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Seroepidemiology of toxoplasmosis in women of childbearing age from a marginal community of Maracaibo, Venezuela Soroepidemiologia da toxoplasmose em mulheres em idade fértil em comunidade marginal de Maracaibo, Venezuela

The aim of this study was to determine the prevalence of anti-T. gondii total and IgM antibodies in women of childbearing age. One hundred serum samples of women were studied with age range from 11 to 45 years old. Samples were chosen by random. The determination of total antibodies was carried out...

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Published in:Revista do Instituto de Medicina Tropical de São Paulo 2009-02, Vol.51 (1), p.13-17
Main Authors: Odelis Diaz-Suárez, Jesus Estevez
Format: Article
Language:English
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Summary:The aim of this study was to determine the prevalence of anti-T. gondii total and IgM antibodies in women of childbearing age. One hundred serum samples of women were studied with age range from 11 to 45 years old. Samples were chosen by random. The determination of total antibodies was carried out through the indirect hemagglutination technique and IgM antibodies by ELISA's technique. The statistical analysis was carried out through the Chi square and the Spearman correlation tests. The theoretical estimated incidence of congenital toxoplasmosis was calculated, according to the annual increment of antibody prevalence among the age groups. The overall prevalence of toxoplasmosis was 33%, while only six individuals (18.2%) were positive to IgM. The highest prevalence was observed in the 11-35 year-old age group. The theoretical estimated incidence was 1.5 for 100 pregnancies in women of 21-25 year-old group; it decreased until 0.1% in the 41-45 year-old age group. The findings show a high prevalence of toxoplasmosis in this community with a high infection risk in women of the studied age group and the high cat population observed, suggesting that the transmission way by contaminated soils may play a main role in the spreading of toxoplasmosis in this community.A finalidade do presente estudo foi determinar a prevalência de anticorpos totais e IgM anti-Toxoplasma gondii, em mulheres em idade fértil. Estudaram-se 100 amostras de soro de mulheres com idade entre 11 e 45 anos. Amostras foram escolhidas ao acaso. A determinação de anticorpos totais foi realizada com a técnica de hemaglutinação indireta e a determinação de anticorpos IgM, pela técnica de ELISA. A análise estatística foi realizada usando a prova do Chi quadrado e a correlação de Spearman. A incidência teórica estimada da toxoplasmose congênita foi calculada de acordo com o incremento anual da prevalência de anticorpos entre os diversos grupos de acordo com a idade. A prevalência geral de toxoplasmose foi de 33%, enquanto somente seis pacientes (l8,2%) foram positivos para IgM. A prevalência maior foi observada no grupo de 11-35 anos de idade. A incidência teórica estimada foi de 1,5 por 100 mulheres grávidas no grupo de 21-25 anos de idade; diminuiu até 0,1% no grupo de 41-45 anos de idade. Os resultados obtidos refletem alta prevalência de toxoplasmose nesta comunidade, além de alto risco de infecção nas mulheres no grupo de idade estudado, sugerindo-se que a transmissão através de fezes de gato,
ISSN:0036-4665
1678-9946
DOI:10.1590/S0036-46652009000100003