]> 2026-07-31T12:14:27+00:00 WBR265 0 en HHV-6 HHV-6 causes Roseola, a macular rash over the body that appears several days after a high-grade fever. Varicella zoster virus Varicella zoster virus (VZV) causes chicken pox, in which the rash typically begins from the trunk and then spreads to the face and extremities. Mumps virus Mumps virus causes mumps, which typically presents with no rash but with parotitis and/or meningitis (pancreatitis, orchitis/oophoritis in young adults). Rubella virus Infection with the Rubella virus is associated with the development of a descending rash and post-auricular lymphadenopathy. Measles virus Measles virus causes measles. The rash in measles is preceded by cough, coryza, conjunctivitis and blue-white (Koplik) spots on the buccal mucosa. The patient is most likely diagnosed with Rubella virus infection (German measles). The primary symptom of rubella virus infection is the appearance of a rash (exanthem) on the face which spreads to the trunk and limbs and usually fades after three days. Other symptoms include low grade fever, swollen glands (typically post-cervical/post-auricular lymphadenopathy), joint pains, headache, and conjunctivitis. The swollen glands or lymph nodes can persist for up to a week, and the fever rarely rises above 38 ^oC (100.4 ^oF). The rash disappears after a few days with no staining or peeling of the skin.<br/> '''Educational Objective:''' Rubella virus causes German measles with the clinical presentation of post-auricular lymphadenopathy and rash.<br/> '''References:''' First Aid 2015 page 163 <br> Microbiology A 4-year old boy is brought to the emergency department by his mother with complaints of fever, cough, runny nose, and a rash. The mother reports that the rash began on the forehead and progressively moved downwards. The patient's past medical history is unremarkable. Physical examination is remarkable for post-auricular lymphadenopathy. Which of the following is the most likely pathogen responsible for this patient's symptoms? D Pulmonology Infectious Disease 2020-10-28T02:56:37Z 2459150.6226505 WBR265