Trypanosoma cruzi infection in Leontopithecus rosalia at the Reserva Biológica de Poço das Antas, Rio de Janeiro, Brazil
Mem. Inst. Oswaldo Cruz
;
95(4): 445-52, July-Aug. 2000.
Artículo
en Inglés
| LILACS
| ID: lil-264223
ABSTRACT
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 120 to 11280 were observed in 52 per cent 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.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Trypanosoma cruzi
/
Callitrichinae
/
Enfermedad de Chagas
/
Enfermedades de los Monos
Tipo de estudio:
Estudio observacional
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Animales
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Mem. Inst. Oswaldo Cruz
Asunto de la revista:
Medicina Tropical
/
Parasitología
Año:
2000
Tipo del documento:
Artículo
País de afiliación:
Brasil
/
Estados Unidos
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