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Occupational and domiciliary contact with dogs as factors of risk to human infection with Toxocara larvae

The contact with dogs at home or place of work has been investigated as factors of risk in the occurrence of the visceral larva migrans syndrome caused by Toxocara, in man. Through the E.L.I.S.A. (enzyme-linked immunosorbent assay) technique, the presence of antibodies to Toxocara was searched in th...

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Published in:Revista do Instituto de Medicina Tropical de São Paulo 1988-10, Vol.30 (5), p.379-382
Main Authors: Chieffi, Pedro Paulo, Ueda, Mirthes, Camargo, Eide Dias, Souza, Ana Maria Carvalho de, Silva, Christina Leopoldo e, Nova, Arnaldo Villa, Guedes, Marilda L. da Silva
Format: Article
Language:eng ; por
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Summary:The contact with dogs at home or place of work has been investigated as factors of risk in the occurrence of the visceral larva migrans syndrome caused by Toxocara, in man. Through the E.L.I.S.A. (enzyme-linked immunosorbent assay) technique, the presence of antibodies to Toxocara was searched in the sera of 79 women who have been raising or had raised dogs at home in the last two years and 123 men, who were municipal public employees in charge of the capture and keeping of stray dogs. The control groups were constituted by 205 sera from women who denied domiciliary contact with dogs, at least in the last two years, and 139 sera from men whose occupation did not urge them to contact with dogs. A significant more elevated frequency of antibodies to Toxocara was observed among women with domiciliary contact with dogs; nevertheless, there was not a significant difference in the positive rates in the case of men with occupational contact with dogs. Investigou-se o papel do contacto com cães no domicílio e na atividade profissional como fatores de risco para transmissão de larvas de Toxocara sp. a seres humanos, acarretando a síndrome de larva migrans visceral. Através de técnica imunoenzimática (E.L.I.S.A.) pesquisou-se a presença de anticorpos anti-Toxocara no soro de 79 mulheres adultas, residentes no município de São Paulo, que possuíam, ou possuíram nos dois últimos anos, cães em seus domicílios e de 123 homens adultos, funcionários da Prefeitura Municipal de São Paulo, encarregados da captura de cães vadios e de sua manutenção em canis. Como controles utilizaram-se os soros de 205 mulheres adultas que não possuíram, nos dois últimos anos, cães em suas casas e de 139 homens adultos, cuja atividade profissional não os obrigava a manter contacto com cães. Os resultados indicaram que, nas condições do presente trabalho, a posse de cães no domicílio constitui fator de risco para transmissão de larvas de Toxocara a seres humanos, ao contrário do verificado para o contacto profissional com cães.
ISSN:0036-4665
1678-9946
0036-4665
DOI:10.1590/S0036-46651988000500008