Viral Infections USMLE Step 1 Practice Question
A 14 year old boy with sickle cell disease presents with fatigue, pallor, and lightheadedness for 3 days. He recently recovered from a mild febrile illness. Laboratory studies show hemoglobin 5.8 g per dL with a markedly decreased reticulocyte count. Which of the following infectious agents is the most likely cause of this patient’s current condition?
Answer choices
- AHuman herpesvirus 8
- BHepatitis B virus
- CParvovirus B19Correct answer
- DEpstein Barr virus
- ECoxsackie B virus
- FCytomegalovirus
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