2001
DOI: 10.1590/s0034-89102001000600005
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Abundância e infecção do molusco Biomphalaria glabrata pelo Schistosoma mansoni no Estado do Rio de Janeiro, Brasil

Abstract: OBJETIVOS: Investigar a distribuição espacial, a abundância e os índices de infecção natural de Biomphalaria glabrata, hospedeiro intermediário do Schistosoma mansoni, em localidade do Estado do Rio de Janeiro, RJ, Brasil. MÉTODOS: Na localidade de Pamparrão, município de Sumidouro, RJ, as coletas de moluscos foram realizadas bimestralmente no período de junho de 1991 a novembro de 1995. Foram estabelecidos 23 pontos de coleta ao longo do córrego Pamparrão e três de seus afluentes. Os moluscos capturados foram… Show more

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Cited by 22 publications
(17 citation statements)
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“…tions of B. glabrata (Say 1818) naturally infected by S. mansoni have been monitored in several habitats, as part of an eco-epidemiological study of schistosomiasis (Giovanelli et al 2001). After the invasion of M. tuberculatus in an irrigation channel, the population of B. glabratus suffered the greatest and more permanent impact observed during the five years of monitoring (Giovanelli et al 2004).…”
mentioning
confidence: 99%
“…tions of B. glabrata (Say 1818) naturally infected by S. mansoni have been monitored in several habitats, as part of an eco-epidemiological study of schistosomiasis (Giovanelli et al 2001). After the invasion of M. tuberculatus in an irrigation channel, the population of B. glabratus suffered the greatest and more permanent impact observed during the five years of monitoring (Giovanelli et al 2004).…”
mentioning
confidence: 99%
“…The landscape is composed of small rural properties and few small Atlantic Forest fragments, and is characterized as low endemicity area for schistosomiasis. Previous studies in this area showed the occurrence of Biomphalaria glabrata as the intermediate S. mansoni host (Giovanelli et al 2001) and the participation of the water-rat, N. squamipes as a definitive host for the trematoda .…”
Section: Methodsmentioning
confidence: 89%
“…The significant negative correlation observed between rodent prevalence and rainfall with four months lag indicates that rodent prevalence decreases in the end of the rainy season, and generally increases before the rainy periods. The snail populations are higher in the end of the dry season, because they are negatively influenced by the rainfall pattern (Giovanelli et al 2001). The dry period is the most favorable one for S. mansoni transmission due to the low volume of the streams' water, which turns easier the meeting of the parasite with the intermediary host (Giovanelli et al 2001).…”
Section: Discussionmentioning
confidence: 99%
“…The snail populations are higher in the end of the dry season, because they are negatively influenced by the rainfall pattern (Giovanelli et al 2001). The dry period is the most favorable one for S. mansoni transmission due to the low volume of the streams' water, which turns easier the meeting of the parasite with the intermediary host (Giovanelli et al 2001). Rodent population sizes increase after the rains, when the snail population declines due to the torrents in the streams, as well as the prevalences of both hosts.…”
Section: Discussionmentioning
confidence: 99%