Ureaplasma urealyticum epidemiology and demographics
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Fatimo Biobaku M.B.B.S [2]
Overview
Epidemiology and Demographics
Prevalence
Ureaplasma species are commensal organisms in the female genital tract, colonizing 40-80% of the genital tract of healthy women.[1] [2][3][4] The prevalence of vaginal colonization with U. urealyticum in pregnant women is 29-42%.[5] Ureaplasma species are the most common pathogen identified in VLBW infants.[4] Ureaplasma colonization of the respiratory tract is more common in preterm VLBW infants compared to term infants.[6][7] 20-45% of VLBW infants have Ureaplasma colonization of the respiratory tract.[2] The incidence of Ureaplasma species in cord blood cultures of VLBW neonates was found to be 17%.[8] Ureaplasma species have also been shown to invade the bloodstream and cross the blood–brain barrier in 23% of VLBW infants in another study.[4] The prevalence of Ureaplasma positive CSF culture from preterm infants investigated for suspected meningitis was 8%.[9]
Age
Colonization by Ureaplasma species can be seen in both the pediatric and adult population. Genital tract of adult men and women are the main reservoirs of Ureaplasma species.[2][10] However, symptomatic Ureaplasma infection is seen more often in preterm neonates.[4] Colonization of neonates by U. urealyticum increases with decreasing gestational age and birth weight.[11]
Gender
There is no known gender predilection for Ureaplasma infection.
Race
There is no racial predilection for Ureaplasma colonization.[12] A previous study conducted in the United States in the 1980's in 13,747 women of low socioeconomic status from four different ethnic groups revealed that women of black ethnicity were more likely to have genital tract colonization with potentially pathogenic organisms such as U. urealyticum [13]
References
- ↑
- ↑ 2.0 2.1 2.2 Resch B, Gutmann C, Reiterer F, Luxner J, Urlesberger B (2016). "Neonatal Ureaplasma urealyticum colonization increases pulmonary and cerebral morbidity despite treatment with macrolide antibiotics". Infection. 44 (3): 323–7. doi:10.1007/s15010-015-0858-7. PMID 26518581.
- ↑
- ↑ 4.0 4.1 4.2 4.3
- ↑ Vogel I, Thorsen P, Hogan VK, Schieve LA, Jacobsson B, Ferre CD (2006). "The joint effect of vaginal Ureaplasma urealyticum and bacterial vaginosis on adverse pregnancy outcomes". Acta Obstet Gynecol Scand. 85 (7): 778–85. doi:10.1080/00016340500442423. PMID 16817073.
- ↑ Waites KB, Katz B, Schelonka RL (2005). "Mycoplasmas and ureaplasmas as neonatal pathogens". Clin Microbiol Rev. 18 (4): 757–89. doi:10.1128/CMR.18.4.757-789.2005. PMC 1265909. PMID 16223956.
- ↑ Patterson AM, Taciak V, Lovchik J, Fox RE, Campbell AB, Viscardi RM (1998). "Ureaplasma urealyticum respiratory tract colonization is associated with an increase in interleukin 1-beta and tumor necrosis factor alpha relative to interleukin 6 in tracheal aspirates of preterm infants". Pediatr Infect Dis J. 17 (4): 321–8. PMID 9576388.
- ↑
- ↑ Waites KB, Rudd PT, Crouse DT, Canupp KC, Nelson KG, Ramsey C; et al. (1988). "Chronic Ureaplasma urealyticum and Mycoplasma hominis infections of central nervous system in preterm infants". Lancet. 1 (8575–6): 17–21. PMID 2891889.
- ↑
- ↑ Agarwal P, Rajadurai VS, Pradeepkumar VK, Tan KW (2000). "Ureaplasma urealyticum and its association with chronic lung disease in Asian neonates". J Paediatr Child Health. 36 (5): 487–90. PMID 11036807.
- ↑ Doh K, Barton PT, Korneeva I, Perni SC, Bongiovanni AM, Tuttle SL; et al. (2004). "Differential vaginal expression of interleukin-1 system cytokines in the presence of Mycoplasma hominis and Ureaplasma urealyticum in pregnant women". Infect Dis Obstet Gynecol. 12 (2): 79–85. doi:10.1080/10647440400003667. PMC 1784593. PMID 15739821.
- ↑ Goldenberg RL, Klebanoff MA, Nugent R, Krohn MA, Hillier S, Andrews WW; et al. (1996). "Bacterial colonization of the vagina during pregnancy in four ethnic groups". Am J Obstet Gynecol. 174 (5): 1618–1621. doi:10.1016/S0002-9378(96)70617-8. PMID 28140029.