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Schistosomiasis is a chronic parasitic infection caused by worms. It is most common in rural and impoverished populations. In the Americas, the parasite species is Schistosoma mansoni, which is associated with intestinal schistosomiasis. The main risk factor for infection is exposure through household, work, or recreational activities in fresh water contaminated with feces from infected humans. In the Region, for transmission to occur, an intermediate Biomphalaria snail of host for the parasite must also be present in contaminated water. Children and adolescents are the populations at highest risk. Chronic infection can result in anemia, fibrosis of intestinal veins and the liver, spleen enlargement and, in serious cases, neurologic complications and even death. Schistosomiasis claims the lives of children and adults in the Americas each year.

General information about this disease

Gallery: Schistosomiasis

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