A 25-year-old man from an Andean valley has fever, severe haemolytic anaemia and jaundice after a sandfly bite. What is the causative organism?
Answer and explanation
Correct answer: B. Bartonella bacilliformis
- Step 1: Carrion disease, also called Oroya fever, is caused by Bartonella bacilliformis and transmitted by Lutzomyia sandflies. Answer: Bartonella bacilliformis. Why not the others: Plasmodium falciparum, Leishmania braziliensis and Trypanosoma cruzi don't fit.
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