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The Impact of Control Measures on Urinary Schistosomiasis in Primary School Children in Northern Cameroon: A Unique Opportunity for Controlled Observations
Daniel Bausch
Daniel Bausch
Department of Tropical Medicine and Center for International Community-Based Studies, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana
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Barnett L. Cline
Barnett L. Cline
Department of Tropical Medicine and Center for International Community-Based Studies, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana
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As part of a program to integrate schistosomiasis control into the primary health care system in northern Cameroon, an unexpected opportunity to undertake a controlled evaluation of the impact of interventions was recognized. Inadvertently, a large part of Mindjil, one of four assessment villages, had been essentially excluded from the program, creating a unique natural control. The prevalence of infection with Schistosoma hematobium in school-aged children was 7% in the areas where the control program was implemented, and 71% in the excluded areas (P < 0.0002). High intensity infection was 1% and 26% in the two areas, respectively (P < 0.0002). Children in the school where the control interventions were implimented had a significantly lower prevalence of infection with Schistosoma hematobium (P < 0.005). Subjects in intervention areas demonstrated greater knowledge about the transmission of schistosomiasis than those in the control area. This study documented and quantified program impact in a controlled manner not usually possible in field studies and also illustrated how unrecognized intracultural diversity (within culture differences) in target populations may effect disease control programs in communities.
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| Past two years | Past Year | Past 30 Days | |
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