Triatomine home invasions in active foci of Chagas disease in Abaetetuba, Pará, Brazil.
Mota, Bruna Daniele Lisboa
Valente, Vera da Costa
Ramos, Francisco Lúzio de Paula
Valente, Sebastião Aldo da Silva
Pinto, Ana Yecê das Neves
Background: Chagas disease is a parasitic infection with high re-emergence rates in some Amazon regions. The main vectors of Trypanosoma cruzi are haematophagous insects, the triatomines. Only a few reports are available about the occurrence of these wild vectors and their contact with the inhabitants of the riverside regions of the Amazon. This study describes the unusual behaviour of the triatomines that have invaded the homes of the residents of Abaetetuba, the city that has the second highest number of cases of Chagas disease. Methods: Two cross-sectional studies were conducted using sero-epidemiological surveys of the inhabitants of Abaetetuba with registered triatomine home invasions. The frequencies of the variables of interest were analysed using Epi Info version 7.2. Results: In 2014 and 2017, 145 persons registered home invasions of triatomines in their domiciles and 16.55% reported having been bitten by insects. The environmental features described indicated potential conditions for the persistence of the parasite's life cycle. Of the enrolled inhabitants, 0.47% were positive for immunoglobulin G anti-T. cruzi antibodies. Conclusions: Home invasions of triatomines were confirmed in two periods, with a description of unusual behaviour for the genus Rhodnius. The use of serological surveillance in human populations at risk of this occurrence may constitute a new tool for the early detection of silent infections.
xmlui.dri2xhtml.METS-1.0.item-citationMOTA, Bruna Daniele Lisboa et al. Triatomine home invasions in active foci of Chagas disease in Abaetetuba, Pará, Brazil.Transactions of The Royal Society of Tropical Medicine and Hygiene, v. xx, n. xx, Apr. 2021.
xmlui.dri2xhtml.METS-1.0.item-decsPrimaryDoença de Chagas / patologia
Insetos / anatomia & histologia
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