Seroepidemiological study of chagas disease in the southern Amazon region of ecuador.

To determine the extent of Trypanosoma cruzi infection and/or transmission in the southern Amazon region of Ecuador, three indigenous communities in the provinces of Pastaza and Morona Santiago were serosurveyed. Chagatest(TM), Immunocomb(®)II and immunofluorescent (IF) assays were used. Among the 385 inhabitants examined, nine (2.