Trypanosoma cruzi is introduced into the body by
A. feces containing trypomastigotes contaminating a bite wound.
B. the bite of a tsetse fly, which introduces the trypomastigotes into the body.
C. ingesting food contaminated with the parasite.
D. the bite of a sand fly that has ingested phagocytes containing the parasite.
E. wearing contact lenses cleaned with contaminated tap water.
Answer: A
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