Biomphalaria spp. (Preston, 1910) snails in the municipality of Juiz de Fora, Zona da Mata Mineira mesoregion, ate of Minas Gerais, Brazil

• Autor(a) principal: Tibiriçá,Sandra Helena Cerrato
• Data de Publicação: 2006
• Outros Autores: Bessa,Elisabeth Cristina Almeida, Mittherofhe,Adalberto, Castro,Milton Ferreira de, Carvalho,Omar dos Santos, Caldeira,Roberta Lima, Passos,Liana Konovaloff Jannotti, Mattos,Ana Márcia Menezes de, Pinheiro,Liliane Sena, Silva,Dirany Sacramento e, Bastos,Fabiana Oliveira, Andreoli,Gabriela Quirino, Bonato,Glauco Resende, Coimbra,Elaine Soares
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Memórias do Instituto Oswaldo Cruz
• Texto Completo: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762006000900028
• topic: Biomphalaria; Biomphalaria straminea; schistosomiasis; geographic distribution; Juiz de Fora; Brazil

This study focuses on the geographic distribution of the snail of the genus Biomphalaria and evaluates its infectivity by Schistosoma mansoni in 5264 specimens collected in the municipality of Juiz de Fora, Minas Gerais, Brazil. Of the 31 locations studied, 6 were reservoirs, 11 rudimentary holding ponds, 7 irrigation ditches, 5 lakes, 1 ornamental pond, and 1 waterfall. Intermediate hosts were found only in the rudimentary ponds and ditches, which were 100% positive. Using morphological and molecular analysis techniques, B. tenagophila, B. peregrina, and B. straminea were identified. This is the first report of B. stramínea in the municipality, and evaluation of its infective potential revealed susceptibility of 25.4%. Although we did not find specimens of Biomphalaria infected by S. mansoni, the data obtained indicate the presence of intermediate hosts, especially in the irrigation ditches in Juiz de Fora, and their proximity to contaminated areas.