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Trypanosoma cruzi infection in Leontopithecus rosalia at the Reserva Biológica de Poco das Antas, Rio de Janeiro, Brazil.
Lisboa, C V; Dietz, J; Baker, A J; Russel, N N; Jansen, A M.
Afiliação
  • Lisboa CV; Departamento de Protozoologia, Instituto Oswaldo Cruz, Rio de Janeiro, Brasil.
Mem Inst Oswaldo Cruz ; 95(4): 445-52, 2000.
Article em En | MEDLINE | ID: mdl-10904398
Wild golden lion tamarins (Leontopithecus rosalia) - endangered primates that are native to the Brazilian Atlantic coastal forest - were surveyed for the presence of Trypanosoma cruzi with the use of Giemsa-stained blood smears, hemocultures and an indirect immunofluorescence assay (IFAT). Positive IFAT with titers ranging from 1:20 to 1:1280 were observed in 52% of the 118 wild tamarins examined and the parasite was isolated from 38 tamarins. No patent parasitemia was observed among the tamarins from which T. cruzi was isolated. Serum conversion and positive hemoculture was observed for three animals that had yielded negative results some months earlier, which indicates that T. cruzi is actively transmitted among tamarins. In contrast to observations with other sylvatic isolates, those from the tamarins were significantly more virulent and most of them produced mortality in experimentally infected Swiss mice. Some variation in the kDNA restriction profiles among the isolates was observed. Electrophoresis with GPI, G6PDH, IDH, MDH and ME enzymes showed a Z2 profile.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Trypanosoma cruzi / Callitrichinae / Doença de Chagas / Parasitemia / Doenças dos Macacos Tipo de estudo: Observational_studies / Prognostic_studies / Risk_factors_studies Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Mem Inst Oswaldo Cruz Ano de publicação: 2000 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Trypanosoma cruzi / Callitrichinae / Doença de Chagas / Parasitemia / Doenças dos Macacos Tipo de estudo: Observational_studies / Prognostic_studies / Risk_factors_studies Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Mem Inst Oswaldo Cruz Ano de publicação: 2000 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil