The initial epidemiological studies in the low endemicity schistosomiasis area in esteio, Rio Grande do Sul, the southernmost Brazilian State, 1997 to 2000
Mem. Inst. Oswaldo Cruz
;
99(5,supl.1): 73-78, Aug. 2004. ilus, tab
Artículo
en Inglés
| LILACS
| ID: lil-384483
RESUMO
Nor Biomphalaria glabrata neither Schistosoma mansoni were reported from Rio Grande do Sul, the southernmost Brazilian state before 1997. Their detection next to the Sinos River, Esteio, confirmed predictions of schistosomiasis expansion to the south. Parasitological examinations both in snails and fecal samples from the human population were performed from 1997 to 2000. The last 3 out of 5 surveys were performed after a preliminar serological screening procedure in a risk group identified at a population census. A total of 11 infected individuals were found infected and snails from 2 different sites were positive for S. mansoni. Samples from these 2 and other sites were identified as B. glabrata. Egg counts in feces were below 1 per gram in 6 out of 11 patients. Some socio-cultural perceptions of water contact activities next to the Sinos River may cause difficulties to control efforts, but they also may be partially acting against a very rapid increase in transmission intensity. The southernmost schistomiasis mansoni foci in Americas rise the alert for its ongoing expansion.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Esquistosomiasis
Tipo de estudio:
Estudio de etiología
/
Estudio de prevalencia
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Animales
/
Humanos
/
Masculino
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Mem. Inst. Oswaldo Cruz
Asunto de la revista:
Medicina Tropical
/
Parasitología
Año:
2004
Tipo del documento:
Artículo
/
Documento de proyecto
País de afiliación:
Brasil
Institución/País de afiliación:
Ministério da Saúde/BR
/
PUCRS/BR
/
Secretaria Estadual da Saúde do Rio Grande do Sul/BR
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