Fungal and Parasitic Infections USMLE Step 1 Practice Question
A 49 year old man presents with progressive fatigue and numbness in his feet. He frequently eats raw freshwater fish that he catches while camping. Laboratory studies show hemoglobin 9.4 g per dL, mean corpuscular volume 112 fL, and low vitamin B12 level. Which of the following is the most likely causal organism?
Answer choices
- ADiphyllobothrium latumCorrect answer
- BGiardia lamblia
- CEchinococcus granulosus
- DTrichinella spiralis
- EStrongyloides stercoralis
- FAnisakis simplex
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