What is it about?

In the semi-arid region of northeastern Brazil, Triatoma brasiliensis is the main Chagas disease vector. This insect has been studied molecularly by several approaches. We discovered an intimate relationship among Triatoma brasiliensis, rodents of the Caviidae family, and Trypanosoma cruzi - the parasite that causes Chagas disease. Whereas the rodent Kerodon rupestris is the main reservoir of T. cruzi in the wild environment, the other synanthropic - Galea spixii - is the reservoir in the anthropic (man-made) environments. The eco-epidemiological implications of this tripartite association are discussed in the study.

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Why is it important?

The findings were passed on to those in charge of public health surveillance and could help design vector control measures to avoid Chagasic outbreaks and sporadic infections.


We aim to understand the genetic basis involved in the adaptation of the insect to the environment occupied by humans.

Carlos Eduardo Almeida
Universidade Federal do Estado do Rio de Janeiro

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This page is a summary of: Dynamics of food sources, ecotypic distribution and Trypanosoma cruzi infection in Triatoma brasiliensis from the northeast of Brazil, PLoS Neglected Tropical Diseases, September 2020, PLOS, DOI: 10.1371/journal.pntd.0008735.
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