Control of parasitic infections among school children in the peri-urban area of Botucatu, Sao Paulo, Brazil
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1996-09-23
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The prevalence of intestinal parasitosis was investigated in a primary school located in Rubiao Junior, a peri-urban district of Botucatu, Sao Paulo state, 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, of which 123 (56.1%) were found to be infected with one or more parasite species. Eighty-four children carrying pathogenic parasites were submitted to various anti-parasitic treatment schedules. We re-evaluated 75 (89%) students after 4 to 6 months postchemotherapy. 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 on the prevalence rates was observed 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 Hymenolepsis nana and Strongyloides stercoralis are discussed.
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intestinal parasitosis , prevalence , prophylaxis , school children , treatment , levamisole , metronidazole , tiabendazole , adolescent , child , feces analysis , human , intestine parasite , intravenous drug administration , major clinical study , parasitosis , school child , social status , Adolescent , Brazil , Child , Female , Humans , Intestinal Diseases, Parasitic , Male , Prevalence , Suburban Health , Giardia intestinalis , hymenolepsis , hymenolepsis nana , Strongyloides stercoralis
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Revista da Sociedade Brasileira de Medicina Tropical, v. 29, n. 5, p. 425-430, 1996.