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Updated: May 30, 2026

Sexual Transmission of American Trypanosomes from Males and Females to Naive Mates
Published on: January 27, 2019
[Oral transmission of Chagas' disease]
Alberto Toso M1, Felipe Vial U, Norbel Galanti
1Programa de Biología Celular y Molecular, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de ChileSantiago, Chile.
Abstract:
The traditional transmission pathways of Chagas' disease are vectorial, transfusional, transplacental and organ transplantation. However, oral transmission is gaining importance. The first evidence of oral transmission was reported in Brazil in 1965. Nowadays the oral route is the transmission mode in 50% of cases in the Amazon river zone. Oral infection is produced by the ingestion of infected triatomine bugs or their feces, undercooked meat from infested host animals and food contaminated with urine or anal secretion of infected marsupials. Therefore travelers to those zones should be advised about care to be taken with ingested food. In Chile, this new mode of transmission should be considered in public health policies.
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