The snails spreading fever across Africa

By Meera Senthilingam, for CNN

Updated 1248 GMT (2048 HKT) February 9, 2016

Freshwater snails are a deadly presence in Lake Victoria where they help spread schistosomiasis, a parasitic disease infecting bodily organs.
Photos: Controlling snail fever across Africa
Freshwater snails are a deadly presence in Lake Victoria where they help spread schistosomiasis, a parasitic disease infecting bodily organs.
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Adult schistosoma worms live inside blood vessels where females then lay eggs which migrate through the intestine.