After a Trip to Several South American Countries, a Middle-

Multiple Choice

After a trip to several South American countries, a middle- aged man becomes ill. He becomes anemic, loses weight, and runs a fever. The clinician notes a recently healed sore near his nose. Microscopic examination of a blood smear does not reveal anything other than the anemia. What parasitic infection is consistent with this scenario?

A) malaria
B) balantidiasis
C) Chagas' disease
D) giardiasis
E) leishmaniasis