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

Márcio Neves Bóia²  Filipe Anibal Carvalho-costa²  Fernando Campos Sodré¹  Gloria Maria Trindade Pinto¹  Maria Regina Reis Amendoeira¹ 

[1] ,Fiocruz Instituto Oswaldo Cruz Laboratório de Doenças Parasitárias, Medicina TropicalRio de Janeiro RJ ,Brasil

关键词: Toxoplasma gondii;    Prevalence;    Indians;    Brazilian Amazon;    Iauareté;   

DOI  :  10.1590/S0036-46652008000100004

来源: SciELO

【 摘 要 】

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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