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One week following a visit to the woods along an Eastern seaboard beach, a 50-year-old woman develops fever, headache, chills, and fatigue. A blood smear demonstrates protozoa within erythrocytes. Which of the following is the most likely pathogen?

A. Babesia microti
B. Leishmania donovania
C. Plasmodium falciparum
D. Plasmodium vivax
E. Trypanosoma cruzi
 
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A. Babesia microti

One week following a visit to the woods along an Eastern seaboard beach, a 50-year-old woman develops fever, headache, chills, and fatigue. A blood smear demonstrates protozoa within erythrocytes. Which of the following is the most likely pathogen?

A. Babesia microti
B. Leishmania donovania
C. Plasmodium falciparum
D. Plasmodium vivax
E. Trypanosoma cruzi
\
It's A. Babesia microti
 

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my answer is A too.

plasmodium causes CYCLIC fever, Leishmania cause kala-azar, T.cruzi causes chaga's disease. except i would be more confident if the question had mentioned maltese rods in RBCs. :)
 
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