Data/hora: 11/06/2024 16:01:23

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 14/10/2008
Data da última atualização: | 25/03/2010
Autoria: | HERRERA, H. M.; LISBOA, C. V.; PINHO, A. P.; OLIFIERS, N.; BIANCHI, R. C.; ROCHA, F. L.; MOURÃO, G. M.; JANSEN, A. M.
Afiliação: | Heitor Miraglia Herrera, Fundação Oswaldo Cruz; Cristiane Varella Lisboa, Fundação Oswaldo Cruz; Ana Paula Santos de Pinho Sequeira, Fundação Oswaldo Cruz; Natalie Olifiers, Fundação Oswaldo Cruz; Rita de Cássia Bianchi, UFMS; Fabiana Lopes Rocha, Fundação Oswaldo Cruz; Guilherme de Miranda Mourão, Embrapa Pantanal; Ana Maria Jansen-Franken, Fundação Oswaldo Cruz.
Título: | The coati (Nasua nasua, Carnivora, Procyonidae) as a reservoir host for the main lineages of Trypanosoma cruzi in the Pantanal region, Brazil.
Ano de publicação: | 2008
Fonte/Imprenta: | Transactions of the Royal Society of Tropical Medicine and Hygiene, v.102, n. 11, p. 1133-1139, 2008.
Idioma: | Inglês
Conteúdo: | We have focused on the role played by a carnivore, the coati (Nasua nasua), in the  transmission cycle of Trypanosoma cruzi in the Brazilian Pantanal biome. We collected data during 2000/01 and 2005-07. Prevalence and pattern of T. cruzi infection were determined by serological tests and hemoculture. Isolates were characterized by miniexon molecular assay. Our results demonstrate that T. cruzi transmission cycle among coatis in the southern Pantanal seems to be well established, as we found high serum prevalences and high parasitemias throughout the two studied periods. Single infections by TCII (32.1%), TCI (28.0%) and Z3 (7.1%) were observed. Mixed infections by TCI/TCII (10.7%) and TCI/Z3 (3.6%) were also detected. Distinct genotypes of T. cruzi could be recovered during the 8 months follow-up of the same animals. As free-living coatis have high densities and inhabit all habitats, they may play an important role in the maintenance and dispersion of the main T. cruzi subpopulations. Considering that the Pantanal connects some of the major biomes of South America, it may be acting as a corridor for the spread of the main T. cruzi subpopulations. Our data give support that predator-prey links are important mechanisms for T. cruzi transmission and perpetuation in the wild.
Palavras-Chave: | Genotypes; Reservoir host; Transmission.
Thesagro: | Trypanosoma Cruzi.
Thesaurus Nal: | Brazil; Nasua nasua.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (56694-1) - UPC - SP - -- - SP16965 -  - 16965 - DIS