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Mem Inst Oswaldo Cruz ; 82(4): 475-82, 1987.
Artigo em Inglês | MEDLINE | ID: mdl-3333944

RESUMO

Immunofluorescence tests (IF) for toxoplasmosis were performed on a total of 608 schoolchildren in elementary and junior high grades. 166 being in the Bonsucesso district (an urban region of Rio de Janeiro) and 442 children from locations within the lowlands of Jacarepaguá (with rural characteristics). All the IF-IgM were nonreactive, whilst 416 schoolchildren (68.4%) were IF-IgG serum-reactive (greater than or equal to 1:16). The percentages of serum-reactives in Jacarepaguá were significantly higher than in Bonsucesso, both as regards the total number of schoolchildren (p less than 0.001), as also when subdivided according to the age-grades from six to eight years (p less than 0.001) or from twelve to fourteen (p less than 0.05). Both in Jacarepaguá and in Bonsucesso, the prevalence of reactions in the 12 to 14 year age-grade was significantly greater than in the 6 to 8 year age-grade (p less than 0.001 in both cases). Expressively larger prevalences of serum reactions were found in Jacarepaguá among schoolchildren who preferred eating raw or undercooked meat, as well as among those having cats as pets; this occurred equally in the 6 to 8 year and in the 12 to 14 year age-grades. In Bonsucesso, the only significant difference was in the 6 to 8 year age-grades that had cats as pets. Thus, it has been verified that the risk of infection is greater and more precocious in localities with rural characteristics than in urban regions.


Assuntos
Anticorpos Antiprotozoários/análise , Imunoglobulina G/análise , Toxoplasmose/epidemiologia , Adolescente , Animais , Brasil , Criança , Estudos Transversais , Feminino , Imunofluorescência , Humanos , Imunoglobulina M/análise , Masculino , Toxoplasma/imunologia , Toxoplasmose/imunologia
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