Abstract

Triatoma dimidiata capilata were abundant in houses of the village San Joaquin (Dept. Santander), Colombia. Five of these triatomids presented salivary gland infestation with Trypanosoma rangeli . Two showed hemofymph infection and 8 showed intestinal infection with crithidiae of T. rangeli . Mice bitten by naturally infected triatomids became infected with T. rangeli . The flagellates were easy to cultivate in diphasic blood agar media, and able to produce salivary gland infection in Rhodnius prolixtus . An U.S. citizen frequently bitten by the triatomids in San Joaquin presented infection with T. rangeli .

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