Assessment of results of experimental control programmes.
D000293:Adolescent; D000328:Adult; D000349:Africa; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006801:Humans; D012423:Rural Health; D012547:Schistosoma / Q000302:isolation & purification; D012552:Schistosomiasis / Q000453:epidemiology / Q000517:prevention & control*; D012908:Snails