As of WHO report in 2016, 206.5 million people worldwide are having schistosomiasis due to different species of Schistosoma. More than 105 million people were given medical treatment.<unk>  is the major species causing an annual death of about 130,000. It is endemic in 55 countries and most prevalent in Africa, the Middle East, the Caribbean, Brazil, Venezuela and Suriname. About 80-85% of schistosomiasis is found in sub-Saharan Africa, where S. haematobium, S. intercalatum and<unk>  are endemic. Approximately 393 million Africans are at risk of infection from<unk> , of which about 55 million are infected at any moment. Annual death due to<unk>  is about 130,000. The prevalence rate in different countries of Africa are: 73.9% in northern Ethiopia, 37.9% in western Ethiopia, 56% in Nigeria, 60.5% in Kenya, 64.3% in Tanzania, 19.8% in Ghana, and 53.8% in Côte d'Ivoire. In Egypt, 60% of the population in the Northern and Eastern parts of the Nile Delta and only 6% in the Southern part are infected.<unk>  is commonly found in places with poor sanitation. Because of the parasite's fecal-oral transmission, bodies of water that contain human waste can be infectious. Water that contains large populations of the intermediate host snail species is more likely to cause infection. Young children living in these areas are at greatest risk because of their tendency to swim and bathe in cercaria-infected waters longer than adults . Anyone travelling to the areas described above, and who is exposed to contaminated water, is at risk of schistosomiasis.
Schistosoma mansoni
Schistosoma japonicum
Taenia asiatica
Schistosoma haematobium
Taenia solium
Echinostoma cinetorchis
Taenia saginata
Trichuris trichiura