Author | Favre, Tereza C. | |
Author | Pieri, Otávio S. | |
Author | Zani, Luciana C. | |
Author | Ferreira, Jainne M. | |
Author | Domás, Glauce G. | |
Author | Beck, Lilian H. | |
Author | Barbosa, Constança S. | |
Access date | 2020-10-26T12:39:41Z | |
Available date | 2020-10-26T12:39:41Z | |
Document date | 2002 | |
Citation | FAVRE, Tereza C. et al. A Longitudinal Study on the Natural Infection of Biomphalaria straminea and B. glabrata by Schistosoma mansoni in an Endemic Area of Schistosomiasis in Pernambuco, Brazil. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 97, n. 4, p. 465-475, June 2002. | pt_BR |
ISSN | 0074-0276 | pt_BR |
URI | https://www.arca.fiocruz.br/handle/icict/44184 | |
Language | eng | pt_BR |
Publisher | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. | pt_BR |
Rights | open access | pt_BR |
Subject in Portuguese | Biomphalaria straminea | pt_BR |
Subject in Portuguese | Biomphalaria glabrata | pt_BR |
Subject in Portuguese | Schistosoma mansoni | pt_BR |
Subject in Portuguese | Infecção natural | pt_BR |
Subject in Portuguese | Estudo longitudinal | pt_BR |
Subject in Portuguese | Pernambuco | pt_BR |
Subject in Portuguese | Brasil | pt_BR |
Title | A Longitudinal Study on the Natural Infection of Biomphalaria straminea and B. glabrata by Schistosoma mansoni in an Endemic Area of Schistosomiasis in Pernambuco, Brazil | pt_BR |
Type | Article | pt_BR |
DOI | 10.1590/S0074-02762002000400003 | |
Abstract | The abundance of snail hosts and the rates of infection with Schistosoma mansoni were monitored monthly for
four years in two representative localities subjected to repeated chemotherapy of infected persons. Snail abundance
varied from 1.0 to 4.4 collected per person/minute/station for Biomphalaria straminea and from 0.1 to 7.0 for B. glabrata.
Infection rates of snails in nature varied from 0% to 15% for the former and from 0% to 70% for the latter species.
Human infection increased from 35.5% to 61.9% in the locality occupied by B. straminea, and decreased from 40.3%
to 20.8% in that occupied by B. glabrata. No relationship could be detected between human infection and the snail
variables. Despite seasonal variations, natural infection persisted throughout the monitoring period in both snail
species. It reached remarkably high levels in B. straminea when compared to those obtained by other authors
probably because of differences in methodology. It is recommended that longitudinal studies should be carried out
focally and periodically to avoid underestimating the prevalence of schistosome infection in snails. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Biologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Biologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Biologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Biologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Biologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Biologia. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Centro de Pesquisas Aggeu Magalhães. Departamento de Parasitologia. Recife, PE, Brasil. | pt_BR |
Subject | Biomphalaria straminea | pt_BR |
Subject | Biomphalaria glabrata | pt_BR |
Subject | Schistosoma mansoni | pt_BR |
Subject | Natural infection | pt_BR |
Subject | Longitudinal study | pt_BR |
Subject | Pernambuco | pt_BR |
Subject | Brazil | pt_BR |
e-ISSN | 1678-8060 | |