Through the Educational Administration off ice, arntotal of 88 schools were screened in Western GojjamrnRegion using self administrated questionnaires. From 88rnrecovered questionnaires, based on the defined criteria,rnonly 68 questionnaires were accepted as properlyrncompleted. A total of 3580 students were interviewedrnthrough their teachers in four weeks time.rnFrom 3580 "indirectly" interviewed children,rnprevalences of 10.4%, 30.6% and 9.0% were found for thernthree markers; blood in stool, distended belly andrnschistosomiasis respectively. From 600 children screenedrnparasitologicaly in 10 schools, over all 90rnSchistosomiasis mansoni positives were found, yielding anrnestimated 15% prevalence rate for the region. A higherrninfection rate was found in males (17.5%) than femalesrn(12.9%) with an odds ratio of 1.64. A positive pearson'srncoefficient of correlation was found between thernquestionnaire and parasitological approaches in assessingrnthe prevalence of intestinal schistosomiasis in tenrnschools. A coefficient of correlation of 0.89, 0.69, andrn0 . 45 was found between the prevalence of schistosomiasis,rnprevalence of blood in the stool, and prevalence ofrndistended belly respectively, and the parasitologicalrnscreening.rnThe indirect interview approach is not onlyrnoperationally feasible, it isrnthirty times less costlyrnbiomedical approach. Thernalso four times faster andrnthan the correspondingrnpossible use of thernquestionnaire approach in the monitoring of ~. mansonirninfec tion is dis cussed.rnvi