SCHISTOSOMIASIS IN NORTHERN MOZAMBIQUE

A survey of 12 schools in Cabo Delgado, northern Mozambique, was perfo rmed to assess the extent of schistosomiasis infection. Questionnaires validated by parasitological examination of stools and urine were use d. Very high prevalences of Schistosoma haematobium infect-ion were fo und in all schools (77.5% was the lowest recorded), so the questionnai res did not distinguish 'high risk' schools. However, they clearly ind icated a good knowledge of the infection by students and teachers. The disease was recognized by teachers to be a public health problem in t he area. S.,mansoni infection was rare. It had not been reported in pr evious surveys, but its vector Biomphalaria was discovered in the area . Revised mapping of the disease is advisable in view of probable chan ges after many years of conflict.