The epidemiology of morbidity of schistosomiasis.
The epidemiology of schistosomiasis is changing because treatment of chronically infected individuals is often followed by reinfection. As a major goal of schistosomiasis control is the reduction of morbidity, direct assessment of disease is essential because infection status is a relatively poor indication of morbidity. Introduction of ultrasonography to the study of schistosomiasis and the increased appreciation of the effects of schistosomiasis on growth and development in children have greatly enhanced our understanding of schistosome-induced morbidity in endemic communities. Peter Wiest here reviews the changes in the assessment of schistosomiasis-induced morbidity.
Program in International Health, Department of Medicine, MetroHealth Medical Center, Case Western Reserve University, Cleveland, OH, 44109, USA. pwiest@metrohealth.org
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