Schistosoma mansoni: níveis de infecciosidade para os moluscos hospedeiros intermediários do Brasil / Schistosoma mansoni: infectivity levels for intermediate snail hosts of Brazil
Rev. Soc. Bras. Med. Trop
;
29(1): 11-6, Jan.-Feb. 1996. tab
Artículo
en Portugués
| LILACS
| ID: lil-187167
RESUMO
The levels of infectivity of Schistosoma mansoni for the three species of Biomphalaria, intermediate hosts of parasite in Brazil were studied after exposing of molluscs to miracidia in the laboratory and in the field. The LE and SJ strains of S. mansoni, maintained in laboratory were used in these experiments as well as the WVS and RFS strains obtained from faeces of schoolchildren from Belo Horizonte, MG. The results show the high level of infectivity of S. mansoni for B. glabrata with infection rates varying from 4.7 to 85.5 per cent. The snail B. straminea was susceptible to LE, SJ and WVS strains, with infection rates of 11.0 to 24.6 per cent, B. tenagophila was susceptible only to LE and SJ strains with infection rates of 2.5 to 6.5 per cent. The mean number of cercariae of the WVS strain shed per day, by B. straminea and B. glabrata were 93 +/- 59 and 782 +/- 1,120, respectively.
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Índice:
LILACS (Américas)
Asunto principal:
Schistosoma mansoni
/
Biomphalaria
/
Vectores de Enfermedades
Límite:
Animales
/
Humanos
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Portugués
Revista:
Rev. Soc. Bras. Med. Trop
Asunto de la revista:
Medicina Tropical
Año:
1996
Tipo del documento:
Artículo
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