The schistosome worm causes schistosomiasis, which just might be the biggest parasitic disease you’ve never heard of. “You get it walking in water that's infected with infectious snails,” said Emmitt Jolly, associate professor of biology at Case Western Reserve University. “There are almost 240 million people infected with schistosomes, and about 300,000 people are dying.” Jolly is unravelling the genetics of the schistosome to find ways to attack it with drugs. Step one is to figure out which