Identification of blood meal sources in species of genus Rhodnius in four different environments in the Brazilian amazon.

Autor:	Bilheiro AB; Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal de São João del Rei, Divinópolis, MG, Brazil. Electronic address: adrianabbilheiro@hotmail.com., Costa GDS; Programa de Pós-Graduação em Biologia Experimental, Fundação Universidade Federal de Rondônia, BR 364, Km 9.5, Porto Velho, RO, Brazil, 76801-059; Fundação Oswaldo Cruz/Fiocruz Rondônia, Porto Velho, Brazil., Araújo MDS; Fundação Oswaldo Cruz/Fiocruz Rondônia, Porto Velho, Brazil. Electronic address: maisaraujo@gmail.com., Ribeiro WAR; Curso de Graduação em Farmácia Generalista, UNESC, Vilhena, RO, Brazil., Medeiros JF; Programa de Pós-Graduação em Biologia Experimental, Fundação Universidade Federal de Rondônia, BR 364, Km 9.5, Porto Velho, RO, Brazil, 76801-059; Fundação Oswaldo Cruz/Fiocruz Rondônia, Porto Velho, Brazil., Camargo LMA; Instituto de Ciências Biomédicas 5, Universidade de São Paulo (ICB-5, USP), Monte Negro, Brazil; Centro de Pesquisa em Medicina Tropical de Rondônia (CEPEM)/Secretaria de Estado da Saúde de Rondônia, Porto Velho, Brazil; Instituto Nacional de Epidemiologia da Amazônia Ocidental INCT-EPIAMO, Porto Velho, Brazil; Departamento de Medicina, Centro Universitário São Lucas, Porto Velho, Brazil.
Jazyk:	angličtina
Zdroj:	Acta tropica [Acta Trop] 2022 Aug; Vol. 232, pp. 106486. Date of Electronic Publication: 2022 May 04.
DOI:	10.1016/j.actatropica.2022.106486
Abstrakt:	Chagas disease is a zoonotic disease caused by the hemoflagellate Trypanosoma cruzi and transmitted primarily by triatomine vectors. Triatomines are hematophagous insects that feed on a variety of vertebrate hosts. The Chagas disease transmission cycle is closely related to the interactions between vectors, parasites, and vertebrate hosts. Knowledge of triatomine food sources is critical to understanding Chagas disease transmission dynamics. The aim of this study was to identify blood meal sources used by triatomines from different environments in the Brazilian Amazon. A total of 25 captures were conducted in four environments. Triatomine specimens were captured on palm trees and were identified by morphological and morphometric characters. Blood meal sources identification was conducted using a traditional PCR followed by Sanger sequencing of mtDNA cytb gene. Sequencing was successful in 167 specimens and a total of 21 blood meal sources were identified: two reptilians, six birds, and 13 mammals. Among these 21 species, three (Tamandua tetradactyla, Didelphis marsupialis and Rattus rattus) are considered reservoir of T. cruzi. Knowledge of the relationship between triatomines and possible reservoirs can help to elucidate the enzootic cycle of T. cruzi in the Amazon region and guide control strategies for Chagas disease transmission in that region. (Copyright © 2022 Elsevier B.V. All rights reserved.)
Databáze:	MEDLINE
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