Schistosoma mansoni EM (image) University of Illinois at Urbana-Champaign Share Print E-Mail Caption Infection with the parasite Schistosoma mansoni afflicts about 230 million people around the world, most in impoverished areas without access to clean water. Credit Jim Collins and Ana Vieira Usage Restrictions Image may be used only to accompany stories about the research described in this release. Credit required: Jim Collins and Ana Vieira Share Print E-Mail 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.