Infecção por Trypanosoma cruzi em animais silvestres procedentes de zoológicos do Estado de São Paulo

• Autor(a) principal: Zetun, Carolina Ballarin [UNESP]
• Data de Publicação: 2014
• Outros Autores: Lucheis, Simone Baldini, Troncarelli, Marcella Zampoli [UNESP], Langoni, Helio [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://www.fmvz.unesp.br/rvz/index.php/rvz/article/view/525; http://hdl.handle.net/11449/140894
• topic: Trypanosoma cruzi; Hemoculture; PCR; Wild animals; Zoo; Trypanosoma cruzi; Hemocultura; PCR; Animales silvestres; Zoológico; Trypanosoma cruzi; Hemocultura; PCR; Animais silvestres; Zoológico

Chagas disease (or American Trypanosomiasis) is an essentially chronic zoonosis caused by Trypanosoma cruzi (T. cruzi) protozoa. In the wild cycle, wild Triatominea insects are important vectors. They can transmit the protozoa to rodents, marsupials and to other wild animals, which are important reservoirs. Due the increasing destruction of the wild animals' natural environment, they are being forced to change its habitat. Moreover, the disease-vector insects can become adapted to different food alternatives in next-domiciliary and/or intradomiciliary areas. All these conditions can determine the increase of human disease’s incidence. Considering the importance of wild animals as T.cruzi reservoirs, the objective of this study was to evaluate by hemoculture and PCR, the Trypanosoma natural infection in some wild animals collected from three zoos in Sao Paulo state. It was collected blood samples from three Crab-eating Fox (Cerdocyon thous), three Coati (Nasua nasua), one Opossum (Didelphis marsupialis), one Ocelot (Felis pardalis), one Grey-Brocket Deer (Mazama gouazoubira), five Nine-Banded Armadillo (Dasypus novemcinctus), and one wildlife Giant Anteater (Myrmecophaga tridactyla). Two of three blood samples of Crab-eating fox were both positive by hemoculture and PCR. However, one negative sample by hemoculture was positive by PCR. Results show the importance of the Crab-eating fox as T.cruzi reservoir and its epidemiological importance in the Chagas' disease cycle.