Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/9650
Title: Domestic, peridomestic and wild hosts in the transmission of Trypanosoma cruzi in the Caatinga area colonised by Triatoma brasiliensis
Authors: Bezerra, Claudia Mendonça
Cavalcanti, Luciano Pamplona de Góes
Souza, Rita de Cássia Moreira de
Barbosa, Silvia Ermelinda
Xavier, Samanta Cristina das Chagas
Jansen, Ana Maria
Ramalho, Relrison Dias
Diotaiut, Liléia
Affilliation: Secretaria de Saúde do Estado do Ceará. Programa de Pós-Graduação em Saúde Comunitária. Fortaleza, CE, Brasil/Secretaria de Saúde do Estado do Ceará. Fortaleza, CE, Brasil.
Universidade Federal do Ceará. Departamento de Saúde Comunitária. Fortaleza, CE, Brasil / Centro Universitário Christus. Fortaleza, CE, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisa René Rachou. Belo Horizonte, MG, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisa René Rachou. Belo Horizonte, MG, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biologia de Tripanosomatídeos. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biologia de Tripanosomatídeos. Rio de Janeiro, RJ, Brasil.
Secretaria de Saúde do Estado do Ceará. Fortaleza, CE, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisa René Rachou. Belo Horizonte, MG, Brasil.
Abstract: The role played by different mammal species in the maintenance of Trypanosoma cruzi is not constant and varies in time and place. This study aimed to characterise the importance of domestic, wild and peridomestic hosts in the transmission of T. cruzi in Tauá, state of Ceará, Caatinga area, Brazil, with an emphasis on those environments colonised by Triatoma brasiliensis. Direct parasitological examinations were performed on insects and mammals, serologic tests were performed on household and outdoor mammals and multiplex polymerase chain reaction was used on wild mammals. Cytochrome b was used as a food source for wild insects. The serum prevalence in dogs was 38% (20/53), while in pigs it was 6% (2/34). The percentages of the most abundantly infected wild animals were as follows: Thrichomys laurentius 74% (83/112) and Kerodon rupestris 10% (11/112). Of the 749 triatomines collected in the household research, 49.3% (369/749) were positive for T. brasiliensis, while 6.8% were infected with T. cruzi(25/369). In captured animals, T. brasiliensis shares a natural environment with T. laurentius, K. rupestris,Didelphis albiventris, Monodelphis domestica, Galea spixii, Wiedomys pyrrhorhinos, Conepatus semistriatus andMus musculus. In animals identified via their food source, T. brasiliensis shares a natural environment with G. spixii,K. rupestris, Capra hircus, Gallus gallus, Tropidurus oreadicus and Tupinambis merianae. The high prevalence of T. cruzi in household and peridomiciliar animals reinforces the narrow relationship between the enzootic cycle and humans in environments with T. brasiliensis and characterises it as ubiquitous.
Keywords: Triatominae
Triatoma brasiliensis
Trypanosoma cruzi
Hosts
semiarid
Issue Date: 2014
Publisher: Fundação Oswaldo Cruz
Citation: BEZERRA, Claudia Mendonça et al. Domestic, peridomestic and wild hosts in the transmission of Trypanosoma cruzi in the Caatinga area colonised by Triatoma brasiliensis. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 109, n. 7, p. 887-898, Aug. 2014.
DOI: 10.1590/0074-0276140048
ISSN: 1678-8060
Copyright: open access
Appears in Collections:IOC - Artigos de Periódicos
MG - IRR - Artigos de Periódicos

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