Schistosomiasis risk is present in the whole country, including urban areas:
Risk of S. haematobium and S. mansoni is present throughout the country. High incidence rates occur along the entire Sénégal River valley including the area of Lac de Guiers in the northwestern part of Saint-Louis Region. Additional snail intermediate host for S. haematobium: Bulinus jousseaumei.
Risk of Schistosomiasis caused by: Schistosoma haematobium, Schistosoma mansoni
The main intermediate host snail is: Bulinus truncatus, Bulinus senegalensis, Biomphalaria pfeifferi, see text above for additional intermediate snail host.