Schistosomiasis risk is present in most of the country, except areas described:
Saudi Arabia has implemented Schistosomiasis control and elimination programs resulting in reduced prevalence of the disease. S. haematobium and S. mansoni has been reported throughout the country except in the regions of Eastern, Al-Qassim and Northern Borders. Additional snail intermediate hosts for S. haematobium: Bulinus beccarii and Bulinus wrighti.
Risk of Schistosomiasis caused by: Schistosoma haematobium, Schistosoma mansoni
The main intermediate host snail is: Bulinus truncatus, Biomphalaria arabica, see text above for additional intermediate snail host.