A New Way to Study Cryptosporidium (IMAGE) University of Pennsylvania Caption The parasite Cryptosporidium, transmitted through water sources, is one of the most common causes of diarrheal disease in the world. New inroads into modeling the disease--and preventing it with a vaccine--lay the groundwork for tackling the infection in humans. Here, A section of intestine from an infected mouse shows Cryptosporidium tyzzeri parasites in red. The University of Pennsylvania-led team is the first to sequence, study, and manipulate a naturally occurring mouse Cryptosporidium. Credit Muthgapatti Kandasamy, Adam Sateriale, and Boris Striepen Usage Restrictions In context of reporting 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.