Isolation of Toxoplasma gondii from capybaras (Hydrochaeris hydrochaeris) from São Paulo State, Brazil.
J Parasitol
; 94(5): 1060-3, 2008 Oct.
Article
en En
| MEDLINE
| ID: mdl-18576842
ABSTRACT
The capybara (Hydrochaeris hydrochaeris) is a large rodent used for human consumption in certain areas of South America. In the present study, viable Toxoplasma gondii was isolated for the first time from this host. Antibodies to T. gondii were assayed in the sera of 64 capybaras from 6 counties of São Paulo State, Brazil, using the modified agglutination test (MAT, > or =125 dilution) and the indirect fluorescent antibody test (IFAT, > or =116 dilution), and antibodies were found in 48 (75%) by MAT, and 49 (76.6%) by IFAT. Samples of brain, heart, and tongue of 40 seropositive capybaras were pooled, digested in pepsin, and bioassayed in mice. Toxoplasma gondii was isolated from tissue homogenates of 36 capybaras, and the isolates were designated TgCyBrl-36. Most isolates were lethal to mice; 17 of the 36 isolates killed 100% of infected mice, 11 isolates caused mortality in 25-90% of infected mice, and 8 isolates were nonpathogenic to mice. Results indicate that asymptomatic capybaras can harbor mouse-virulent T. gondii, and hence they can serve as a source of infection for humans.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Enfermedades de los Roedores
/
Toxoplasmosis Animal
Límite:
Animals
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
J Parasitol
Año:
2008
Tipo del documento:
Article
País de afiliación:
Brasil