| Summary: | Tide prevalence of intestinal parasitosis ivas investigated in a primaiy school located in Rubiâo Júnior, a peri-urban district of Botucatu, São Paulo slate, Brazil, in order to assess the effect of treatment and practical measures of prophylaxis in the control of parasitic infections among 7-to- 18-year-old school children of a low socio-economic status. The first series of parasitological examinations included 219 school children, ef which 123 (56.1 %) were found to be infected with one or more parasite species. Eighty- four children canying pathogenic parasites were submitted to various anti-parasitic treatment schedules. We re-evaluated 15 (89 %) students after 4 to 6 months post- chemotherapy. The results indicate that the combination of treatment with prophylactic measures has been successful in the control of parasitic infections, since reinfection rates were generally low (< 5-3 %), except for Giardia lamblia infections (18.6 %), and a marked reduction oti the prevalence rates was obsewed with a significant percentage of cure (> 73-1 %) in children infected with most parasite species. The reasons for the apparent failure in the control of infections caused by Hymenolepis nana and Strongyloides stercoralis are discussed. Prôcedeu-se o estudo da prevalência de enteroparasitoses entre escolares de 7 a 18 anos, de condições sõcio-econômicas baixas e residentes no distritoperi-urbano de Rubião Júnior, município de Botucatu, São Paulo, com o objetivo de analisar o papel de medidas profiláticas e terapêuticas no controle das parasitoses diagnosticadas. Dos 219 alunos estudados na primeira avaliação parasitolõgica, 123 (56.1%) mostraram-se positivos para unia ou mais parasitoses. O tratamento foi aplicado para 84 escolares, por serem estes portadores de parasitos patogênicos. A segunda avaliação parasitolõgica foi realizada 4 a 6 meses após o tratamento em 75 (89%) escolares. Os resultados indicam que o uso combinado do tratamento e medidas profiláticas foi capaz de limitar a ocorrência de novas infecções ...
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