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https://www.arca.fiocruz.br/handle/icict/15710
EVALUATION OF AN IMPROVED APPROACH USING RESIDENCES OF SCHISTOSOMIASIS-POSITIVE SCHOOL CHILDREN TO IDENTIFY CARRIERS IN AN AREA OF LOW ENDEMICITY
Author
Affilliation
Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Laboratorio de Helmintiases Intestinais. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Laboratorio de Helmintiases Intestinais. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Laboratorio de Epidemiologia e Antropologia Medica. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Laboratorio de Educação Em Saude. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Laboratorio de Esquistossomose. Belo Horizonte, MG, Brasil
Universidade Federal de Minas Gerais. Departamento de Estatistica. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Laboratorio de Educação Em Saude. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Laboratorio de Helmintiases Intestinais. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Laboratorio de Epidemiologia e Antropologia Medica. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Laboratorio de Educação Em Saude. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Laboratorio de Esquistossomose. Belo Horizonte, MG, Brasil
Universidade Federal de Minas Gerais. Departamento de Estatistica. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Laboratorio de Educação Em Saude. Belo Horizonte, MG, Brasil
Abstract
School children were used as indicators for the identification of schistosomiasis-positive family members in a area of low endemicity. This study was designed to improve current schistosomiasis control programs by applying this strategy to identify schistosomiasis-positive individuals in a more efficient way. The initial prevalence among school children was 8.6%. However, the prevalence among the family members of these school children increased to 15.5%. In contrast to these findings the prevalence in family members of schistosomiasis-negative school children was 3.8%.
Although the applied methodology showed a relatively low sensitivity (50.0%), the high negative predictive value (87.7%) indicates that a few positive family members of school children with a negative stool result will be missed. This shows that this method of evaluation could be a strategy for a more efficient and cheaper identification of schistosomiasis- positive individuals in areas of low endemicity.
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