Seroprevalence of Toxoplasma gondii infection among indian people living in Iauareté, São Gabriel da Cachoeira, Amazonas, Brazil

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2008
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Instituto de Medicina Tropical
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Laboratório de Doenças Parasitárias, Medicina Tropical, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, RJ, Brasil / Disciplina de Doenças Infecciosas e Parasitárias, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
Laboratório de Doenças Parasitárias, Medicina Tropical, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, RJ, Brasil.
Departamento de Patologia, Universidade Federal Fluminense, Rio de Janeiro, RJ, Brasil.
Laboratório de Toxoplasmose, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, RJ, Brasil.
Laboratório de Toxoplasmose, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, RJ, Brasil.
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The goal of this survey was to estimate the seroprevalence of Toxoplasma gondii infection in Iauareté, a multiethnic Indian community in the upper Rio Negro basin. We carried out a cross-sectional survey (n = 260), in order to obtain serum samples and demographic data. The sample was randomly selected, by family conglomerate analysis. Serodiagnosis was performed by an enzyme-linked immunosorbent assay and indirect immunofluorescence. Prevalence of reactivity was 73.5% (191/260), being higher in the older-age groups, reaching 95.7% (44/46) in the group aged 50 years or more. The majority of seropositive subjects had titers equal to or less than 1:64. Seroprevalence was greater in Indians belonging to the Hupda ethnic group (p = 0.03). According to the present survey, Indian people living in Iauareté have a high prevalence of antibodies to T. gondii. Demographic concentration and urbanization within low sanitation and poor hygiene backgrounds, as well as unfiltered water consumption, may be related to the high frequency of T. gondii seroprevalence observed in the studied area.
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Amazonas, Brasil, Índios Sul-Americanos, Região Norte, Saúde de Populações Indígenas, Região Amazônica, Epidemiologia, Alto Rio Negro, Estudos Epidemiológicos, Doenças Infecciosas e Parasitárias
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BóIA, Márcio Neves; CARVALHO-COSTA, Filipe Anibal; SODRé, Fernando Campos; PINTO, Gloria Maria Trindade; AMENDOEIRA, Maria Regina Reis. Seroprevalence of Toxoplasma gondii infection among indian people living in Iauareté, São Gabriel da Cachoeira, Amazonas, Brazil. Revista do Instituto de Medicina Tropical de São Paulo, v. 50, n. 1, p. 17-20, 2008.
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0036-4665
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10.1590/S0036-46652008000100004
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