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REASSESSING THE ENTOMOLOGICAL INVESTIGATION AROUND THE FIRST AUTOCHTHONOUS CASE OF CHAGAS DISEASE IN WESTERN BRAZILIAN AMAZON
Affilliation
Fundação de Medicina Tropical do Amazonas. Gerência de Entomologia. Manaus, AM, Brasil.
Universidade Federal do Amazonas. Faculdade de Medicina. Manaus, AM, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Sistemática Bioquímica. Rio de Janeiro, RJ. Brasil.
Universidade Federal do Amazonas. Faculdade de Medicina. Manaus, AM, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Sistemática Bioquímica. Rio de Janeiro, RJ. Brasil.
Abstract
In 1979, the first autochthonous case of Chagas disease in the Western Brazilian Amazon was reported and an
entomological survey was carried out around it. Specimens of Rhodnius pictipes and Rhodnius robustus were collected
in intradomicile and sylvatic ecotopes. Adult bugs were infected with trypanosomatids. Invasion of houses by
triatomines was demonstrated and the presence of infected bugs inside dwellings was associated with the possibility
of vector-borne Chagas disease. Continuous entomological surveillance employing additional taxonomic tools is
needed in the Brazilian Amazon in order to better understand the dynamics of house invasion by sylvatic triatomines
and the risk of Trypanosoma cruzi infection transmission.
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