The etiologic organism for American trypanosomiasis (Chagas disease) is which of the following?

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Prepare for the American Board of Family Medicine Examination. Test your knowledge with flashcards and multiple choice questions, each with explanations and hints. Ready yourself for success!

Multiple Choice

The etiologic organism for American trypanosomiasis (Chagas disease) is which of the following?

Explanation:
American trypanosomiasis, or Chagas disease, is caused by Trypanosoma cruzi, a flagellated protozoan transmitted mainly by triatomine bugs (kissing bugs) in the Americas. After infection, the parasite invades cells and can cause an acute illness and, over time, chronic problems such as cardiomyopathy or megasyndromes of the esophagus and colon. This distinguishes it from the other organisms listed: malaria is caused by Plasmodium falciparum and spread by Anopheles mosquitoes; visceral leishmaniasis is caused by Leishmania donovani; giardiasis is caused by Giardia lamblia.

American trypanosomiasis, or Chagas disease, is caused by Trypanosoma cruzi, a flagellated protozoan transmitted mainly by triatomine bugs (kissing bugs) in the Americas. After infection, the parasite invades cells and can cause an acute illness and, over time, chronic problems such as cardiomyopathy or megasyndromes of the esophagus and colon. This distinguishes it from the other organisms listed: malaria is caused by Plasmodium falciparum and spread by Anopheles mosquitoes; visceral leishmaniasis is caused by Leishmania donovani; giardiasis is caused by Giardia lamblia.

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