for first 2 wks.
- Note (1):Gentamicin 1 mg/kg q8h IV additionally for any serious group B Streptococcus infection.
- Note (2): Penicillin allergic may substitute Vancomycin 15 mg/kg IV q12h for Penicillin.
- Note (3): Clindamycin can be considered, but rates of resistance vary. Consider confirming absence of inducible Clindamycin resistance (typically associated with macrolide resistance) before using as monotherapy.
- Note (4): Streptococcus agalactiae causes neonatal sepsis or meningitis, puerperal sepsis, chorioamnionitis; also bacteremia (often without clear source), skin and soft-tissue infections, septic arthritis. Found in gastrointestinal,genitourinary tracts. More common in adults >65 years and those with comorbidities.
Bacteria – Gram-Positive Bacilli
- Actinomyces israelii
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- Arcanobacterium haemolyticum
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- Bacillus anthracis
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- Bacillus anthracis, treatment
- 1. Treatment for cutaneous anthrax, without systemic involvement[25]
- Preferred regimen (regardless of penicillin susceptibility or if susceptibility is unknown): Ciprofloxacin 500 mg PO q12h OR Doxycycline 100 mg PO q12h OR Levofloxacin 750 mg PO q24h OR Moxifloxacin 400 mg PO q24h
- Alternative regimen: Clindamycin 600 mg PO q8h OR Amoxicillin 1 g PO q8h (for penicillin-susceptible strains) OR Penicillin VK 500 mg PO q6h (for penicillin-susceptible strains)
- Note: Duration of treatment is 60 days for bioterrorism-related cases and 7-10 days for naturally acquired cases.
- 2. Treatment for systemic anthrax including anthrax meningitis, inhalational anthrax, injectional anthrax, and gastrointestinal anthrax; and cutaneous anthrax with systemic involvement, extensive edema, or lesions of the head or neck[25]
- 2.1 Systemic anthrax with possible/confirmed meningitis
- 2.1.1 Bactericidal agent (fluoroquinolone): Ciprofloxacin 400 mg IV q8h (OR Levofloxacin 750 mg IV q24h OR Moxifloxacin 400 mg IV q24h) AND
- 2.1.2 Bactericidal agent (ß-lactam) for all strains, regardless of penicillin susceptibility or if susceptibility is unknown: Meropenem 2 g IV q8h OR Imipenem 1 g IV q6h OR Doripenem 500 mg IV q8h OR Penicillin G 4 MU IV q4h (for penicillin-susceptible strains) OR Ampicillin 3 g IV q6h (for penicillin-susceptible strains) AND
- 2.1.3 Protein synthesis inhibitor: Linezolid 600 mg IV q12h OR Clindamycin 900 mg IV q8h OR Rifampin 600 mg IV q12h OR Chloramphenicol 1 g IV q6-8h
- Note (1): Duration of treatment: = 2-3 weeks until clinical criteria for stability are met (Preferred drugs are indicated in boldface).
- Note (2): Patients exposed to aerosolized spores will require prophylaxis to complete an antimicrobial drug course of 60 days from onset of illness.
- Note (3): Alternative drugs are listed in order of preference for treatment for patients who cannot take first-line treatment, or if first-line treatment is unavailable.
- Note (4): Increased risk for seizures associated with Imipenem/Cilastatin treatment.
- Note (5): Linezolid should be used with caution in patients with thrombocytopenia because it might exacerbate it. Linezolid use for > 14 days has additional hematopoietic toxicity.
- Note (6): Rifampin is not a protein synthesis inhibitor. However, it may be used in combination with other antimicrobial drugs on the basis of its in vitro synergy.
- Note (7): Chloramphenicol should only be used if other options are not available because of toxicity concerns.
- 2.2 Systemic anthrax when meningitis has been excluded
- 2.2.1 Bactericidal agent: Ciprofloxacin 400 mg IV q8h OR Levofloxacin 750 mg IV q24h OR Moxifloxacin 400 mg q24h OR Meropenem 2 g IV q8h OR Imipenem 1 g IV q6h OR Doripenem 500 mg IV q8h OR Vancomycin 20 mg/kg IV q8h (maintain serum trough concentrations of 15-20 µg/mL) OR Penicillin G 4 MU IV q4h (penicillin-susceptible strains) OR Ampicillin 3 g IV q6h (penicillin-susceptible strains) AND
- 2.2.2 Protein synthesis inhibitor: Clindamycin 900 mg IV q8h OR Linezolid 600 mg IV q12h OR Doxycycline 200 mg IV initially, then 100 mg IV q12h OR Rifampin 600 mg IV q12h
- Note (1): Duration of treatment: for 2 weeks until clinical criteria for stability are met (Preferred drugs are indicated in boldface).
- Note (2): Patients exposed to aerosolized spores will require prophylaxis to complete an antimicrobial drug course of 60 days from onset of illness.
- Note (3): Alternative drugs are listed in order of preference for treatment for patients who cannot take first-line treatment, or if first-line treatment is unavailable.
- Note (4): Increased risk for seizures associated with Imipenem/Cilastatin treatment.
- Note (5): Linezolid should be used with caution in patients with thrombocytopenia because it might exacerbate it. Linezolid use for > 14 days has additional hematopoietic toxicity.
- Note (6): Rifampin is not a protein synthesis inhibitor. However, it may be used in combination with other antimicrobial drugs on the basis of its in vitro synergy.
- Note (7): A single 10-14 days course of Doxycycline is not routinely associated with tooth staining.
- 3. Specific considerations
- 3.1 Treatment of anthrax for pregnant Women
- 3.1.1 Intravenous antimicrobial treatment for systemic anthrax with possible/confirmed meningitis [26]
- 3.1.1.1 A Bactericidal Agent (Fluoroquinolone): Ciprofloxacin 400 mg IV q8h is preferred, OR Levofloxacin 750 mg IV q24h, OR
- 3.1.1.2 A Bactericidal Agent (ß-lactam)
- 3.1.1.2.1 For all strains, regardless of penicillin susceptibility or if susceptibility is unknown: Meropenem 2 g q8h,OR
- 3.1.1.2.2 Alternatives for penicillin-susceptible strains: Ampicillin 3 g IV q6h,OR Penicillin G 4 million units IV q4h, OR
- 3.1.1.3 A Protein Synthesis Inhibitor: Clindamycin 900 IV mg q8h,OR Rifampin 600 IV mg q12h
- Note (1): At least one antibiotic with transplacental passage is recommended.
- Note (2): Duration of treatment is for =2–3 weeks until clinical criteria for stability are met. Patients exposed to aerosolized spores will require prophylaxis to complete an antimicrobial drug course of 60 days from onset of illness.
- 3.1.2 Intravenous antimicrobial treatment for systemic anthrax when meningitis has been excluded
- 3.1.2.1 A Bactericidal Antimicrobial: Ciprofloxacin 400 mg IV q8h is preferred, OR Levofloxacin 750 mg IV q24h, OR
- 3.1.2.2 A Bactericidal Agent (ß-lactam)
- 3.1.2.2.1 For all strains, regardless of penicillin susceptibility or if susceptibility is unknown: Meropenem 2 g q8h,OR
- 3.1.2.2.2 Alternatives for penicillin-susceptible strains:Ampicillin 3 g IV q6h,OR Penicillin G 4 million units IV q4h, OR
- 3.1.2.3 A Protein Synthesis Inhibitor:Clindamycin 900 IV mg q8h,OR Rifampin 600 IV mg q12h
- Note (1): At least one antibiotic with transplacental passage is recommended.
- Note (2):Duration of treatment: for =2 weeks until clinical criteria for stability are met. Patients exposed to aerosolized spores will require prophylaxis to complete an antimicrobial drug course of 60 days from onset of illness
- 3.1.3 Oral antimicrobial treatment for cutaneous anthrax without systemic involvement
- 3.1.3.1 For all strains, regardless of penicillin susceptibility or if susceptibility is unknown: Ciprofloxacin 400 mg IV q8h is preferred.
- Note (1): duration of treatment is 60 days
- Note (2): Recommendations are specific to cutaneous anthrax in the setting of bioterrorism.
- 3.2 Treatment for anthrax in childern [27]
- 3.2.1 Treatment of cutaneous anthrax without systemic involvement (for children 1 month of age and older)
- 3.2.1.1 For all strains, regardless of penicillin susceptibility or if susceptibility is unknown : Ciprofloxacin, 30 mg/kg/day, by mouth (PO), divided q12h (not to exceed 500 mg/dose) OR Doxycycline, <45 kg: 4.4 mg/kg/day, PO, divided q12h (not to exceed 100 mg/dose) =45 kg: 100 mg/dose, PO, given q12h OR Clindamycin, 30 mg/kg/day, PO, divided q8h (not to exceed 600 mg/dose) OR Levofloxacin <50 kg: 16 mg/kg/day, PO, divided q12h (not to exceed 250 mg/dose) >50 kg: 500 mg, PO, given q24h OR
- 3.2.1.2 Alternatives for penicillin-susceptible strains: Amoxicillin, 75 mg/kg/day, PO, divided q8h (not to exceed 1 g/dose) OR Penicillin VK, 50-75 mg/kg/day, PO, divided q6h to q8h
- Note (1): Duration of therapy for naturally acquired infection: 7-10 days and for a biological weapon-related event: will require additional prophylaxis for inhaled spores, to complete an antimicrobial course of up to 60 days from onset of illness.
- Note (2): Bold font for preferred antimicrobial agent.
- Note (3): Normal font for alternative selections are listed in order of preference for therapy for patients who cannot take first-line therapy or first-line therapy is unavailable.
- Note (4): Doses are provided for children with normal renal and hepatic function. Doses may vary for those with some degree of organ failure.
- Note (5): Italicized font indicates FDA approval for the indication in the pediatric population.
- Note (6): A single 10- to 14-day course of doxycycline is not routinely associated with tooth staining.
- Note (7): Be aware of the possibility of emergence of penicillin-resistance during monotherapy with amoxicillin or penicillin.
- 3.2.2 Combination therapy for systemic anthrax when meningitis can be ruled out (for children 1 month of age and older)
- 3.2.2.1 A bactericidal antimicrobial
- 3.2.2.1.1 For all strains, regardless of penicillin susceptibility or if susceptibility is unknown: Ciprofloxacin, 30 mg/kg/day, intravenously (IV), divided q8h (not to exceed 400 mg/dose) OR Meropenem, 60 mg/kg/day, IV, divided q8h (not to exceed 2 g/dose) OR Levofloxacin <50 kg: 20 mg/kg/day, IV, divided q12h (not to exceed 250 mg/dose >50 kg: 500 mg, IV, q24h OR Imipenem/Cilastatin,a 100 mg/kg/day, IV, divided q6h (not to exceed 1 g/dose) OR Vancomycin, 60 mg/kg/day, IV, divided q8h (follow serum concentrations)
- 3.2.2.1.2 Alternatives for penicillin-susceptible strains: Penicillin G, 400 000 U/kg/day, IV, divided q4h (not to exceed 4 MU/dose) OR Ampicillin, 200 mg/kg/day, IV, divided q6h (not to exceed 3 g/dose) AND
- 3.2.2.2 A Protein Synthesis Inhibitor: Clindamycin, 40 mg/kg/day, IV, divided q8h (not to exceed 900 mg/dose) OR Linezolid (non-CNS infection dose): <12 y old: 30 mg/kg/day, IV, divided q8h =12 y old: 30 mg/kg/day, IV, divided q12h (not to exceed 600 mg/dose) OR Doxycycline <45 kg: 4.4 mg/kg/day, IV, loading dose (not to exceed 200 mg); =45 kg: 200 mg, IV, loading dose then <45 kg: 4.4 mg/kg/day, IV, divided q12h (not to exceed 100 mg/dose); =45 kg: 100 mg, IV, given q12h OR Rifampin,d 20 mg/kg/day, IV, divided q12h (not to exceed 300 mg/dose)
- Note (1): Duration of therapy for 14 days or longer until clinical criteria for stability are met.Will require prophylaxis to complete an antimicrobial course of up to 60 days from onset of illness.
- Note (2): Systemic anthrax includes inhalation anthrax; injection, gastrointestinal, or cutaneous anthrax with systemic involvement, extensive edema, or lesions of the head or neck.
- Note (3): Children with altered mental status, signs of meningeal inflammation, or focal neurologic deficits should be considered to have CNS infection if CSF examination is not possible. A normal CSF may not completely exclude deep brain hemorrhage/abscess.
- Note (4): Bold font for preferred antimicrobial agent.
- Note (5): Normal font for alternative selections are listed in order of preference for therapy for patients who cannot tolerate first-line therapy or if first-line therapy is unavailable.
- Note (6): Doses are provided for children with normal renal and hepatic function. Doses may vary for those with some degree of organ failure.
- Note (7): Increased risk of seizures associated with Imipenem/Cilastatin therapy.
- Note (8): Linezolid should be used with caution in patients with thrombocytopenia, as it may exacerbate it.Linezolid use for >14 days carries additional hematopoietic toxicity.
- Note (9): A single 14-day course of Doxycycline is not routinely associated with tooth staining.
- Note (10): Rifampin is not a protein synthesis inhibitor; it may also be used in combination therapy based on in vitro synergy
- 3.2.3 Triple therapy for systemic anthrax (anthrax meningitis or disseminated infection and meningitis cannot be ruled out) for Children 1 Month of Age and Older
- 3.2.3.1 A bactericidal antimicrobial (fluoroquinolone): Ciprofloxacin, 30 mg/kg/day, intravenously (IV), divided q8h (not to exceed 400 mg/dose)OR Levofloxacin <50 kg: 16 mg/kg/day, IV, divided q12h (not to exceed 250 mg/dose); >50 kg: 500 mg, IV, q24h OR Moxifloxacin 3 months to <2 years: 12 mg/kg/day, IV, divided q12h (not to exceed 200 mg/dose)
- 2-5 years: 10 mg/kg/day, IV, divided q12h (not to exceed 200 mg/dose)
- 6–11 years: 8 mg/kg/day, IV, divided q12h (not to exceed 200 mg/dose)
- 12–17 years, =45 kg body weight: 400 mg, IV, once daily
- 12–17 years, <45 kg body weight: 8 mg/kg/day, IV, divided q12h (not to exceed 200 mg/dose) AND
- 3.2.3.2 A bactericidal antimicrobial (ß-lactam or glycopeptide)
- 3.2.3.2.1 For all strains, regardless of penicillin susceptibility testing or if susceptibility is unknown: Meropenem, 120 mg/kg/day, IV, divided q8h (not to exceed 2 g/dose) OR Imipenem/Cilastatin, 100 mg/kg/day, IV, divided q6h (not to exceed 1 g/dose) OR Doripenem, 120 mg/kg/day, IV, divided q8h (not to exceed 1 g/dose) OR Vancomycin, 60 mg/kg/day, IV, divided q8h
- 3.2.3.2.2 Alternatives for penicillin-susceptible strains: Penicillin G, 400 000 U/kg/day, IV, divided q4h (not to exceed 4 MU/dose) OR Ampicillin, 400 mg/kg/day, IV, divided q6h (not to exceed 3 g/dose) AND
- 3.2.3.3 A Protein Synthesis Inhibitor: Linezolid <12 y old: 30 mg/kg/day, IV, divided every 8 h=12 y old: 30 mg/kg/day, IV, divided q12h (not to exceed 600 mg/dose) OR Clindamycin, 40 mg/kg/day, IV, divided q8h (not to exceed 900 mg/dose) OR Rifampin, 20 mg/kg/day, IV, divided q12h (not to exceed 300 mg/dose) OR Chloramphenicol, 100 mg/kg/day, IV, divided q6h
- Note (1): Duration of therapy for 2–3 wk or greater, until clinical criteria for stability are met.Will require prophylaxis to complete an antimicrobial course of up to 60 days from onset of illness.
- Note (2): Systemic anthrax includes anthrax meningitis; inhalation anthrax; or injection, gastrointestinal, and cutaneous anthrax with systemic involvement, extensive edema, or lesions of the head or neck.
- Note (3): Children with altered mental status, signs of meningeal inflammation, or focal neurologic deficits should be considered to have CNS infection if CSF examination is not possible. Normal CSF may not completely exclude deep brain hemorrhage/abscess.
- Note (4): Bold font for preferred antimicrobial agent.
- Note (5): Normal font for alternative selections are listed in order of preference for therapy for patients who cannot tolerate first-line therapy or if first-line therapy is unavailable.
- Note (6): Doses are provided for children with normal renal and hepatic function. Doses may vary for those with some degree of organ failure.
- Note (7): A 400-mg dose of Ciprofloxacin, IV, provides an equivalent exposure to that of a 500-mg ciprofloxacin oral tablet.
- Note (8): Increased risk of seizures associated with Imipenem/Cilastatin therapy.
- Note (9): Doripenem is approved in Japan at this dose for the treatment of community-acquired bacterial meningitis.
- Note (10): Linezolid should be used with caution in patients with thrombocytopenia, as it may exacerbate it. Linezolid use for >14 days carries additional hematopoietic toxicity.
- Note (11): Rifampin is not a protein synthesis inhibitor; it may also be used in combination therapy based on in vitro synergy for some strains of staphylococci. Not evaluated for Bacillus anthracis.
- Note (12) : Chloramphenicol Should be used only if other options are not available, because of toxicity concerns.
- 3.2.4 Oral follow-up combination therapy for severe anthrax (for Children 1 Month of Age and Older)
- 3.2.4.1 A bactericidal antimicrobial
- (a). For all strains, regardless of penicillin susceptibility or if susceptibility is unknown: Ciprofloxacin, 30 mg/kg/day, by mouth (PO), divided q12h (not to exceed 500 mg/dose) OR Levofloxacin <50 kg: 16 mg/kg/day, PO, divided q12h (not to exceed 250 mg/dose) =50 kg: 500 mg, PO, given q24h OR
- (b). Alternatives for penicillin-susceptible strains: Amoxicillin, 75 mg/kg/day, PO, divided q8h (not to exceed 1 g/dose) OR Penicillin VK, 50–75 mg/kg/day, PO, divided q6h-q8h AND
- 3.2.4.2 A protein synthesis inhibitor: Clindamycin 30 mg/kg/day, PO, divided q8h (not to exceed 600 mg/dose) OR Doxycycline <45 kg: 4.4 mg/kg/day, PO, divided q12h (not exceed 100 mg/dose) =45 kg: 100 mg, PO, given q12h OR Linezolid (non-CNS infection dose):
- <12 y old: 30 mg/kg/day, PO, divided q8h:::::: =12 years old: 30 mg/kg/day, PO, divided q12h (not to exceed 600 mg/dose)
- Note (1): Duration of therapy to complete a treatment course of 14 days or greater. May require prophylaxis to complete an antimicrobial course of up to 60 days from onset of illness.
- Note (2): Severe anthrax includes inhalation anthrax; injection, gastrointestinal, or cutaneous anthrax with systemic involvement, extensive edema, or lesions of the head or neck.
- Note (3): Bold font for preferred antimicrobial agent.
- Note (4): Normal font for alternative selections are listed in order of preference for therapy for patients who cannot take first-line therapy or if first-line therapy is unavailable.
- Note (5): Doses are provided for children with normal renal and hepatic function. Doses may vary for those with some degree of organ failure.
- Note (6): A single 14-day course of doxycycline is not routinely associated with tooth staining.
- Note (7): Linezolid should be used with caution in patients with thrombocytopenia, as it may exacerbate it. Linezolid use for >14 days carries additional hematopoietic toxicity.
- 3.2.5 Dosing in preterm and term neonates 32 to 44 Weeks postmenstrual Age (Gestational Age Plus Chronologic Age)
- 3.2.5.1 Triple therapy for severe anthrax(anthrax meningitis or disseminated infection and meningitis cannot be ruled out)
- 3.2.5.1.1 Bactericidal antimicrobial (fluoroquinolone) therapy
- 3.2.5.1.1.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Ciprofloxacin IV 20 mg/kg/day, divided q12h OR Moxifloxacin IV 5 mg/kg/day, q24h
- For 1–4 weeks of Age : Ciprofloxacin IV 20 mg/kg/day, divided q12h OR Moxifloxacin IV 5 mg/kg/day, q24h
- 3.2.5.1.1.2 For 34–37 week gestational age
- For 0–1 wk of Age : Ciprofloxacin IV 20 mg/kg/day, divided q12h OR Moxifloxacin IV 5 mg/kg/day, q24h
- For 1–4 wk of Age : Ciprofloxacin IV 20 mg/kg/day, divided q12h OR Moxifloxacin IV 5 mg/kg/day, q24h
- 3.2.5.1.1.3 Term Newborn Infant
- For 0–1 week of Age : Ciprofloxacin IV 30 mg/kg/day, divided q12h OR Moxifloxacin IV 10 mg/kg/day, q24h
- For 1–4 weeks of Age : Ciprofloxacin IV 30 mg/kg/day, divided q12h OR Moxifloxacin IV 10 mg/kg/day, q24h AND
- 3.2.5.1.2 A bactericidal antimicrobial (ß-lactam)
- 3.2.5.1.2.1 For all strains, regardless of penicillin susceptibility or if susceptibility is unknown:
- 3.2.5.1.2.1.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Meropenem IV 60 mg/kg/day, divided q8h OR Imipenem IV 50 mg/kg/day, divided q12h OR Doripenem IV 20 mg/kg/day, divided q12h
- For 1–4 wk of Age : Meropenem IV 90 mg/kg/day, divided q8h OR Imipenem IV 75 mg/kg/day, divided q8h OR Doripenem IV 30 mg/kg/day,divided q8h
- 3.2.5.1.2.1.2 For 34–37 week gestational age
- For 0–1 week of Age : Meropenem IV 60 mg/kg/day, divided q8h OR Imipenem IV 50 mg/kg/day, divided q12h OR Doripenem IV 20 mg/kg/day, divided q12h
- For 1–4 week of Age : Meropenem IV 90 mg/kg/day, divided q8h OR Imipenem IV 75 mg/kg/day, divided q8h OR Doripenem IV 30 mg/kg/day,divided q8h
- 3.2.5.1.2.1.3 Term Newborn Infant
- 3.2.5.1.2.2 Alternatives for penicillin-susceptible strains
- 3.2.5.1.2.2.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Penicillin G 200000 Units/kg/day divided q12h,OR Ampicillin 100 mg/kg/day divided q12h,
- For 1–4 week of Age : Penicillin G 300000 Units/kg/day divided q12h,OR Ampicillin 150 mg/kg/day divided q12h,
- 3.2.5.1.2.2.2 For 34–37 week gestational age
- For 0–1 week of Age : Penicillin G 300000 Units/kg/day divided q12h,OR Ampicillin 150 mg/kg/day divided q12h,
- For 1–4 week of Age : Penicillin G 400000 Units/kg/day divided q12h,OR Ampicillin 200 mg/kg/day divided q12h,
- 3.2.5.1.2.2.3 Term Newborn Infant
- For 0–1 week of Age : Penicillin G 300000 Units/kg/day divided q12h,OR Ampicillin 150 mg/kg/day divided q12h,
- For 1–4 week of Age : Penicillin G 400000 Units/kg/day divided q12h,OR Ampicillin 200 mg/kg/day divided q12h, AND
- 3.2.5.1.3 A protein synthesis inhibitor
- 3.2.5.1.3.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Linezolid 20 mg/kg/day,divided q12h, OR Clindamycin 10 mg/kg/day,divided q12h OR Rifampin 10 mg/kg/day,divided q12h , OR Chloramphenicol 25 mg/kg/day,q24h
- For 1–4 week of Age : Linezolid 30 mg/kg/day,divided q8h, OR Clindamycin 15 mg/kg/day,divided q8h OR Rifampin 10 mg/kg/day,divided q12h, OR Chloramphenicol 50 mg/kg/day,q12h
- 3.2.5.1.3.2 For 34–37 week gestational age
- For 0–1 week of Age : Linezolid 30 mg/kg/day,divided q8h, OR Clindamycin 15 mg/kg/day,divided q8h OR Rifampin 10 mg/kg/day,divided q12h, OR Chloramphenicol 25 mg/kg/day,q24h
- For 1–4 week of Age : Linezolid 30 mg/kg/day,divided q8h, OR Clindamycin 20 mg/kg/day,divided q6h OR Rifampin 10 mg/kg/day,divided q12h, OR Chloramphenicol 50 mg/kg/day,q12h
- 3.2.5.1.3.3 Term Newborn Infant
- For 0–1 week of Age : Linezolid 30 mg/kg/day,divided q8h, OR Clindamycin 15 mg/kg/day,divided q8h OR Rifampin 10 mg/kg/day,divided q12h, OR Chloramphenicol 25 mg/kg/day,q24h
- For 1–4 week of Age : Linezolid 30 mg/kg/day,divided q8h, OR Clindamycin 20 mg/kg/day,divided q6h OR {[Rifampin]] 20 mg/kg/day,divided q12h, OR Chloramphenicol 50 mg/kg/day,q12h
- Note :Duration of therapy For =2–3 week, until clinical criteria for stability are met. Will require prophylaxis to complete an antibiotic course of upto 60 days from onset of illness.
- 3.2.5.2 Therapy for severe anthrax when meningitis can be ruled out
- 3.2.5.2.1 A bactericidal antimicrobial
- 3.2.5.2.1.1 For all strains, regardless of penicillin susceptibility or if susceptibility is unknown
- 3.2.5.2.1.1.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Ciprofloxacin IV 20 mg/kg/day,divided q12h OR Meropenem IV 40 mg/kg/day,divided q8h OR Imipenem IV 40 mg/kg/day,divided q12h
- For 1–4 week of Age : Ciprofloxacin IV 20 mg/kg/day,divided q12h OR Meropenem IV 60 mg/kg/day,divided q8h OR Imipenem 50 mg/kg/day,divided q12h
- 3.2.5.2.1.1.2 For 34–37 week gestational age
- For 0–1 week of Age : Ciprofloxacin IV 20 mg/kg/day,divided q12h OR Meropenem IV 60 mg/kg/day,divided q8h OR Imipenem 50 mg/kg/day,divided q12h
- For 1–4 week of Age : Ciprofloxacin IV 20 mg/kg/day,divided q12h OR Meropenem IV 60 mg/kg/day,divided q8h OR Imipenem 75 mg/kg/day,divided q8h
- 3.2.5.2.1.1.3 Term Newborn Infant
- For 0–1 week of Age : Ciprofloxacin IV 30 mg/kg/day,divided q12h OR Meropenem IV 60 mg/kg/day,divided q8h OR Imipenem 50 mg/kg/day,divided q12h
- For 1–4 week of Age : Ciprofloxacin IV 30 mg/kg/day,divided q12h OR Meropenem IV 60 mg/kg/day,divided q8h OR Imipenem 75 mg/kg/day,divided q8h OR
- Vancomycin IV (dosing based on serum creatinine for infants =32 wk gestational age). Follow vancomycin serum concentrations to modify dose.
- If Serum creatinine <0.7 then Vancomycin IV 15 mg/kg/dose q12h
- If Serum creatinine 0.7 -0.9 then Vancomycin IV 20 mg/kg/dose q24h
- If Serum creatinine 1–1.2 then Vancomycin IV 15 mg/kg/dose q24h
- If Serum creatinine 1.3–1.6 then Vancomycin IV 10 mg/kg/dose q24h
- If Serum creatinine >1.6 15 then Vancomycin IV mg/kg/dose q48h
- Note : Begin treatment with a 20-mg/kg loading dose OR
- 3.2.5.2.1.2 Alternatives for penicillin-susceptible strains
- 3.2.5.2.1.2.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Penicillin G IV 200000 U/kg/day,divided q12h, OR Ampicillin IV 100 mg/kg/day,divided q12h
- For 1–4 week of Age : Penicillin G IV 300000 U/kg/day,divided q8h, OR Ampicillin IV 150 mg/kg/day,divided q8h
- 3.2.5.2.1.2.2 For 34–37 week gestational age
- For 0–1 week of Age : Penicillin G IV 300000 U/kg/day,divided q8h, OR Ampicillin IV 150 mg/kg/day,divided q8h
- For 1–4 week of Age : Penicillin G IV 400000 U/kg/day,divided q6h, OR Ampicillin IV 200 mg/kg/day,divided q6h
- 3.2.5.2.1.2.3 Term Newborn Infant
- For 0–1 week of Age : Penicillin G IV 300000 U/kg/day,divided q8h, OR Ampicillin IV 150 mg/kg/day,divided q8h
- For 1–4 week of Age : Penicillin G IV 400000 U/kg/day,divided q6h, OR Ampicillin IV 200 mg/kg/day,divided q6h AND
- 3.2.5.2.2 A protein synthesis inhibitor
- 3.2.5.2.2.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Clindamycin IV 10 mg/kg/day, divided q12h, OR Linezolid IV 20 mg/kg/day, divided q12h, OR Rifampin IV 10 mg/kg/day, q24h
- For 1–4 week of Age : Clindamycin IV 15 mg/kg/day, divided q8h, OR Linezolid IV 30 mg/kg/day, divided q8h, OR Rifampin IV 10 mg/kg/day, q24h
- 3.2.5.2.2.2 For 34–37 week gestational age
- For 0–1 week of Age : Clindamycin IV 15 mg/kg/day, divided q8h, OR Linezolid IV 30 mg/kg/day, divided q8h, OR Rifampin IV 10 mg/kg/day, q24h
- For 1–4 week of Age : Clindamycin IV 20 mg/kg/day, divided q6h, OR Linezolid IV 30 mg/kg/day, divided q8h, OR Rifampin IV 10 mg/kg/day, q24h
- 3.2.5.2.2.3 Term Newborn Infant
- For 0–1 week of Age : Clindamycin IV 15 mg/kg/day, divided q8h, OR Linezolid IV 30 mg/kg/day, divided q8h, OR Doxycycline IV 4.4 mg/kg/day, divided q12h, (loading dose 4.4 mg/kg) OR Rifampin IV 10 mg/kg/day, q24h
- For 1–4 week of Age : Clindamycin IV 20 mg/kg/day, divided q6h, OR Linezolid IV 30 mg/kg/day, divided q8h, OR Doxycycline IV 4.4 mg/kg/day, divided q12h, (loading dose 4.4 mg/kg) OR Rifampin IV 10 mg/kg/day, q24h
- Note: Duration of therapy: For =2–3 wk, until clinical criteria for stability are met (see text). Will require prophylaxis to complete an antimicrobial course of upto 60 days from onset of illness
- 3.2.5.3 Oral follow-up combination therapy for severe anthrax
- 3.2.5.3.1 A bactericidal antimicrobial
- 3.2.5.3.1.1 For all strains, regardless of penicillin susceptibility or if susceptibility is unknown
- 3.2.5.3.1.1.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Ciprofloxacin PO 20 mg/kg/day, divided q12h
- For 1–4 week of Age : Ciprofloxacin PO 20 mg/kg/day, divided q12h
- 3.2.5.3.1.1.2 For 34–37 week gestational age
- For 0–1 week of Age : Ciprofloxacin PO 20 mg/kg/day, divided q12h
- For 1–4 week of Age : Ciprofloxacin PO 20 mg/kg/day, divided q12h
- 3.2.5.3.1.1.3 Term Newborn Infant
- For 0–1 week of Age : Ciprofloxacin PO 30 mg/kg/day, divided q12h
- For 1–4 week of Age : Ciprofloxacin PO 30 mg/kg/day, divided q12h OR
- 3.2.5.3.1.2 Alternatives for penicillin-susceptible strains
- 3.2.5.3.1.2.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Amoxicillin PO 50 mg/kg/day, divided q12h, OR Penicillin VK PO 50 mg/kg/day, divided q12h
- For 1–4 week of Age : Amoxicillin PO 75 mg/kg/day, divided q8h OR Penicillin VK PO 75 mg/kg/day, divided q8h
- 3.2.5.3.1.2.2 For 34–37 week gestational age
- For 0–1 week of Age : Amoxicillin PO 50 mg/kg/day, divided q12h OR Penicillin VK PO 50 mg/kg/day, divided q12h
- For 1–4 week of Age : Amoxicillin PO 75 mg/kg/day, divided q8h OR Penicillin VK PO 75 mg/kg/day, divided q8h
- 3.2.5.3.1.2.3 Term Newborn Infant
- For 0–1 week of Age : Amoxicillin PO 75 mg/kg/day, divided q8h OR Penicillin VK PO 75 mg/kg/day, divided q8h
- For 1–4 week of Age : Amoxicillin PO 75 mg/kg/day, divided q8h OR Penicillin VK PO 75 mg/kg/day, divided q6–8h AND
- 3.2.5.3.2 A protein synthesis inhibitor
- 3.2.5.3.2.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Clindamycin PO 10 mg/kg/day, divided q12h OR Linezolid PO 20 mg/kg/day, divided q12h
- For 1–4 week of Age : Clindamycin PO 15 mg/kg/day, divided q8h OR Linezolid PO 30 mg/kg/day, divided q8h
- 3.2.5.3.2.2 For 34–37 week gestational age
- For 0–1 week of Age : Clindamycin PO 15 mg/kg/day, divided q8h OR Linezolid PO 30 mg/kg/day, divided q8h
- For 1–4 week of Age : Clindamycin PO 20 mg/kg/day, divided q6h OR Linezolid PO 30 mg/kg/day, divided q8h
- 3.2.5.3.2.3 Term Newborn Infant
- For 0–1 week of Age : Clindamycin PO 15 mg/kg/day, divided q8h OR Doxycycline PO 4.4 mg/kg/day, divided q12h (loading dose 4.4 mg/kg) OR Linezolid PO 30 mg/kg/day, divided q8h
- For 1–4 week of Age :Clindamycin PO 20 mg/kg/day, divided q6h OR Doxycycline PO 4.4 mg/kg/day, divided q12h (loading dose 4.4 mg/kg) OR Linezolid PO 30 mg/kg/day, divided q8h OR
- Note: Duration of therapy: to complete a treatment course of 10–14 days or greater. May require prophylaxis to complete an antimicrobial course of upto 60 days from onset of illness.
- 3.2.5.4 Treatment of cutaneous anthrax without systemic involvement
- 3.2.5.4.1 For all strains, regardless of penicillin susceptibility or if susceptibility is unknown
- 3.2.5.4.1.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Ciprofloxacin PO 20 mg/kg/day, divided q12h OR Clindamycin PO 10 mg/kg/day, divided q12h
- For 1–4 week of Age : Ciprofloxacin PO 20 mg/kg/day, divided q12h OR Clindamycin PO 15 mg/kg/day, divided q8h
- 3.2.5.4.1.2 For 34–37 week gestational age
- For 0–1 week of Age : Ciprofloxacin PO 20 mg/kg/day, divided q12h OR Clindamycin PO 15 mg/kg/day, divided q8h
- For 1–4 week of Age : Ciprofloxacin PO 20 mg/kg/day, divided q12h OR Clindamycin PO 20 mg/kg/day, divided q6h
- 3.2.5.4.1.3 Term Newborn Infant
- For 0–1 week of Age : Ciprofloxacin PO 30 mg/kg/day, divided q12h OR Doxycycline PO 4.4 mg/kg/day, divided q12h (Loading dose 4.4 mg/kg) OR Clindamycin PO 15 mg/kg/day, divided q8h
- For 1–4 week of Age : Ciprofloxacin PO 30 mg/kg/day, divided q12h OR Doxycycline PO 4.4 mg/kg/day, divided q12h (Loading dose 4.4 mg/kg) OR Clindamycin PO 20 mg/kg/day, divided q6h
- 3.2.5.4.2 Alternatives for penicillin-susceptible strains
- 3.2.5.4.2.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Amoxicillin PO 50 mg/kg/day, divided q12h OR Penicillin Vk PO 50 mg/kg/day, divided q12h
- For 1–4 week of Age : Amoxicillin PO 75 mg/kg/day, divided q8h OR Penicillin Vk PO 75 mg/kg/day, divided q8h
- 3.2.5.4.2.2 For 34–37 week gestational age
- For 0–1 week of Age : Amoxicillin PO 50 mg/kg/day, divided q12h OR Penicillin Vk PO 50 mg/kg/day, divided q12h
- For 1–4 week of Age : Amoxicillin PO 75 mg/kg/day, divided q8h OR Penicillin Vk PO 75 mg/kg/day, divided q8h
- 3.2.5.4.2.3 Term Newborn Infant
- For 0–1 week of Age : Amoxicillin PO 75 mg/kg/day, divided q8h OR Penicillin Vk PO 75 mg/kg/day, divided q8h
- For 1–4 week of Age : Amoxicillin PO 75 mg/kg/day, divided q8h OR Penicillin Vk PO 75 mg/kg/day, divided q6–8h
- Note : Duration of therapy for naturally acquired infection is 7–10 days and for a biological weapon–related event,may require additional prophylaxis for inhaled spores to complete an antimicrobial course of up to 60 days from onset of illness.
- Bacillus anthracis, postexposure prophylaxis
- 1. For adults[25]
- 1.1 For all strains, regardless of penicillin susceptibility or if susceptibility is unknown: Ciprofloxacin, 500 mg q12h OR Doxycycline, 100 mg q12h OR Levofloxacin, 750 mg q24h OR Moxifloxacin, 400 mg q24h OR Clindamycin, 600 mg q8h OR
- 1.2 Alternatives for penicillin-susceptible strain: Amoxicillin 1 g q8h OR Penicillin VK 500 mg q6h
- Note (1): Preferred drugs are indicated in boldface.
- Note (2): Alternative drugs are listed in order of preference for treatment for patients who cannot take first-line treatment or if first-line treatment is unavailable.
- 2. For children = 1 month[27]
- 2.1 For penicillin-resistant strains or prior to susceptibility testing: Ciprofloxacin, 30 mg/kg/day, by mouth (PO), divided q12h (not to exceed 500 mg/dose) OR Doxycycline, <45 kg: 4.4 mg/kg/day, PO, divided q12h (not to exceed 100 mg/dose) >45 kg: 100 mg/dose, PO, given q12h OR Clindamycin, 30 mg/kg/day, PO, divided q8h (not to exceed 900 mg/dose) OR Levofloxacin, <50 kg: 16 mg/kg/day, PO, divided q12h (not to exceed 250 mg/dose) >50 kg: 500 mg, PO, given q24h OR
- 2.2 For penicillin-susceptible strains: Amoxicillin, 75 mg/kg/day, PO, divided every q8h (not to exceed 1 g/dose) OR Penicillin VK, 50-75 mg/kg/day, PO, divided q6h to q8h
- Note (1) : Duration of Therapy is 60 days after exposure
- Note (2) : Bold font are preferred antimicrobial agent (when 2 bolded antimicrobial agents are present, both are considered equivalent in overall safety and efficacy).
- Note (3) : Normal font are alternative selections are listed in order of preference for therapy for patients who cannot take first-line therapy or if first-line therapy is unavailable.
- Note (4) : Doses are provided for children with normal renal and hepatic function. Doses may vary for those with some degree of organ failure.
- Note (5) : Italicized font: indicates FDA approval for the indication in the pediatric population.
- Note (6) : A single 14-day course of doxycycline is not routinely associated with tooth staining, but some degree of staining is likely for a prolonged treatment course of up to 60 days.
- Note (7) : Safety data for Levofloxacin in the pediatric population are limited to 14 days for duration therapy.
- Note (8) : Be aware of the possibility of emergence of penicillin-resistance during monotherapy with Amoxicillin or Penicillin.
- 3. For children < 1 month
- 3.1 For all strains, regardless of penicillin susceptibility or if susceptibility is unknown
- 3.1.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Ciprofloxacin PO 20 mg/kg/day, divided q12h OR Clindamycin PO 10 mg/kg/day, divided q12h
- For 1–4 week of Age : Ciprofloxacin PO 20 mg/kg/day, divided q12h OR Clindamycin PO 15 mg/kg/day, divided q8h
- 3.1.2 For 34–37 week gestational age
- For 0–1 week of Age : Ciprofloxacin PO 20 mg/kg/day, divided q12h OR Clindamycin PO 15 mg/kg/day, divided q8h
- For 1–4 week of Age : Ciprofloxacin PO 20 mg/kg/day, divided q12h OR Clindamycin PO 20 mg/kg/day, divided q6h
- 3.1.3 Term Newborn Infant
- For 0–1 week of Age : Ciprofloxacin PO 30 mg/kg/day, divided q12h OR Doxycycline PO 4.4 mg/kg/day, divided q12h (Loading dose 4.4 mg/kg) OR Clindamycin PO 15 mg/kg/day, divided q8h
- For 1–4 week of Age : Ciprofloxacin PO 30 mg/kg/day, divided q12h OR Doxycycline PO 4.4 mg/kg/day, divided q12h (Loading dose 4.4 mg/kg) OR Clindamycin PO 20 mg/kg/day, divided q6h OR
- 3.2 Alternatives for penicillin-susceptible strains
- 3.2.1 For 32–34 weeks gestational age
- For 0–1 week of Age : Amoxicillin PO 50 mg/kg/day, divided q12h OR Penicillin Vk PO 50 mg/kg/day, divided q12h
- For 1–4 week of Age : Amoxicillin PO 75 mg/kg/day, divided q8h OR Penicillin Vk PO 75 mg/kg/day, divided q8h
- 3.2.2 For 34–37 week gestational age
- For 0–1 week of Age : Amoxicillin PO 50 mg/kg/day, divided q12h OR Penicillin Vk PO 50 mg/kg/day, divided q12h
- For 1–4 week of Age : Amoxicillin PO 75 mg/kg/day, divided q8h OR Penicillin Vk PO 75 mg/kg/day, divided q8h
- 3.2.3 Term Newborn Infant
- For 0–1 week of Age : Amoxicillin PO 75 mg/kg/day, divided q8h OR Penicillin Vk PO 75 mg/kg/day, divided q8h
- For 1–4 week of Age : Amoxicillin PO 75 mg/kg/day, divided q8h OR Penicillin Vk PO 75 mg/kg/day, divided q6–8h
- Note: Duration of therapy is 60 days from exposure
- Bacillus cereus
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- Bacillus cereus [28]
- 1. Food poisoning
- Preferred treatment: Food poisoning is self-limited, no antibiotics necessary. Treatment is Supportive therapy, hydration, and anti-emetics. Prevention is by fried/boiled rice should be maintained >60° C or rapidly cooled <8 ° C to avoid room temperature germination of spores and toxin.
- Note (1): Bacillus cereus with two forms.(a) Emetic phase: 1-6 hrs after ingestion contaminated usually starchy food, e.g., fried rice. (b) Diarrheal phase: 10-12 hrs after eating e.g. tainted meats, milk, vegetables, etc. with watery diarrhea, tenesmus lasting <2-10 days.
- 2. Bacteremia
- Preferred regimen: Vancomycin 15 mg/kg IV q12h.
- Alternative regimen: Clindamycin 600 mg IV q8h
- Note (1): Bacillus cereus often resistant to beta-lactams.
- Note (2): Uncommon, may complicate mixed infections including surgical wounds or infected necrotic tumors.
- Note (3): Source of pseudobacteremia is contaminated blood cultures, gloves, syringes, etc. Often transient bacteremia of no significance in intravenous drug user population.
- 3. Meningitis, brain abscess
- Preferred regimen: Vancomycin 15 mg/kg IV q12h.
- Alternative regimen: Clindamycin 600 mg IV q8h.
- Note (1): Blood culture isolates are mostly contaminates until proven otherwise, especially in intravenous drug user population.
- Note(2): Uncommon presentations, may complicate otitis, mastoiditis, neurosurgical procedures, and shunts.
- 4. Endophthalmitis
- Preferred regimen: Clindamycin 450 mcg intravitreal AND Gentamicin 400 mcg intravitreal OR Dexamethasone intravitreal AND Vancomycin 15 mg/kg IV q12h.
- Alternative regimen: Clindamycin 600 mg IV q8h
- Note (1): Prognosis for sight retention poor.
- Note (2): Rapid, massive destruction of vitreous/retina in intravenous drug user or posttraumatic with ringabscess within 48 hrs. Pathognomic Bacillus cereus panophthalmitis.
- Note (3): Early ophthalmological consultation, culture ocular fluids. Early vitrectomy and intravitreal antibiotics is advocated.
- Note (4): Ocular infections devastating and require quick intervention.
- Note (5): primary pathogen of post-traumatic , risk factor also intravenous drug use. May also cause keratitis, orbital abscess, conjunctivitis, dacryocystitis.
- 5. Endocarditis
- Preferred regimen: Vancomycin 15 mg/kg IV q12h OR Clindamycin 600 mg IV q8h.
- Note (1): Well-described but rare complication seen in intravenous drug user . Most blood cultures in intravenous drug user positive for bacillus are contaminates or represent transient bacteremia.
- Note (2): Evidence of valvular involvement should be sought by echocardiography to prove endocarditis. Tricuspid valve involvement most common. Course indolent.
- Note (3): Tricuspid valve endocarditis mostly indolent in nature.
- 6. Soft tissue
- Preferred regimen: Vancomycin 15 mg/kg IV q12h.
- Alternative regimen: Clindamycin 600 mg IV q8h.
- note: rare reports of fasciitis.
- 7. Pneumonia
- Preferred regimen: Vancomycin 15 mg/kg IV q12h.
- Alternative regimen: Clindamycin 600 mg IV q8h.
- Note: rare pathogen of compromised host. May mimic Bacillus anthracis-type presentation.
- Bacillus subtilis
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-
- 1. Food poisoning
- Preferred regimen: supportive treatment
- 2. Other infections
- Preferred regimen: Vancomycin OR Clindamycin
- Alternative regimen: Ciprofloxacin OR Imipenem
- Note: Distinguish clinically significant infection from contamination before administering antibiotics.
- Clostridium botulinum
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- 1.Antitoxin [32]
- Preferred regimen: Trivalent antitoxin (A 7,500 IU, B 5,000 IU, and E 5,000 IU) 1 vial diluted 1:10, IV infusion over 30 min
- Alternative regimen: Equine antitoxin
- 2.General Therapy
- Preferred regimen: Mechanical ventilation; IV hydration; tube feedings
- Clostridium difficile
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- Clostridium perfringens
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- Clostridium perfringens [33]
- Preferred regimen: Penicillin G ± Clindamycin
- Alternative regimen: Doxycycline
- Clostridium tetani
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- 1. General measures
- Preferred regimen: Patients should be placed in a quiet shaded area and protected from tactile and auditory stimulation as much as possible; All wounds should be cleaned and debrided as indicated
- 2. Immunotherapy
- Preferred regimen: Human TIG 500 units by intramuscular injection or intravenously as soon as possible AND Age-appropriate TT-containing vaccine, 0.5 cc by intramuscular injection at a separate site
- NOTE: patients without a history of primary TT vaccination should receive a second dose 1–2 months after the first dose and a third dose 6–12 months later
- 3. Antibiotic treatment
- Preferred regimen: Metronidazole 500 mg intravenously or orally every six hours OR Penicillin G 100,000–200,000 IU/kg/day intravenously, given in 2–4 divided doses
- Alternative regimen: Tetracyclines OR Macrolides OR Clindamycin OR Cephalosporins OR Chloramphenicol
- 4. Muscle spasm control
- Preferred regimen: Diazepam 5 mg intravenous OR Lorazepam 2 mg titrating to achieve spasm control without excessive sedation and hypoventilation
- Alternative regimen (1): Magnesium sulphate 5 gm (or 75mg/kg) intravenous loading dose, then 2–3 grams per hour until spasm control is achieved ± Benzodiazepines
- NOTE: Monitor patellar reflex as areflexia (absence of patellar reflex) occurs at the upper end of the therapeutic range (4mmol/L). If areflexia develops, dose should be decreased
- Alternative regimen (2): Baclofen OR Dantrolene 1–2 mg/kg intravenous/orally every 4 hours
- Alternative regimen (3): Barbiturates 100–150 mg every 1–4 hours by any route
- Alternative regimen (4): Chlorpromazine 50–150 mg by intramuscular injection every 4–8 hours
- Pediatric regimen: Lorazepam 0.1–0.2 mg/kg every 2–6 hours, titrating upward as needed; Barbiturates 6–10 mg/kg in children by any route; Chlorpromazine 4–12 mg every by intramuscular injection every 4–8 hours
- NOTE: As for Benzodiazepines, large amounts may be required (up to 600 mg/day); Oral preparations could be used but must be accompanied by careful monitoring to avoid respiratory depression or arrest
- 5. Autonomic dysfunction control
- Corynebacterium diphtheriae
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- 1.Diphtheria treatment[34]
- 1.1 Antitoxin
- Preferred regimen: 20,000-40,000 U pharyngeal disease <48 hrs; 40-60,000 U nasopharyngeal; 80-120,000 U for extensive disease, brawny neck or sx >72 hrs; Adiminister IV (severe disease) or IM
- 1.2 Antibiotics:
- Preferred regimen: Procaine Penicillin G (<20 lbs: 300,000 U; >20 lbs: 600,000 U) IM q12h until patient can swallow then Penicillin VK 125-250 mg PO QID OR Erythromycin 125-500 mg PO QID for 14 days total.
- Alternative regimen (1): Erythromycin 20-25mg/kg IV q6h (max 4g/day; β-lactam allergic patients)
- Alternative regimen (2): Clindamycin 600 mg IV q8h
- 2.C. diphtheriae carrier
- Preferred regimen: Erythromycin 250-500 mg PO QID
- Alternative regimen: Benzathine Penicillin G 600,000-1,200,000 units IM single dose
- 3.Endocarditis treatment
- Preferred regimen: Penicillin G OR Ampicillin IV for 4-6 weeks ± Aminoglycoside
- Corynebacterium jeikeium
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- Corynebacterium urealyticum
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- Coxiella burnetii
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- Q fever [35]
- 1.Acute Q fever
- 1.1 Adults
- Preferred Regimen: DoxycyclinePO 100 mg bid for 14 days
- 1.2 Children
- 1.2.1Children with age ≥8 years:
- Preferred regimen:Doxycycline PO 2.2 mg/kg per dose bid for 14 days (maximum 100 mg per dose)
- 1.2.2 children with age <8 years with high risk criteria
- Preferred regimen:Doxycycline PO 2.2 mg/kg per dose bid for 14 days (maximum: 100 mg per dose)
- 1.2.3 children with age <8 years with mild or uncomplicated illness
- Preferred regimen:Doxycycline PO 2.2 mg/kg per dose bid for 5 days (maximum 100 mg per dose). If patient remains febrile past 5 days of treatment: Trimethoprim/Sulfamethoxazole 4-20 mg/kg bid for 14 days (maximum: 800 mg per dose)
- 1.3 Pregnant women
- Preferred regimen: Trimethoprim/Sulfamethoxazole PO 160 mg/800 mg bid a day throughout pregnancy
- 2. Chronic Q fever
- 2.1 Endocarditis or vascular infection
- Preferred regimen:Doxycycline PO 100 mg bid and Hydroxychloroquine PO 200 mg tid for ≥18 months
- Note: childern and pregnant women- consultation Recommended
- 2.2 Noncardiac organ disease
- Preferred regimen: Doxycycline PO 100 mg bid and Hydroxychloroquine PO 200 mg tid
- Note: childern and pregnant women- consultation Recommended
- 2.3 Postpartumwith serologic profile for chronic Q fever
- Preferred regimen:Doxycycline PO 100 mg bid and Hydroxychloroquine PO 200 mg tid for 12 months
- Note: Women should only be treated postpartum if serologic titers remain elevated >12 months after delivery (immunoglobulin G phase I titer ≥1:1024). Women treated during pregnancy for acute Q fever should be monitored similarly to other patients who are at high risk for progression to chronic disease (e.g., serologic monitoring at 3, 6, 12, 18, and 24 months after delivery)
- Note:Post-Q fever fatigue syndrome- no current recommendation
- Ehrlichia
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- 1. Human Monocytic Ehrlichiosis or Human Granulocytic Anaplasmosis (adult) [36]
- Preferred regimen: Doxycycline 100 mg PO/IV q12h for 7-14 days
- NOTE: Patients should be treated for at least 3 days after the fever subsides and until there is evidence of clinical improvement
- Alternative regimen: Chloramphenicol 500mg QID OR Rifampin 600 mg PO/IV daily for 7-10 days
- 2. Human Monocytic Ehrlichiosis or Human Granulocytic Anaplasmosis (pediatric)
- 2.1 ≥8 years old
- Preferred regimen: Doxycycline 2 mg/kg IV/PO q12h (max 200 mg/day) for 10 days
- 2.2 <8 years old without Lyme disease
- Preferred regimen: Doxycycline 2 mg/kg IV/PO q12h (max 200 mg/day) for 4-5 days (or 3 days after resolution of fever)
- 2.3 co-infected with Lyme disease
- Preferred regimen: At the conclusion of Doxycycline then give Amoxicillin 50 mg/kg in 3 divided doses (max 500 mg/dose) OR Cefuroxime 30 mg/kg in 2 divided doses (max 500 mg/dose) for 14 days
- Erysipelothrix rhusiopathiae
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- 1. Erysipeloid of Rosenbach (localized cutaneous infection)[37]
- Preferred regimen (1): Penicillin G benzathine 1.2 MU IV as a single dose
- Preferred regimen (2): Penicillin VK 250 mg PO qid for 5-7 days
- Preferred regimen (3): Procaine penicillin 0.6-1.2 MU IM qd for 5-7 days
- Alternative regimen (1): Erythromycin 250 mg PO qid for 5-7 days
- Alternative regimen (2): Doxycycline 100 mg PO bid for 5-7 days
- 2. Diffuse cutaneous infection
- Preferred regimen: As for localized infection
- Note: Assess for endocarditis
- 3. Bacteremia or endocarditis
- Preferred regimen: Penicillin G benzathine 2-4 MU IV q4h for 4-6 weeks
- Alternative regimen (1): Ceftriaxone 2 g IV q24h for 4-6 weeks
- Alternative regimen (2): Imipenem 500 mg IV q6h for 4-6 weeks
- Alternative regimen (3): Ciprofloxacin 400 mg IV q12h for 4-6 weeks
- Alternative regimen (4): Daptomycin 6 mg/kg IV q24h for 4-6 weeks
- Note: Recommended duration of therapy for endocarditis is 4 to 6 weeks, although shorter courses consisting of 2 weeks of intravenous therapy followed by 2 to 4 weeks of oral therapy have been successful.
- Listeria monocytogenes
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- 1. Meningitis [38]
- Preferred regimen: Ampicillin 2g IV q4-6h ± Gentamicin 1.7 mg/kg IV q8h for more than 3 weeks
- Alternative regimen: TMP-SMX 3-5 mg/kg (trimethoprim) q6h IV for more than 3 weeks
- 2. Bacteremia
- Preferred regimen: Ampicillin 2g IV q4-6h ± Gentamicin 1.7 mg/kg IV q8h for 2 weeks
- Alternative regimen: TMP-SMX 3-5 mg/kg (trimethoprim) q6h IV for 2 weeks
- 3. Brain abscess or rhomboencephalitis
- Preferred regimen: Ampicillin 2g IV q4-6h ± Gentamicin 1.7 mg/kg IV q8h for 4-6 weeks
- Alternative regimen: TMP-SMX 3-5 mg/kg (trimethoprim) q6h IV for 4-6 weeks
- 4. Gastroenteritis
- Preferred regimen: Amoxicillin OR TMP-SMX for 7 days
- Lactobacillus
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- 1. Endovascular Infection [39]
- Preferred regiemn (1): Penicillin G 20 Million units/day for 6 weeks
- Preferred regiemn (2): Gentamicin 1.3 mg/kg IV q8h (trough <1.5 mg/L) AND Polychlorinated naphthalene
- 2. Odontogenic Infection
- Preferred regiemn: Clindamycin 450 mg PO q6h
- 3. Intrabdominal Abscess
- Preferred regiemn: Clindamycin 450 mg PO q6h
- Leuconostoc
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- Preferred regimen: Penicillin G OR Ampicillin
- Alternative regimen: Clindamycin OR Erythromycin OR Minocycline
- Nocardia
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- 1. Sulfonamide-based therapies [40]
- 1.1 Pulmonary
- Preferred regimen: TMP-SMX 10 mg/kg/day (TMP) in 2-4 doses IV for 3-6 weeks, then PO (2 DS BID) for >5 months
- 1.2 Pulmonary alternatives
- Preferred regimen: Sulfisoxazole OR Sulfadiazine OR Trisulfapyrimidine 3-6 g/day PO 2- 4 doses OR TMP-SMX 2 DS twice daily up to 2 DS TID
- 1.3 CNS (AIDS, severe or disseminated disease)
- Preferred regimen: TMP-SMX 15 mg/kg/day (TMP) IV for 3-6 weeks, then PO (3 DS BID) for 6-12 months
- 1.4 CNS alternatives
- Preferred regimen: Imipenem 1000 mg IV q8h OR Ceftriaxone 2 g IV q12h OR Cefotaxime 2-3 g IV q6h AND Amikacin
- 1.5 Severe disease, compromised host, multiple sites
- Preferred regimen: TMP-SMX IV (above doses) AND Amikacin 7.5 mg/kg q12h (adjust per levels) OR Sulfonamide PO 6-12 m/day
- 1.6 Sporotrichoid (cutaneous)
- Preferred regimen: TMP-SMX 1 DS BID for 4-6 months
- NOTE(1): Immunocompetent medicine use for 6 months; Immunosuppressed medicine for 12 months
- NOTE(2): Treat based on host, site of disease and in vitro activity; Sulfonamide usually preferred, must treat for 6-12 months; Preferred drugs for resistant strains are Amikacin and/or Imipenem
- NOTE(3): Seriously ill usually treated with IV Imipenem or Sulfonamide or Cefotaxime all potentially combined with Amikacin; less seriously ill treated with oral agents— especially TMP-SMX or Minocycline
- 2. Sulfonamide alternatives
- 2.1 Severe
- Preferred regimen(1): (AIDS) (Imipenem 1000mg IV q8h OR Meropenem (CNS) 2g q8h) AND Amikacin 7.5 mg/kg q12h IV
- Preferred regimen(2): Cefotaxime 2-3g q6-8h OR Ceftriaxone 2 g/day IV ± Amikacin
- 2.2 Mild
- Preferred regimen: Minocycline 100 mg BID for > 6 months (initial treatment of local disease or maintenance)
- Alternative regimen: Amoxicillin/Clavulanate 875/125 mg BID OR Doxycycline OR Erythromycin OR Clarithromycin OR Linezolid OR Fluoroquinolone OR combinations for >6 months
- Propionibacterium acnes
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- 1. Systemic infection[41]
- Preferred regimen: Penicillin G 2 MU IV q4h for 2-4 weeks
- Alternative regimen: Clindamycin 600 mg IV q8h for 2-4 weeks OR Vancomycin 15 mg/kg IV q12h for 2-4 weeks
- 2. Shoulder prosthesis infection
- Preferred regimen: Amoxicillin AND Rifampin for 3-6 months
- 3. Acne vulgaris
- 3.1 Topical antibiotics: Erythromycin OR Clindamycin
- 3.2 Systemic antibiotics: Minocycline OR Doxycycline OR Trimethoprim-Sulfamethoxazole
- Rhodococcus equi
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- Rhodococcus equi [42]
- 1. Preferred regimen:
- 1.1 First line: vancomycin 1 g IV q12h (15 mg/kg q12 for >70 kg) OR Imipenem 500 mg IV q6h AND Rifampin 600 mg PO once daily OR Ciprofloxacin 750 mg PO twice daily OR Erythromycin 500 mg PO four times a day for at least 4 weeks or until infiltrate disappears (at least 8 weeks in immunocompromised patients)
- 1.2 Oral/maintenance therapy (after infiltrate clears): Ciprofloxacin 750 mg PO twice daily OR Erythromycin 500 mg PO four times a day
- 2. Alternative regimen: Azithromycin OR TMP-SMX OR Chloramphenicol OR Clindamycin
- NOTE: Avoid Penicillins/Cephalosporins due to development of resistance; Linezolid effective in vitro, but no clinical reports of use
- Rickettsia prowazekii
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- Rickettsia rickettsii
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- Rickettsia rickettsii [43]
- Preferred regimen: Doxycycline 200 mg load (severe disease) and then 100 mg PO/IV BID for 3-7 days after defervescence
- Alternative regimen: Chloramphenicol 500 mg PO QID for 3-7 days after defervescence
- Pediatric regimen: Doxycycline 2-4 mg/kg/day (up to 200 mg/day) q12h OR Tetracycline 25-50 mg/kg/day PO in 4 divided doses OR Chloramphenicol 50-75 mg/kg/day PO in 4 divided doses
- Rickettsia typhi
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Bacteria – Gram-Negative Cocci and Coccobacilli
- Aggregatibacter aphrophilus
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- Bordetella pertussis
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- Brucella* 1.Uncomplicated brucellosis in adults and children ≥8yrs of age [44], [45]
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- Preferred regimen: Doxycycline 100 mg PO bid for 6 weeks AND Streptomycin 1 g/day IM for 2-3 weeks
- Alternative regimen (1): Doxycycline 100 mg/day PO for six weeks ANDGentamicin 5mg/kg IM for 7-days
- Alternative regimen (2): Gentamicin 5mg/kg/dayIV/ IM for 7-10 days AND Rifampicin 600–900 mg/day PO for six weeks
- 2.Complications of brucellosis
- 2.1Spondylitis
- Preferred regimen:Doxycycline for 3 months AND Streptomycin for 2 to 3 weeks.
- 2.2 Neurobrucellosis
- Preferred regimen: Ceftriaxone 2 mg IV bid for 1 month AND Doxycycline 100 mg PO bid for 4-5 month AND Rifampicin 600–900 mg/day PO for 4-5 month
- 2.3 Brucella endocarditis
- Preferred regimen: Doxycycline AND an Aminoglycoside for at least 8 weeks, and therapy should be continued for several weeks after surgery when valve replacement is necessary
- NOTE: Rifampicin OR Trimethoprim/sulfamethoxazole are used for their ability to penetrate cell membranes
- 3. Pregnancy
- Preferred regimen:Rifampin 900 mg PO qd for 6 weeks
- NOTE: Adding Trimethoprim-sulfamethoxazole can be considered, but this option should probably be avoided preceding the 13th week and after the 36th week of gestation because of concern about teratogenicity and kernicterus.
- 4.For children < 8 yrs of age
- Preferred regimen: TMP/SMZ 8/40 mg/ kg/day bid PO for 6 weeks AND Streptomycin 30 mg/kg/day IM qd for 3 weeks OR Gentamicin 5 mg/kg/day IM/ IV qd for 7-10 days
- Alternative regimen (1): TMP/SMZ AND Rifampicin 15 mg/kg/day PO for 6 weeks
- Alternative regimen (2): Rifampicin AND an Aminoglycoside
- Eikenella corrodens
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- 1. Human bite/soft tissue infections [46]
- 1.1 Severe
- Preferred regimen: Ampicillin/Sulbactam 1.5-3 g IV q6h
- Alternative regimen: Doxycycline 100 mg IV BID OR Moxifloxacin 400 mg IV OD OR Levofloxacin 500 mg IV OD
- 1.2 Mild
- Preferred regimen: Amoxicillin/Clavulanate 250-500 mg TID or 875/125 mg PO BID
- Alternative regimen: Doxycycline 100 mg PO BID OR Moxifloxacin 400 mg PO OD OR Levofloxacin 500 mg PO OD
- 2. Head and neck infections
- 2.1 Severe
- Preferred regimen: Ampicillin/Sulbactam 1.5-3 g IV q6h
- Alternative regimen: Doxycycline 100 mg IV BID OR Moxifloxacin 400 mg IV OD OR Levofloxacin 500 mg IV OD
- 2.2 Mild
- Preferred regimen: Amoxicillin/Clavulanate 250-500 mg TID or 875/125 mg PO BID
- Alternative regimen: Doxycycline 100 mg PO BID OR Moxifloxacin 400 mg PO OD OR Levofloxacin 500 mg PO OD
- 3. Endocarditis
- Preferred regimen: Ceftriaxone 1g IV q12h OR Cefotaxime 1-2 g IV q8h OR Cefepime 1-2g IV q8h
- Haemophilus ducreyi
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- Chancroid Treatment [47]
- Preferred Regimen: Azithromycin 1 g PO in a single dose OR Ceftriaxone 250 mg IM in a single dose OR Ciprofloxacin 500 mg PO bid for 3 days OR Erythromycin base 500 mg PO three tid for 7 days
- Note(1): Regardless of whether symptoms of the disease are present, sex partners of patients who have chancroid should be examined and treated if they had sexual contact with the patient during the 10 days preceding the patient’s onset of symptoms.
- Note(2):Persons with HIV infection might require repeated or longer courses of therapy, and treatment failures can occur with any regimen.
- Haemophilus influenzae
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- Neisseria gonorrhoeae
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- Neisseria gonorrhoeae, treatment[48]
- 1. Gonococcal infections in adolescents and adults
- 1.1 Uncomplicated gonococcal infections of the cervix, urethra, and rectum
- Preferred regimen: Ceftriaxone 250 mg IM in a single dose AND Azithromycin 1 g PO in a single dose
- Alternative regimen: Cefixime 400 mg PO in a single dose AND Azithromycin 1 g PO in a single dose (if ceftriaxone is not available)
- 1.2 Uncomplicated gonococcal infections of the pharynx
- Preferred regimen: Ceftriaxone 250 mg IM in a single dose AND Azithromycin 1 g PO in a single dose
- 1.2.1 Management of sex partners
- Expedited partner therapy: Cefixime 400 mg PO in a single dose AND Azithromycin 1 g PO in a single dose
- Note (1): Recent sex partners (i.e., persons having sexual contact with the infected patient within the 60 days preceding onset of symptoms or gonorrhea diagnosis) should be referred for evaluation, testing, and presumptive dual treatment.
- Note (2): If the patient’s last potential sexual exposure was >60 days before onset of symptoms or diagnosis, the most recent sex partner should be treated.
- Note (3): To avoid reinfection, sex partners should be instructed to abstain from unprotected sexual intercourse for 7 days after they and their sexual partner(s) have completed treatment and after resolution of symptoms, if present.
- 1.2.2 Allergy, intolerance, and adverse reactions
- Preferred regimen (1): Gemifloxacin 320 mg PO in a single dose AND Azithromycin 2 g PO in a single dose
- Preferred regimen (2): Gentamicin 240 mg IM in a single dose AND Azithromycin 2 g PO in a single dose
- Note: Use of ceftriaxone or cefixime is contraindicated in persons with a history of an IgE-mediated penicillin allergy (e.g., anaphylaxis, Stevens Johnson syndrome, and toxic epidermal necrolysis).
- 1.2.3 Pregnancy
- Preferred regimen: Ceftriaxone 250 mg IM in a single dose AND Azithromycin 1 g PO in a single dose
- 1.2.4 Suspected cephalosporin treatment failure
- Preferred regimen: Ceftriaxone 250 mg IM in a single dose AND Azithromycin 1 g PO in a single dose
- Alternative regimen (1): Gemifloxacin 320 mg PO single dose AND Azithromycin 2 g PO single dose (when isolates have elevated cephalosporin MICs)
- Alternative regimen (2): Gentamicin 240 mg IM single dose AND Azithromycin 2 g PO single dose (when isolates have elevated cephalosporin MICs)
- Alternative regimen (3): Ceftriaxone 250 mg IM as a single dose AND Azithromycin 2 g PO as a single dose (failure after treatment with cefixime and azithromycin)
- Note: Treatment failure should be considered in: (1) persons whose symptoms do not resolve within 3–5 days after appropriate treatment and report no sexual contact during the post-treatment follow-up period; (2) persons with a positive test-of-cure (i.e., positive culture ≥ 72 hours or positive NAAT ≥ 7 days after receiving recommended treatment) when no sexual contact is reported during the post-treatment follow-up period; (3) persons who have a positive culture on test-of-cure (if obtained) if there is evidence of decreased susceptibility to cephalosporins on antimicrobial susceptibility testing, regardless of whether sexual contact is reported during the post-treatment follow-up period.
- 1.3 Gonococcal conjunctivitis
- Preferred regimen: Ceftriaxone 250 mg IM in a single dose AND Azithromycin 1 g PO in a single dose
- Note: Consider one-time lavage of the infected eye with saline solution.
- 1.3.1 Management of sex partners
- Patients should be instructed to refer their sex partners for evaluation and treatment.
- 1.4 Disseminated gonococcal infection
- 1.4.1 Arthritis and arthritis-dermatitis syndrome
- Preferred regimen: Ceftriaxone 1 g IM/IV q24h for 7 days AND Azithromycin 1 g PO in a single dose
- Alternative regimen: Cefotaxime 1 g IV q8h for 7 days OR Ceftizoxime 1 g IV q 8 h for 7 days AND Azithromycin 1 g PO in a single dose
- 1.4.2 Gonococcal meningitis and endocarditis
- Preferred regimen : Ceftriaxone 1-2 g IV q 12-24 h for 10-14 days AND Azithromycin 1 g PO in a single dose
- 2. Gonococcal infections among neonates
- 2.1 Ophthalmia neonatorum caused by N. gonorrhoeae
- Preferred regimen: Ceftriaxone 25-50 mg/kg IV or IM in a single dose, not to exceed 125 mg
- 2.1.1 Management of mothers and their sex partners
- Mothers of infants with ophthalmia neonatorum caused by N. gonorrhoeae should be evaluated, tested, and presumptively treated for gonorrhea, along with their sex partner(s).
- 2.2 Disseminated gonococcal infection and gonococcal scalp abscesses in neonates
- Preferred regimen: Ceftriaxone 25-50 mg/kg/day IM/IV qd for 7 days OR Cefotaxime 25 mg/kg IV /IM q12h for 7 days.
- Note (1): The duration of treatment is 10-14 days if meningitis is documented.
- Note (2): Ceftriaxone should be administered cautiously to hyperbilirubinemic infants, especially those born prematurely.
- 2.2.1 Management of mothers and their sex partners
- Mothers of infants who have DGI or scalp abscesses caused by N. gonorrhoeae should be evaluated, tested, and presumptively treated for gonorrhea, along with their sex partner(s).
- 2.3 Neonates born to mothers who have gonococcal infection
- Preferred regimen: Ceftriaxone 25-50 mg/kg IM/IV in a single dose, not to exceed 125 mg
- 2.3.1 Management of mothers and their sex partners
- Mothers who have gonorrhea and their sex partners should be evaluated, tested, and presumptively treated for gonorrhea.
- 3. Gonococcal infections among infants and children
- 3.1 Infants and children who weigh ≤ 45 kg and who have uncomplicated gonococcal vulvovaginitis, cervicitis, urethritis, pharyngitis, or proctitis
- Preferred regimen: Ceftriaxone 25-50 mg/kg IM/IV in a single dose, not to exceed 125 mg
- 3.2 Children who weigh > 45 kg and who have uncomplicated gonococcal vulvovaginitis, cervicitis, urethritis, pharyngitis, or proctitis
- Preferred regimen: Ceftriaxone 250 mg IM in a single dose AND Azithromycin 1g PO in a single dose
- Alternative regimen: Cefixime 400 mg PO single dose AND Azithromycin 1 g PO single dose.(If ceftriaxone is not available)
- 3.3 Children who weigh ≤ 45 kg and who have bacteremia or arthritis
- Preferred regimen: Ceftriaxone 50 mg/kg (maximum dose: 1 g) IM/IV q24h for 7 days
- 3.4 Children who weigh > 45 kg and who have bacteremia or arthritis
- Preferred regimen: Ceftriaxone 1 g IM/IV q24h for 7 days
- Neisseria meningitidis
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- Meningococcal Meningitis or Bacteremia [49]
- Antimicrobials:
- Preferred regimen : Ceftriaxone 2 g IV q24h OR Cefotaxime 2 g IV q4-6h for 7-10 days.
- Alternatives regimen (1): Chloramphenicol 4-6 g/day for 7-10 days
- Alternatives regimen (2): Penicillin 18-24 MU/day IV
- Alternatives regimen (3): Ampicillin 12 g/day IV
- Alternatives regimen (4): Aztreonam 6-8 g/day IV OR moxifloxacin 400 mg/day IV.
- Steroids: Dexamethasone 10 mg IV q6h for 2-4 days starting before or with first dose.
- Moraxella catarrhalis
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- Pasteurella multocida
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Bacteria – Spirochetes
- Borrelia burgdorferi
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- Lyme disease
- 1. Early Lyme Disease
- 1.1 Erythema migrans
- Preferred regimen: Doxycycline 100 mg twice per day for 10-21 days OR Amoxicillin 500 mg 3 times per day for 14-21 days OR Cefuroxime axetil 500 mg twice per day for 14-21 days
- Alternatie regimen: : Azithromycin 500 mg PO per day for 7–10 days OR Clarithromycin 500 mg PO twice per day for 14–21 days (if the patient is not pregnant) OR Erythromycin 500 mg PO 4 times per day for 14–21 days
- Pediatric regimen (1): (children <8 years of age) Amoxicillin 50 mg/kg per day in 3 divided doses [maximum of 500 mg per dose] OR Cefuroxime axetil 30 mg/kg per day in 2 divided doses (maximum of 500 mg per dose)
- Pediatric regimen (2):(children ≥8 years of age)Doxycycline 4 mg/kg per day in 2 divided doses(maximum of 100 mg per dose)
- Pediatric regimen (3): Azithromycin 10 mg/kg per day (maximum of 500 mg per day) OR Clarithromycin 7.5 mg/kg twice per day (maximum of 500 mg per dose) OR Erythromycin 12.5 mg/kg 4 times per day (maximum of 500 mg per dose)
- 1.2 When erythema migrans cannot be reliably distinguished from community-acquired bacterial cellulitis
- Preferred regimen: Amoxicillin–clavulanic acid 500 mg 3 times per day;
- Pediatric regimen;Amoxicillin–clavulanic acid 50 mg/kg per day in 3 divided doses (maximum of 500 mg per dose)
- 1.3 Lyme meningitis and other manifestations of early neurologic Lyme disease
- Preferred regimen: Ceftriaxone 2g once per day IV for 10–28 days
- Alternative regimen (1): Cefotaxime 2 g IV q8h OR Penicillin G 18–24 million U q4h per day for patients with normal renal function
- Alternative regimen (2): Doxycycline 200–400 mg per day in 2 divided doses PO for 10–28 days
- Pediatric regimen (1): Ceftriaxone 50–75 mg/kg per day in a single daily intravenous dose (maximum, 2g)
- Pediatric regimen (2): Cefotaxime 150–200 mg/kg per day divided into 3 or 4 intravenous doses per day (maximum, 6 g per day)
- Pediatric regimen (3): Penicillin G 200,000–400,000 units/kg per day (maximum, 18–24 million U per day) divided into doses given intravenously q4h for those with normal renal function
- Pediatric regimen (4): (≥8 years old) Doxycycline 4–8 mg/kg PO per day in 2 divided doses (maximum, 100–200 mg per dose)
- 1.4 Lyme carditis
- Preferred regimen: Ceftriaxone 2g once per day IV for 10–28 days
- NOTE: patients with advanced heart block, a temporary pacemaker may be required; expert consultation with a cardiologist is recommended; Use of the pacemaker may be discontinued when the advanced heart block has resolved; An oral antibiotic treatment regimen should be used for completion of therapy and for outpatients, as is used for patients with erythema migrans without carditis (see above)
- 1.5 Borrelial lymphocytoma
- Preferred regimen: The same regimens used to treat patients with erythema migrans (see above)
- Late Lyme Disease
- 1.6 Lyme arthritis
- Preferred regimen: Doxycycline 100 mg twice per day OR Amoxicillin 500 mg 3 times per day
- Alternative regimen: Cefuroxime axetil 500 mg twice per day for 28 days
- Pediatric regimen: Amoxicillin 50 mg/kg per day in 3 divided doses (maximum of 500 mg per dose) OR Cefuroxime axetil 30 mg/kg per day in 2 divided doses (maximum of 500 mg per dose) OR (≥8 years of age) Doxycycline 4 mg/ kg per day in 2 divided doses (maximum of 100 mg per dose)
- NOTE: For patients who have persistent or recurrent joint swelling after a recommended course of oral antibiotic therapy, we recommend re-treatment with another 4-week course of oral antibiotics or with a 2–4-week course of Ceftriaxone IV
- 1.7 patients with arthritis and objective evidence of neurologic disease
- Preferred regimen: Ceftriaxone IV for 2–4 weeks
- Alternative regimen: Cefotaxime OR Penicillin G IV
- Pediatric regime: Ceftriaxone OR Cefotaxime OR Penicillin G IV
- 1.8 Late neurologic Lyme disease
- Preferred regimen: Ceftriaxone IV for 2 to 4 weeks
- Alternative regimen: Cefotaxime OR Penicillin G IV
- Pediatric regimen: Ceftriaxone OR Cefotaxime OR Penicillin G
- 1.9 Acrodermatitis chronica atrophicans
- Preferred regimen: Doxycycline 100 mg twice per day OR Amoxicillin 500 mg 3 times per day OR Cefuroxime axetil 500 mg twice per day for 21 days
- 2. Post–Lyme Disease Syndromes
- Preferred regimen: Further antibiotic therapy for Lyme disease should not be given unless there are objective findings of active disease (including physical findings, abnormalities on cerebrospinal or synovial fluid analysis, or changes on formal neuropsychologic testing)
- Borrelia recurrentis
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- 1. Tick-Borne Relapsing Fever [50]
- Preferred regimen: Doxycycline 100 mg PO twice daily for 5-10 days
- Alternative regimen: Erythromycin 500 mg PO four times a day for 5-10 days
- NOTE: If meningitis/encephalitis present, use Ceftriaxone 2 g IV q12h for 14 days
- 2. Louse-Borne Relapsing Fever
- Preferred regimen: single dose Tetracycline 500 mg PO
- Alternative regimen: single dose Erythromycin 500 mg PO
- Leptospira
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- 1. Treatment
-
- Preferred regimen: Penicillin 1.5 million units IV q6hr for 5-7 days
- 1.2 Less severe
- Preferred regimen: Amoxycillin OR Ampicillin OR Doxycycline 100 mg BID IV or PO for 5-7 days OR Erythromycin OR Ceftriaxone 1g IV per day for 5-7 days OR Cefotaxime OR Quinolone PO
- 2. Prophylaxis
- Leptospira interrogans [53]
- Preferred regimen: Doxycycline 200 mg PO once per week
- Treponema pallidum
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- 1. Syphilis Among non-HIV-Infected Persons[54]
- 1.1 Primary and Secondary Syphilis
- Preferred regimen (adult): Benzathine penicillin G 2.4 million units IM in a single dose
- Preferred regimen (pediatric): Benzathine penicillin G 50,000 units/kg IM, up to the adult dose of 2.4 million units in a single dose
- 1.2 Latent Syphilis
- 1.2.1 Early Latent Syphilis
- Preferred regimen: Benzathine penicillin G 2.4 million units IM in a single dose
- Pediatric regimen: Benzathine penicillin G 50,000 units/kg IM, up to the adult dose of 2.4 million units in a single dose
- 1.2.2 Late Latent Syphilis or Latent Syphilis of Unknown Duration
- Preferred regimen: Benzathine penicillin G 7.2 million units total, administered as 3 doses of 2.4 million units IM each at 1-week intervalspediatric
- Pediatric regimen: Benzathine penicillin G 50,000 units/kg IM, up to the adult dose of 2.4 million units, administered as 3 doses at 1-week intervals (total 150,000 units/kg up to the adult total dose of 7.2 million units)
- 1.3 Tertiary Syphilis
- Preferred regimen: Benzathine penicillin G 7.2 million units total, administered as 3 doses of 2.4 million units IM each at 1-week intervals
- 1.4 Neurosyphilis and ocular syphilis
- Preferred regimen: Aqueous crystalline penicillin G 18--24 million units per day, administered as 3--4 million units IV every 4 hours or continuous infusion, for 10--14 days
- Alternative regimen: Procaine penicillin 2.4 million units IM once daily AND Probenecid 500 mg orally four times a day, both for 10--14 days
- 2. Syphilis Among HIV-Infected Persons
- 2.1 Primary and Secondary Syphilis Among HIV-Infected Persons
- Preferred regimen: Benzathine penicillin G 2.4 million units IM in a single dose.
- 2.2 Latent Syphilis Among HIV-Infected Persons
- 2.2.1 early latent
- Preferred regimen: Benzathine penicillin G 2.4 million units IM in a single dose.
- 2.2.2 late latent
- Preferred regimen: Benzathine penicillin G at weekly doses of 2.4 million units for 3 weeks.
- 2.3 Neurosyphilis Among HIV-Infected Persons
- Preferred regimen: Aqueous crystalline penicillin G 18--24 million units per day, administered as 3--4 million units IV every 4 hours or continuous infusion, for 10--14 days
- Alternative regimen: Procaine penicillin 2.4 million units IM once daily AND Probenecid 500 mg orally four times a day, both for 10--14 days
- 3. Syphilis During Pregnancy
- Preferred regimen: Pregnant women should be treated with the penicillin regimen appropriate for their stage of infection
- 4. Congenital Syphilis in neonates
- 4.1 condition 1 : Infants with proven or highly probable disease and (1)an abnormal physical examination that is consistent with congenital syphilis;(2)a serum quantitative nontreponemal serologic titer that is fourfold higher than the mother's titer;¶ or(3)a positive darkfield test of body fluid(s).
- Preferred regimen: Aqueous crystalline penicillin G 100,000--150,000 units/kg/day, administered as 50,000 units/kg/dose IV every 12 hours during the first 7 days of life and every 8 hours thereafter for a total of 10 days OR Procaine penicillin G 50,000 units/kg/dose IM in a single daily dose for 10 days
- NOTE: If more than 1 day of therapy is missed, the entire course should be restarted. Data are insufficient regarding the use of other antimicrobial agents (e.g., ampicillin). When possible, a full 10-day course of penicillin is preferred, even if ampicillin was initially provided for possible sepsis. The use of agents other than penicillin requires close serologic follow-up to assess adequacy of therapy. In all other situations, the maternal history of infection with T. pallidum and treatment for syphilis must be considered when evaluating and treating the infant.
- 4.2 condition 2: Infants who have a normal physical examination and a serum quantitive nontreponemal serologic titer the same or less than fourfold the maternal titer and the (1)mother was not treated, inadequately treated, or has no documentation of having received treatment; (2)mother was treated with erythromycin or another nonpenicillin regimen;†† or (3)mother received treatment < 4 weeks before delivery.
- Preferred regimen: Aqueous crystalline penicillin G 100,000--150,000 units/kg/day, administered as 50,000 units/kg/dose IV every 12 hours during the first 7 days of life and every 8 hours thereafter for a total of 10 days OR Procaine penicillin G 50,000 units/kg/dose IM in a single daily dose for 10 days OR Benzathine penicillin G 50,000 units/kg/dose IM in a single dose
- NOTE:If the mother has untreated early syphilis at delivery, 10 days of parenteral therapy can be considered.
- 4.3 condition 3:Infants who have a normal physical examination and a serum quantitative nontreponemal serologic titer the same or less than fourfold the maternal titer and the (1)mother was treated during pregnancy, treatment was appropriate for the stage of infection, and treatment was administered >4 weeks before delivery and (2)mother has no evidence of reinfection or relapse.
- Preferred regimen: Benzathine penicillin G 50,000 units/kg/dose IM in a single dose
- 4.4 condition 4: Infants who have a normal physical examination and a serum quantitative nontreponemal serologic titer the same or less than fourfold the maternal titer and the (1)mother's treatment was adequate before pregnancy and (2)mother's nontreponemal serologic titer remained low and stable before and during pregnancy and at delivery (VDRL <1:2; RPR <1:4).
- Preferred regimen: No treatment is required; however, benzathine penicillin G 50,000 units/kg as a single IM injection might be considered, particularly if follow-up is uncertain.
- 5. Congenital Syphilis in infants and children
- Preferred regimen: Aqueous crystalline penicillin G 50,000 U/kg q4–6h for 10 days
Bacteria – Gram-Negative Bacilli
- Achromobacter xylosoxidans
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- Acinetobacter baumannii
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- Preferred regimen: Imipenem (Primaxin) 0.5-1 g IV q6h OR Ampicillin/sulbactam (Unasyn) 3g q4h OR Cefepime (Maxipime) 1-2 g IV q8h OR Colistin 2.5 mg/kg IV q12h OR Tigecycline (Tygacil) 100 mg IV, then 50 mg IV q12h OR Amikacin 7.5 mg/kg q12h IV or 15 mg/kg/day IV
- Alternative regimen: Ceftriaxone 1-2g IV every day OR Cefotaxime 2-3g IV q6-8h OR Ciprofloxacin (Cipro) 400 mg IV q8-12h or 750 mg PO BID OR TMP-SMX 15-20 mg (TMP)/kg/day IV divided 3 or 4 doses/day or 2 DS PO BID
- Aeromonas hydrophila
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- Bartonella
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- Bordetella pertussis
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- Burkholderia cepacia
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- Burkholderia pseudomallei
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- Campylobacter
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- Campylobacter fetus
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- Campylobacter jejuni
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- Capnocytophaga
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- Citrobacter freundii
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- Citrobacter koseri
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- Elizabethkingia meningoseptica
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- Enterobacter aerogenes
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- Enterobacter cloacae
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- Escherichia coli
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- Francisella tularensis
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- Helicobacter pylori
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- Klebsiella granulomatis
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- Klebsiella granulomatis (formly known as Calymmatobacterium granulomatis)
- 1. Granuloma Inguinale (Donovanosis)[55]
- Preferred regimen:Azithromycin 1 g PO once a week or 500 mg OD for 3 weeks and until all lesions have completely healed
- Alternate regimen: Doxycycline 100 mg PO bid for 3 weeks and until all lesions have completely healed OR Ciprofloxacin 750 mg PO bid for atleast 3 weeks and until all lesions have completely healed OR Erythromycin base 500 mg PO q6h for atleast 3 weeks and until all lesions have completely healed OR Trimethoprim-sulfamethoxazole one double-strength (160 mg/800 mg) tablet PO bid for atleast 3 weeks and until all lesions have completely healed
- Klebsiella pneumoniae
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- Klebsiella rhinoscleromatis
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-
- Preferred regimen: Ciprofloxacin OR Rifampicin
- Alternative regimen: Tetracycline OR Streptomycin OR Doxycycline OR Trimethoprim-Sulfamethoxazole OR Ceftriaxone OR Ofloxacin
- Note: The optimal duration of antimicrobial therapy remains unclear. A 6-week to 6-month cours of antibiotics until histology exams and cultures are negative may be required.
- Legionella pneumophila
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- Preferred regimen: Levofloxacin 750mg PO/IV OD for 7-10days OR Moxifloxacin 400mg PO/IV OD for 7-10 days OR Azithromycin 500mg PO/IV OD for 7-10days OR Rifampin 300mg PO/IV bid(optional) AND any other agent listed.
- Alternative regimen: Erythromycin 1g IV q6h and then 500mg PO q6h for 7-10days OR Ciprofloxacin400mg IV q12h then 750mg PO bid 7-10days
- Moraxella catarrhalis
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- Morganella morganii
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- Plesiomonas shigelloides
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- Proteus vulgaris
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- Providencia
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- Pseudomonas aeruginosa
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- Salmonella
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- Serratia marcescens
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- Shigella
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- Stenotrophomonas maltophilia
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- Vibrio cholerae
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- Vibrio parahaemolyticus
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- Vibrio vulnificus
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Bacteria – Atypical Organisms
- Chlamydophila pneumoniae
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- 1. Atypical pneumonia caused by Chlamydophila pneumoniae [58]
- 1.1 Adult
- Preferred regimen (1): Doxycycline 100 mg PO bid for 14-21 days
- Preferred regimen (2): Tetracycline 250 mg PO qid for 14-21 days
- Preferred regimen (3): Azithromycin 500 mg PO as a single dose, followed by 250 mg PO qd for 4 days
- Preferred regimen (4): Clarithromycin 500 mg PO bid for 10 days
- Preferred regimen (5): Levofloxacin 500 mg IV or PO qd for 7 to 14 days
- Preferred regimen (6): Moxifloxacin 400 mg PO qd for 10 days.
- 1.2 Pediatric
- Preferred regimen (1):Erythromycin suspension,PO 50 mg/kg/day for 10 to 14 days
- Preferred regimen (2):Clarithromycin suspension, 15 mg/kg/day for 10 days
- Preferred regimen (3): Azithromycin suspension, PO 10 mg/kg once on the first day, followed by 5 mg/kg qd daily for 4 days
- 2.Upper respiratory tract infection[59]
- Bronchitis
- Antibiotic therapy for C. pneumoniae is not required.
- Pharyngitis
- Antibiotic therapy for C. pneumoniae is not required.
- Sinusitis
- Antibiotic therapy is advisable if symptoms remain beyond 7-10 days.*
- Chlamydia trachomatis
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- 1 Chlaymydial infections '[60]
- 1.1 Chlamydial Infections in Adolescents and Adults
- Preferred regimen : Doxycycline 100 mg PO bid for 7 days OR Azithromycin 1 g PO in a single dose
- Alternative regimen (1): Erythromycin base 500 mg PO qid for 7 days OR Erythromycin ethylsuccinate 800 mg PO qid for 7 days
- Alternative regimen (2): Levofloxacin 500 mg PO qd for 7 days OR Ofloxacin 300 mg PO bid for 7 days.
- Note: Patients should be instructed to refer their sex partners for evaluation, testing, and treatment if they had sexual contact with the patient during the 60 days preceding onset of the patient's symptoms or chlamydia diagnosis.
- 1.2 Chlamydial Infections in patients with HIV Infection
- Preferred regimen : Doxycycline 100 mg PO bid for 7 days OR Azithromycin 1 g PO in a single dose
- Alternative regimen (1): Erythromycin base 500 mg PO qid for 7 days OR Erythromycin ethylsuccinate 800 mg PO qid for 7 days
- Alternative regimen (2): Levofloxacin 500 mg PO qd for 7 days OR Ofloxacin 300 mg PO bid for 7 days.
- 1.3Pregancy
- Preferred regimen :Azithromycin 1 g PO in a single dose
- Alternative regimen (1):Amoxicillin 500 mg PO tid for 7 days
- Alternative regimen (2):Erythromycin base 500 mg PO qid for 7 days OR Erythromycinbase 250 mg PO qid for 14 days
- Alternative regimen (3):Erythromycin ethylsuccinate 800 mg PO qid for 7 days OR Erythromycin ethylsuccinate 400 mg PO four qid for 14days
- Note:Doxycycline, Ofloxacin, and Levofloxacin are contraindicated in pregnant women
- 1.4 Management of sex partners
- Preferred regimen : Doxycycline 100 mg PO bid for 7 days OR Azithromycin 1 g PO in a single dose
- Alternative regimen (1): Erythromycin base 500 mg PO qid for 7 days OR Erythromycin ethylsuccinate 800 mg PO qid for 7 days
- Alternative regimen (2): Levofloxacin 500 mg PO qd for 7 days OR Ofloxacin 300 mg PO bid for 7 days.
- Note (1): Recent sex partners (i.e., persons having sexual contact with the infected patient within the 60 days preceding onset of symptoms or Chlamydia diagnosis) should be referred for evaluation, testing, and presumptive dual treatment.
- Note (2): If the patient’s last potential sexual exposure was >60 days before onset of symptoms or diagnosis, the most recent sex partner should be treated.
- Note (3): To avoid reinfection, sex partners should be instructed to abstain from unprotected sexual intercourse for 7 days after they and their sexual partner(s) have completed treatment and after resolution of symptoms, if present
- 2 Chlamydial infection among neonates
- 2.1 Ophthalmia Neonatorumcaused by C. trachomatis
- Preferred regimen :Erythromycin base or ethylsuccinate ,PO 50 mg/kg/ day divided into 4 doses daily for 14 days
- Alternative regimen : Azithromycin suspension, PO 20 mg/kg /day qd for 3 days
- Note: The mothers of infants who have chlamydial infection and the sex partners of these women should be evaluated and treated.
- 2.2Infant Pneumonia
- Preferred regimen :Erythromycin base or ethylsuccinate PO 50 mg/kg/ day divided into 4 doses daily for 14 days
- Alternative regimen : Azithromycin suspension, PO 20 mg/kg /day qd for 3 days
- 3.Chlamydial infection among infants and childern
- 3.1 Infants and childern who weigh < 45 kg
- Preferred regimen :Erythromycin base or ethylsuccinate PO 50 mg/kg/ day divided into 4 doses daily for 14 days
- 3.2 Infants and childern who weigh ≥45 kg but who are aged <8 years
- Preferred regimen :Azithromycin 1 g PO in a single dose
- 3.3 Infants and childern aged ≥8 years
- Preferred regimen :Azithromycin 1 g PO in a single dose OR Doxycycline 100 mg PO bid for 7 days
- 3. Lymphogranuloma venereum (LGV)
- Lymphogranuloma venereum (LGV) is caused by C. trachomatis serovars L1, L2, or L3 '[61]
- Preferred regimen : Doxycycline 100 mg PO bid for 21 days
- Alternative regimen: Erythromycin base 500 mg PO qid for 21 days
- Note (1): azithromycin 1 g orally once weekly for 3 weeks is probably effective based on its chlamydial antimicrobial activity. Fluoroquinolone-based treatments might also be effective, but extended treatment intervals are likely required.
- Note (2): Pregnant and lactating women should be treated with erythromycin. Azithromycin might prove useful for treatment of LGV in pregnancy, but no published data are available regarding its safety and efficacy. Doxycycline is contraindicated in pregnant women.
- Note (3): Persons with both LGV and HIV infection should receive the same regimens as those who are HIV negative. Prolonged therapy might be required, and delay in resolution of symptoms might occur.
- Note(4): Persons who have had sexual contact with a patient who has LGV within the 60 days before onset of the patient’s symptoms should be examined and tested for urethral, cervical, or rectal chlamydial infection depending on anatomic site of exposure. They should be presumptively treated with a chlamydia regimen ( Azithromycin 1 g PO single dose OR Doxycycline 100 mg PO bid for 7 days).
- Chlamydophila psittaci
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- 1. Pneumonia[62]
- 1.1 Adult
- Preferred regimen : Doxycycline 100 mg PO bid daily OR Tetracycline 500 mg PO qid for 10-21 days
- Alternative regimen :Minocycline
- 1.2 Pediatric
- Preferred regimen: Azithromycin
- Alternative regimen: fluoroquinolones
- 1.3 Pregnant Patients
- Preferred regimen : Azithromycin
- Alternative regimen: fluoroquinolones
- 2.Endocarditis in valve replacement patients
- Preferred regimen : Doxycycline
- Alternative regimen : fluoroquinolones.
- Coxiella burnetii
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- 1. Acute Q fever [63]
- 1.1 Adults:
- Preferred Regimen: Doxycycline PO 100 mg bid for 14 days
- 1.2 Children
- 1.2.1 Children with age ≥8 years:
- Preferred regimen:Doxycycline PO 2.2 mg/kg per dose bid for 14 days (maximum 100 mg/dose)
- 1.2.2 Children with age <8 years with high risk criteria
- Preferred regimen:Doxycycline PO 2.2 mg/kg per dose bid for 14 days (maximum: 100 mg/dose)
- 1.2.3 Children with age < 8 years with mild or uncomplicated illness:
- Preferred regimen:Doxycycline PO 2.2 mg/kg per dose bid for 5 days (maximum 100 mg/dose). If patient remains febrile past 5 days of treatment: Trimethoprim/Sulfamethoxazole 4-20 mg/kg bid for 14 days (maximum: 800 mg/dose)
- 1.3 Pregnant women
- Preferred regimen: Trimethoprim/sulfamethoxazole PO 160 mg/800 mg bid a day throughout pregnancy
- 2. Chronic Q fever
- 2.1 Endocarditis or vascular infection
- Preferred regimen:Doxycycline PO 100 mg bid and hydroxychloroquine PO 200 mg tid for ≥18 months
- Note: childern and pregnant women- consultation Recommended
- 2.2 Noncardiac organ disease
- Preferred regimen: Doxycycline PO 100 mg bid and hydroxychloroquine PO 200 mg tid
- Note: childern and pregnant women- consultation Recommended
- 2.3 Postpartumwith serologic profile for chronic Q fever
- Preferred regimen:Doxycycline PO 100 mg bid and hydroxychloroquine PO 200 mg tid for 12 months
- Note(1): Women should only be treated postpartum if serologic titers remain elevated >12 months after delivery (immunoglobulin G phase I titer ≥1:1024). Women treated during pregnancy for acute Q fever should be monitored similarly to other patients who are at high risk for progression to chronic disease (e.g., serologic monitoring at 3, 6, 12, 18, and 24 months after delivery)
- Note(2):Post-Q fever fatigue syndrome- no current recommendation
- Legionella
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- Atypical bacterial pneumonia caused by Legionella [64]
- Preferred Regimen: Levofloxacin 750 mg IV q24h OR Moxifloxacin 400 mg IV q24h OR Azithromycin 500 mg PO on day 1 followed by 250 mg q24h
- Alternate Regimen: Doxycycline 100 mg PO/IV q12h
- Mycoplasma pneumoniae
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- Atypical pneumonia caused by Mycoplasma pneumoniae[65]
- Preferred regimen (1): Azithromycin 500 mg PO day 1 and 250 mg day 2 to 5
- Preferred regimen (2): Doxycycline 100 mg PO bid for 14 days
- Preferred regimen (3): Moxifloxacin 400 mg PO qd for 14 days
- Mycoplasma genitalium
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- 1. Urethritis and cervicitis[66]
- Preferred regimen (macrolide-susceptible strains): Azithromycin 1 g PO as a single dose OR Azithromycin 500 mg PO as a dose followed by 250 mg PO qd for 4 days
- Preferred regimen (for patients with previous treatment failures): Moxifloxacin 400 mg PO qd for 7–14 days
- 2. Pelvic inflammatory disease (PID)[67]
- Preferred regimen: Moxifloxacin 400 mg PO qd for 14 days
- 3. Specific considerations[68]
- 3.1 Management of sex partners
- Sex partners should be managed according to guidelines for patients with nongonococcal urethritis, cervicitis, and pelvic inflammatory disease.
- 3.2 HIV infection
- Persons who have an M. genitalium infection and HIV infection should receive the same treatment regimen as those who are HIV negative.
Bacteria – Miscellaneous
- Gardnerella vaginalis
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- Eikenella corrodens
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- Bordetella pertussis
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- Bartonella
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- Stenotrophomonas maltophilia
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- Acinetobacter baumannii
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Bacteria – Anaerobic Gram-Negative Bacilli
- Bacteroides fragilis
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- 1. Monotherapy [69]
- Preferred regimen: Imipenem (Primaxin) OR Ertapenem OR Meropenem OR Doripenem 0.5-1.0 g IV q6h OR Piperacillin-tazobactam (Zosyn) 3.375 g IV q6h OR Ampicillin-sulbactam (Unasyn) 1-2 g IV q6h OR Tigecycline (Tygacil) 100 mg IV, then 50 mg IV q12h
- 2. Combination therapy
- Preferred regimen: Metronidazole 0.75-1.0 g IV q12h AND Cefotaxime 1.5-2 g IV q6h OR Aztreonam 1-2 g IV q8h OR Ceftriaxone 1 g IV q12h
- Fusobacterium necrophorum
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Fungi
- Aspergillosis
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- Blastomycosis
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- Paracoccidioidomycosis
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- Candidiasis
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- Chromoblastomycosis
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- Coccidioidomycosis
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- Cryptococcosis
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- Dermatophytosis
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- Onychomycosis
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- Tinea capitis
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- Tinea corporis
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- Tinea pedis
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- Tinea cruris
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- Tinea versicolor
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- Histoplasmosis
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- Mucormycosis
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- Penicilliosis
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- Sporotrichosis
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- Pneumocystis jiroveci
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Mycobacteria
- Mycobacterium tuberculosis
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- Mycobacterium abscessus
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- 1.Limited, localized extrapulmonary disease [70]
- Preferred regimen: Clarithromycin 500 mg PO twice daily ± Amikacin 10-15 mg/kg/day IV or 25 mg/kg three times weekly for 4 months
- 2.Pulmonary or serious extrapulmonary disease
- Preferred regimen: Clarithromycin 500 mg PO twice daily AND Amikacin 15 mg/kg/day IV AND Cefoxitin 2g q4h IV OR Imipenem 1g q6h IV for at least 2-4 months, if limited by adverse effects, then switch toClarithromycin 500 mg PO BID or 1000 mg XR OD OR Azithromycin 250 mg PO OD
- Alternative regimen(1): Tigecycline 100 mg IV load then 50 mg IV q12h could be substituted as one of the injectables
- Alternative regimen(2): Linezolid 600 mg PO q12h or 600 mg PO OD AND Clarithromycin could replace parental tx if not tolerated or feasible
- Mycobacterium bovis
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- Mycobacterium avium-intracellulare
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- Mycobacterium celatum
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- Mycobacterium chelonae
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- Mycobacterium foruitum
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- Mycobacterium haemophilum
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- Mycobacterium gordonae
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- Mycobacterium kansasii
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- Mycobacterium marinum
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- Mycobacterium scrofulaceum
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- Mycobacterium simiae
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- Mycobacterium ulcerans
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- Mycobacterium xenopi
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- Mycobacterium leprae
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Parasites – Intestinal Protozoa
- Balantidium coli
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- Blastocystis hominis
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- Cryptosporidium parvum
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- 1.Immunocompetent[71]
- Preferred regimen: No clear benefit
- 2.HIV[72]
- Preferred regimen: Nitazoxanide 500 mg PO bid for 3 days
- 3.HIV and Immunodeficiency[73]
- Preferred regimen: Effective antiretroviral therapy
- Note: Nitazoxanide is not licensed for immunodeficient patients
- Cryptosporidium hominis
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- 1.Immunocompetent[74]
- Preferred regimen: No clear benefit
- 2.HIV[75]
- Preferred regimen: Nitazoxanide 500 mg PO bid for 3 days
- 3.HIV and Immunodeficiency[76]
- Preferred regimen: Effective antiretroviral therapy
- Note: Nitazoxanide is not licensed for immunodeficient patients
- Cyclospora cayetanensis
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- Preferred regimen: Trimethoprim-sulfamethoxazole one double-strength tablet PO bid for 7-10 days[77]
- Alternative regimen(1): Ciprofloxacin 500 mg PO bid for 7 days[78]
- Alternative regimen(2): Nitazoxanide 500 mg PO bid for 7 days[79]
- Note(1): One double-strength tablet (160 mg TMP/800 mg SMX) .
- Note(2): Treatment is continued for 7 days in immunocompetent hosts and for 7 to 10 days in patients with HIV infection.
- Dientamoeba fragilis
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- Entamoeba histolytica
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- 1.Amebic Liver Abscess[80]
- Preferred regiemn: Metronidazole 750 mg PO tid for 10 days OR Tinidazole 2 g PO once daily for 5 days Followed by Paromomycin 30 mg/kg/day PO in three divided doses per day for 5-10 days OR Diloxanide furoate 500 mg PO tid for 10 days
- 2.Amebic Colitis[81]
- Preferred regimen: Tinidazole 2 g PO once daily for 5 days AND Paromomycin 30 mg/kg/day PO in three divided doses per day for 5-10 days OR Diloxanide furoate 500 mg PO tid for 10 days
- 3.Asymptomatic Intestinal Colonization[82]
- Preferred regimen: Paromomycin 30 mg/kg/day PO in three divided doses per day for 5-10 days OR Diloxanide furoate 500 mg PO tid for 10 days
- Giardia lamblia
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- Isospora belli
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- Microsporidiosis
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- 1.Ocular[83]
- Preferred regimen: Albendazole 400 mg PO bid for 3 weeks AND Fumagillin eye drops
- 2.Intestinal (diarrhea)[84]
- Preferred regimen:
- Adult: Albendazole 400 mg PO bid for 3 weeks for E. intestinalis
- Pediatric: Albendazole 15 mg/kg per day divided into 2 daily doses for 7 days for E. intestinalis
- Note: Fumagillin 20 mg PO tid reported effective for E. bieneusi
- 3.Disseminated[85] Albendazole 400 mg po bid for 3 weeks
Parasites – Extraintestinal Protozoa
- Primary amoebic meningoencephalitis
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- Acanthamoeba
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- Balamuthia mandrillaris
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- Naegleria fowleri
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- Babesia microti
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- Leishmaniasis
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- Plasmodium
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- Toxoplasma gondii
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- Trichomonas vaginalis
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1.T. vaginalis infection [86]
- Preferred regimen:Metronidazole 2 g PO in a single dose OR Tinidazole 2 g PO in a single dose
- Alternative regimen : Metronidazole 500 mg PO bid for 7 days
2.T. vaginalis infection in Pregnant and Lactating Women
- 2.1 Pregnant women
- Preferred regimen:Metronidazole 2 g PO in a single dose.
- 2.2 Post-partum and Breastfeeding
- Preferred regimen:Metronidazole 2 g PO in a single dose.OR Tinidazole 2 g PO in a single dose
- Note(1): do not breastfeed for 12-24 hrs following Metronidazole and 72 hrs following Tinidazole
- Note(2)Symptomatic pregnant women, regardless of pregnancy stage, should be tested and considered for treatment. Pregnant women should be advised of the risk and benefits to treatment as infection (definitely) and treatment (possibly)
- Note(3): Pregnant women with HIV who are treated for T. vaginalis infection should be retested 3 months after treatment.
3.T. vaginalis infection in patients with HIV
- Preferred regimen: Metronidazole 500 mg PO bid for 7 days
4. Persistent or Recurrent Trichomoniasis
- Treatment Failure
- Preferred regimen:Metronidazole 500 mg PO bid for 7 days
- Treatment failure again
- Preferred regimen:Metronidazole 2 g PO for 7 days OR Tinidazole 2 g PO for 7 days
- Nitroimidazole-resistant cases
- Preferred regimen: Tinidazole 2-3 g PO for 14 days
- African trypanosomiasis
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- American trypanosomiasis
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Parasites – Intestinal Nematodes (Roundworms)
- Ascaris lumbricoides
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- Preferred regimen: Albendazole 400 mg PO single dose OR Mebendazole 500 mg PO single dose or 100 mg twice daily for 3 days[87]
- Alternative regimen: Ivermectin 150 to 200 µg/kg PO once[88]
- Capillaria philippinensis
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- Preferred regimen: Mebendazole 200 mg twice a day for 20 days OR Albendazole 400 mg a day for 10 days[89]
- Enterobius vermicularis
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- Preferred regimen: Albendazole 400 mg PO single dose OR Mebendazole 100 mg PO single dose OR Ivermectin 200 µg/kg PO single dose OR Pyrantel pamoate 11 mg/kg up to 1 g PO single dose [90]
- Necator americanus
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- Preferred regimen: Albendazole 400 mg PO single dose OR Mebendazole 100 mg PO twice daily or 500 mg daily for 3 days OR Pyrantel pamoate 11 mg/kg PO per day (maximum 1 g/day) for 3 days[91]
- Ancylostoma duodenale
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- Preferred regimen: Albendazole 400 mg PO single dose OR Mebendazole 100 mg PO twice daily or 500 mg daily for 3 days OR Pyrantel pamoate 11 mg/kg PO per day (maximum 1 g/day) for 3 days[92]
- Strongyloides stercoralis
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- Preferred regimen: Ivermectin 200 mcg/kg/day PO for 2 days[93]
- Trichuris trichiura
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- Preferred regimen: Albendazole 400 mg PO for 3 days OR Mebendazole 100 mg PO twice a day for 3 days OR Ivermectin 200 mcg/kg/day PO for 3 days[94]
Parasites – Extraintestinal Nematodes (Roundworms)
- Ancylostoma braziliense
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- Preferred regimen[95]
- Adult: Albendazole 400 mg per day PO for 3 to 7 days
- Pediatric: Albendazole > 2 years 400 mg per day PO for 3 days
- Note: This drug is contraindicated in children younger than 2 years age.
- Alternative regimen[96]
- Adult: Ivermectin 200 mcg/kg PO single dose
- Pediatric: Ivermectin >15 kg give 200 mcg/kg single dose
- Angiostrongylus cantonensis
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- Filariasis
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- Onchocerciasis
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- Wuchereria bancrofti
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- Brugia malayi
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- Gnathostoma spinigerum
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- Toxocariasis
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- Trichinella spiralis
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- Preferred regimen: Albendazole 400 mg PO bid for 8 to 14 days OR Mebendazole 200 to 400 mg PO tid for 3 days, then 400 to 500 mg PO tid for 10 days[97]
- Note(1): Albendazole and Mebendazole are contraindicated during pregnancy and not recommended in children aged 2 years.
- Note(2): Prednisone administered at a dose of 30 mg/day to 60 mg/day for 10 to 15 days for severe symptoms
Parasites – Trematodes (Flukes)
- Clonorchis sinensis
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- Dicrocoelium dendriticum
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- Fasciola hepatica
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- Paragonimus westermani
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- Schistosomiasis
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Parasites – Cestodes (Tapeworms)
- Echinococcus
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- Neurocysticercosis
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- Sparganosis
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Parasites – Ectoparasites
- Body lice
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- Head lice
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- Pubic lice
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- Scabies
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- Myiasis
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Viruses
- Adenovirus
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- SARS
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- Cytomegalovirus
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- Enterovirus D68
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- Ebola virus
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- Marburg virus
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- Hantavirus
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- Dengue virus
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- West Nile virus
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- Yellow Fever
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- Chikungunya virus
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- Hepatitis A virus
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- Hepatitis B virus
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- Hepatitis C virus
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- Hepatitis D virus
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- Hepatitis E virus
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- Epstein-Barr virus
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- Human herpesvirus 6
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- Roseola
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- Kaposi's sarcoma-associated herpesvirus
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- Herpes simplex virus
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- 1.First Clinical Episode of Genital Herpes[98]
- Preferred Regimens: Acyclovir 400 mg PO tid for 7–10 days OR Acyclovir 200 mg PO five times a day for 7–10 daysOR Valacyclovir 1 g PO bid for 7–10 daysORFamciclovir 250 mg PO tid for 7–10 days
- Note:Treatment can be extended if healing is incomplete after 10 days of therapy.
- 2.Established HSV-2 Infection
- 2.1 Suppressive Therapy for Recurrent Genital Herpes
- Preferred Regimen: Acyclovir 400 mg PO bid OR Valacyclovir 500 mg PO qd OR Valacyclovir 1 g PO qd OR Famciclovir 250 mg PO bid
- Note(1):daily therapy with Acyclovir for as long as 6 years and with Valacyclovir or Famciclovir for 1 year
- Note(2):Valacyclovir 500 mg qd might be less effective than other Valacyclovir or Acyclovir dosing regimens in persons who have very frequent recurrences (i.e., ≥10 episodes per year).
- 2.2 Episodic Therapy for Recurrent Genital Herpes
- Preferred Regimen: Acyclovir 400 mg PO tid for 5 days OR Acyclovir 800 mg PO bid for 5 days OR Acyclovir 800 mg PO tid for 2 daysOR Valacyclovir 500 mg PO bid for 3 daysOR Valacyclovir 1 g PO qd for 5 days OR Famciclovir 125 mg PO bid for 5 daysORFamciclovir 1 gram PO bid for 1 day OR Famciclovir 500 mg once, followed by 250 mg PO bid for 2 days
- 3. Severe Disease (disseminated infection, pneumonitis, or hepatitis) or CNS complications (e.g., meningoencephalitis).
- Preferred Regimens: Acyclovir 5–10 mg/kg IV q8h for 2–7 days or until clinical improvement is observed, followed by oral antiviral therapy to complete at least 10 days of total therapy. HSV encephalitis requires 21 days of intravenous therapy. Impaired renal function warrants an adjustment in acyclovir dosage.
- 4. Special Considerations
- 4.1HIV Infection
- 4.1.1 Daily Suppressive Therapy in Persons with HIV
- Preferred Regimens: Acyclovir 400–800 mg PO bid /tid ORValacyclovir 500 mg PO bid ORFamciclovir 500 mg PO bid
- 4.1.2 Episodic Infection in Persons with HIV
- Preferred Regimens: Acyclovir 400 mg PO tid for 5–10 days OR Valacyclovir 1 g PO bid for 5–10 days OR Famciclovir 500 mg PO bid for 5–10 days
- Note:For severe HSV disease, initiating therapy with Acyclovir 5–10 mg/kg IV every 8 hours might be necessary.
- 4.2.Genital Herpes in Pregnancy
- suppressive therapy of pregnant women with recurrent genital herpes *
- Preferred Regimens: Acyclovir 400–800 mg PO bid /tid ORValacyclovir 500 mg PO bid
- Note:Treatment recommended starting at 36 weeks of gestation.
- 4.3Neonatal Herpes
- known or suspected neonatal herpes: Acyclovir 20 mg/kg IV q 8 h
- Note(1):treatment for 14 days if disease is limited to the skin and mucous membranes, or
- Note(2):treatment for 21 days for disseminated disease and that involving the central nervous system.
- 4.4 Acyclovir-resistant genital herpes
- 4.5Management of Sex Partners
- Preferred Regimens: Acyclovir 400 mg PO tid for 7–10 days OR Acyclovir 200 mg PO five times a day for 7–10 daysOR Valacyclovir 1 g PO bid for 7–10 daysOR Famciclovir 250 mg PO tid for 7–10 days
- Note:The sex partners of persons who have genital herpes can benefit from evaluation and counseling. Symptomatic sex partners should be evaluated and treated
- 4.6 Allergy, Intolerance, and Adverse Reactions
- Allergic and other adverse reactions to oral acyclovir, valacyclovir, and famciclovir are rare. Desensitization to acyclovir has been described.
- Varicella-zoster virus
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- Human papillomavirus
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- 1.Preferred regimen for External Anogenital Warts (i.e., penis, groin, scrotum, vulva, perineum, external anus, and perianus)
- 1.1 Patient-Applied::Imiquimod 3.75% or 5% cream ORPodofilox 0.5% solution or gel OR Sinecatechins 15% ointment
- 1.2 Provider-Administered:Cryotherapy with liquid nitrogen or cryoprobe OR Surgical removal either by tangential scissor excision, tangential shave excision, curettage, laser,or electrosurgery OR Trichloroacetic acid (TCA) or Bichloroacetic acid (BCA) 80%-90% solution
- Note(1):Many persons with external anal warts also have intra-anal warts. Thus, persons with external anal warts might benefit from an inspection of the anal canal by digital examination, standard anoscopy, or high-resolution anoscopy.
- Note(2):Might weaken condoms and vaginal diaphragms.
- 2.Alternative Regimens for External Genital Warts
- 2.1 Urethral Meatus Warts
- Regimens :Cryotherapy with liquid nitrogen OR Surgical removal
- 2.2Vaginal Warts
- Regimens:Cryotherapy with liquid nitrogen. OR Surgical removal OR TCA or BCA 80%–90% solution
- Note: The use of a cryoprobe in the vagina is not recommended because of the risk for vaginal perforation and fistula formation
- 2.3 Cervical Warts
- Regimen: Cryotherapy with liquid nitrogen OR Surgical removal OR TCA or BCA 80%–90% solution
- Note: Management of cervical warts should include consultation with a specialist.For women who have exophytic cervical warts, a biopsy evaluation to exclude high-grade SIL must be performed before treatment is initiated.
- 2.4 Intra-anal Warts
- Regimens :Cryotherapy with liquid nitrogen OR Surgical removalOR TCA or BCA 80%–90% solution
- Note:Management of intra-anal warts should include consultation with a specialist.
- Influenza A
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- Influenza B
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- Avian influenza
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- Swine influenza
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- Measles
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- Middle East respiratory syndrome
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- Paramyxovirus
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- Parvovirus B19
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- BK virus
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- JC virus
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- Rabies
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- Respiratory Syncytial Virus
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- Rhinovirus
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- Rotavirus
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- Smallpox
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- HIV/AIDS
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References
- ↑ Mermel LA, Allon M, Bouza E, Craven DE, Flynn P, O'Grady NP; et al. (2009). "Clinical practice guidelines for the diagnosis and management of intravascular catheter-related infection: 2009 Update by the Infectious Diseases Society of America". Clin Infect Dis. 49 (1): 1–45. doi:10.1086/599376. PMC 4039170. PMID 19489710.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Liu, Catherine; Bayer, Arnold; Cosgrove, Sara E.; Daum, Robert S.; Fridkin, Scott K.; Gorwitz, Rachel J.; Kaplan, Sheldon L.; Karchmer, Adolf W.; Levine, Donald P.; Murray, Barbara E.; J Rybak, Michael; Talan, David A.; Chambers, Henry F.; Infectious Diseases Society of America (2011-02-01). "Clinical practice guidelines by the infectious diseases society of america for the treatment of methicillin-resistant Staphylococcus aureus infections in adults and children". Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America. 52 (3): –18-55. doi:10.1093/cid/ciq146. ISSN 1537-6591. PMID 21208910.
- ↑ Tunkel, Allan R.; Hartman, Barry J.; Kaplan, Sheldon L.; Kaufman, Bruce A.; Roos, Karen L.; Scheld, W. Michael; Whitley, Richard J. (2004-11-01). "Practice guidelines for the management of bacterial meningitis". Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America. 39 (9): 1267–1284. doi:10.1086/425368. ISSN 1537-6591. PMID 15494903.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Kasper, Dennis (2015). Harrison's principles of internal medicine. New York: McGraw Hill Education. ISBN 978-0071802154.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Darouiche, Rabih O. (2006-11-09). "Spinal epidural abscess". The New England Journal of Medicine. 355 (19): 2012–2020. doi:10.1056/NEJMra055111. ISSN 1533-4406. PMID 17093252.
- ↑ Liu, Catherine; Bayer, Arnold; Cosgrove, Sara E.; Daum, Robert S.; Fridkin, Scott K.; Gorwitz, Rachel J.; Kaplan, Sheldon L.; Karchmer, Adolf W.; Levine, Donald P.; Murray, Barbara E.; J Rybak, Michael; Talan, David A.; Chambers, Henry F.; Infectious Diseases Society of America (2011-02-01). "Clinical practice guidelines by the infectious diseases society of america for the treatment of methicillin-resistant Staphylococcus aureus infections in adults and children". Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America. 52 (3): –18-55. doi:10.1093/cid/ciq146. ISSN 1537-6591. PMID 21208910.
- ↑ Liu, Catherine; Bayer, Arnold; Cosgrove, Sara E.; Daum, Robert S.; Fridkin, Scott K.; Gorwitz, Rachel J.; Kaplan, Sheldon L.; Karchmer, Adolf W.; Levine, Donald P.; Murray, Barbara E.; J Rybak, Michael; Talan, David A.; Chambers, Henry F.; Infectious Diseases Society of America (2011-02-01). "Clinical practice guidelines by the infectious diseases society of america for the treatment of methicillin-resistant Staphylococcus aureus infections in adults and children". Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America. 52 (3): –18-55. doi:10.1093/cid/ciq146. ISSN 1537-6591. PMID 21208910.
- ↑ Liu, Catherine; Bayer, Arnold; Cosgrove, Sara E.; Daum, Robert S.; Fridkin, Scott K.; Gorwitz, Rachel J.; Kaplan, Sheldon L.; Karchmer, Adolf W.; Levine, Donald P.; Murray, Barbara E.; J Rybak, Michael; Talan, David A.; Chambers, Henry F.; Infectious Diseases Society of America (2011-02-01). "Clinical practice guidelines by the infectious diseases society of america for the treatment of methicillin-resistant Staphylococcus aureus infections in adults and children". Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America. 52 (3): –18-55. doi:10.1093/cid/ciq146. ISSN 1537-6591. PMID 21208910.
- ↑ Azari, Amir A.; Barney, Neal P. (2013-10-23). "Conjunctivitis: a systematic review of diagnosis and treatment". JAMA. 310 (16): 1721–1729. doi:10.1001/jama.2013.280318. ISSN 1538-3598. PMC 4049531. PMID 24150468.
- ↑ 14.0 14.1 14.2 Solomkin JS, Mazuski JE, Bradley JS, Rodvold KA, Goldstein EJ, Baron EJ; et al. (2010). "Diagnosis and management of complicated intra-abdominal infection in adults and children: guidelines by the Surgical Infection Society and the Infectious Diseases Society of America". Clin Infect Dis. 50 (2): 133–64. doi:10.1086/649554. PMID 20034345.
- ↑ Mogayzel PJ, Naureckas ET, Robinson KA, Mueller G, Hadjiliadis D, Hoag JB; et al. (2013). "Cystic fibrosis pulmonary guidelines. Chronic medications for maintenance of lung health". Am J Respir Crit Care Med. 187 (7): 680–9. PMID 23540878.
- ↑ Pasteur MC, Bilton D, Hill AT, British Thoracic Society Bronchiectasis non-CF Guideline Group (2010). "British Thoracic Society guideline for non-CF bronchiectasis". Thorax. 65 Suppl 1: i1–58. doi:10.1136/thx.2010.136119. PMID 20627931.
- ↑ Stevens DL, Bisno AL, Chambers HF, Dellinger EP, Goldstein EJ, Gorbach SL; et al. (2014). "Practice guidelines for the diagnosis and management of skin and soft tissue infections: 2014 update by the infectious diseases society of America". Clin Infect Dis. 59 (2): 147–59. doi:10.1093/cid/ciu296. PMID 24947530.
- ↑ Lappin E, Ferguson AJ (2009). "Gram-positive toxic shock syndromes". Lancet Infect Dis. 9 (5): 281–90. doi:10.1016/S1473-3099(09)70066-0. PMID 19393958.
- ↑ Hillis LD, Smith PK, Anderson JL, Bittl JA, Bridges CR, Byrne JG; et al. (2011). "2011 ACCF/AHA Guideline for Coronary Artery Bypass Graft Surgery. A report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Developed in collaboration with the American Association for Thoracic Surgery, Society of Cardiovascular Anesthesiologists, and Society of Thoracic Surgeons". J Am Coll Cardiol. 58 (24): e123–210. doi:10.1016/j.jacc.2011.08.009. PMID 22070836.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ 25.0 25.1 25.2 Hendricks KA, Wright ME, Shadomy SV, Bradley JS, Morrow MG, Pavia AT; et al. (2014). "Centers for disease control and prevention expert panel meetings on prevention and treatment of anthrax in adults". Emerg Infect Dis. 20 (2). doi:10.3201/eid2002.130687. PMC 3901462. PMID 24447897.
- ↑ Meaney-Delman D, Zotti ME, Creanga AA, Misegades LK, Wako E, Treadwell TA; et al. (2014). "Special considerations for prophylaxis for and treatment of anthrax in pregnant and postpartum women". Emerg Infect Dis. 20 (2). doi:10.3201/eid2002.130611. PMC 3901460. PMID 24457117.
- ↑ 27.0 27.1 Bradley JS, Peacock G, Krug SE, Bower WA, Cohn AC, Meaney-Delman D; et al. (2014). "Pediatric anthrax clinical management". Pediatrics. 133 (5): e1411–36. doi:10.1542/peds.2014-0563. PMID 24777226.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ Andrews, J. M.; Wise, R. (2002-06). "Susceptibility testing of Bacillus species". The Journal of Antimicrobial Chemotherapy. 49 (6): 1040–1042. ISSN 0305-7453. PMID 12039902. Check date values in:
|date=
(help) - ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ "q fever".
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Corbel, Michael (2006). Brucellosis in humans and animals. Geneva: World Health Organization. ISBN 9241547138.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Workowski, Kimberly A.; Bolan, Gail A. (2015-06-05). "Sexually transmitted diseases treatment guidelines, 2015". MMWR. Recommendations and reports: Morbidity and mortality weekly report. Recommendations and reports / Centers for Disease Control. 64 (RR-03): 1–137. ISSN 1545-8601. PMID 26042815.
- ↑ Workowski, Kimberly A.; Bolan, Gail A. (2015-06-05). "Sexually transmitted diseases treatment guidelines, 2015". MMWR. Recommendations and reports: Morbidity and mortality weekly report. Recommendations and reports / Centers for Disease Control. 64 (RR-03): 1–137. ISSN 1545-8601. PMID 26042815.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ LastName, FirstName (2003). Human leptospirosis guidance for diagnosis, surveillance and control. Geneva: World Health Organization. ISBN 9241545895.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Workowski KA, Bolan GA (2015). "Sexually transmitted diseases treatment guidelines, 2015". MMWR. Recommendations and Reports : Morbidity and Mortality Weekly Report. Recommendations and Reports / Centers for Disease Control. 64 (RR-03): 1–137. PMID 26042815.
- ↑ Workowski, Kimberly A.; Bolan, Gail A. (2015-06-05). "Sexually transmitted diseases treatment guidelines, 2015". MMWR. Recommendations and reports: Morbidity and mortality weekly report. Recommendations and reports / Centers for Disease Control. 64 (RR-03): 1–137. ISSN 1545-8601. PMID 26042815.
- ↑ Mukara, B. K.; Munyarugamba, P.; Dazert, S.; Löhler, J. (2014-07). "Rhinoscleroma: a case series report and review of the literature". European archives of oto-rhino-laryngology: official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS): affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery. 271 (7): 1851–1856. doi:10.1007/s00405-013-2649-z. ISSN 1434-4726. PMID 23904142. Check date values in:
|date=
(help) - ↑ Mukara, B. K.; Munyarugamba, P.; Dazert, S.; Löhler, J. (2014-07). "Rhinoscleroma: a case series report and review of the literature". European archives of oto-rhino-laryngology: official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS): affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery. 271 (7): 1851–1856. doi:10.1007/s00405-013-2649-z. ISSN 1434-4726. PMID 23904142. Check date values in:
|date=
(help) - ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Workowski, Kimberly A.; Bolan, Gail A. (2015-06-05). "Sexually transmitted diseases treatment guidelines, 2015". MMWR. Recommendations and reports: Morbidity and mortality weekly report. Recommendations and reports / Centers for Disease Control. 64 (RR-03): 1–137. ISSN 1545-8601. PMID 26042815.
- ↑ Workowski, Kimberly A.; Bolan, Gail A. (2015-06-05). "Sexually transmitted diseases treatment guidelines, 2015". MMWR. Recommendations and reports: Morbidity and mortality weekly report. Recommendations and reports / Centers for Disease Control. 64 (RR-03): 1–137. ISSN 1545-8601. PMID 26042815.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ "q fever".
- ↑ Mandell LA, Wunderink RG, Anzueto A, Bartlett JG, Campbell GD, Dean NC; et al. (2007). "Infectious Diseases Society of America/American Thoracic Society consensus guidelines on the management of community-acquired pneumonia in adults". Clin Infect Dis. 44 Suppl 2: S27–72. doi:10.1086/511159. PMID 17278083.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Workowski, Kimberly A.; Bolan, Gail A. (2015-06-05). "Sexually transmitted diseases treatment guidelines, 2015". MMWR. Recommendations and reports: Morbidity and mortality weekly report. Recommendations and reports / Centers for Disease Control. 64 (RR-03): 1–137. ISSN 1545-8601. PMID 26042815.
- ↑ Workowski, Kimberly A.; Bolan, Gail A. (2015-06-05). "Sexually transmitted diseases treatment guidelines, 2015". MMWR. Recommendations and reports: Morbidity and mortality weekly report. Recommendations and reports / Centers for Disease Control. 64 (RR-03): 1–137. ISSN 1545-8601. PMID 26042815.
- ↑ Workowski, Kimberly A.; Bolan, Gail A. (2015-06-05). "Sexually transmitted diseases treatment guidelines, 2015". MMWR. Recommendations and reports: Morbidity and mortality weekly report. Recommendations and reports / Centers for Disease Control. 64 (RR-03): 1–137. ISSN 1545-8601. PMID 26042815.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Bartlett, John (2012). Johns Hopkins ABX guide : diagnosis and treatment of infectious diseases. Burlington, MA: Jones and Bartlett Learning. ISBN 978-1449625580.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ Gilbert, David (2015). The Sanford guide to antimicrobial therapy. Sperryville, Va: Antimicrobial Therapy. ISBN 978-1930808843.
- ↑ "trichomoniasis".
- ↑ "Parasites - Ascariasis".
- ↑ "Parasites - Ascariasis".
- ↑ "Parasites - Capillariasis".
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 978-1455748013.
- ↑ "WGO Practice Guideline Management of Strongyloidiasis" (PDF).
- ↑ "Parasites - Trichuriasis".
- ↑ "Parasites - Zoonotic Hookworm".
- ↑ "Parasites - Zoonotic Hookworm".
- ↑ Gottstein B, Pozio E, Nöckler K (2009). "Epidemiology, diagnosis, treatment, and control of trichinellosis". Clin Microbiol Rev. 22 (1): 127–45, Table of Contents. doi:10.1128/CMR.00026-08. PMC 2620635. PMID 19136437.
- ↑ Workowski, Kimberly A.; Bolan, Gail A. (2015-06-05). "Sexually transmitted diseases treatment guidelines, 2015". MMWR. Recommendations and reports: Morbidity and mortality weekly report. Recommendations and reports / Centers for Disease Control. 64 (RR-03): 1–137. ISSN 1545-8601. PMID 26042815.