Resisting Schistosomiasis (IMAGE) Oregon State University Caption Researchers have discovered a group of genes in this snail, Biomphalaria glabrata, that conveys resistance to the parasite that causes schistosomiasis. Credit (Photo courtesy of Oregon State University) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.