Crypto Oocysts on Mini Guts (IMAGE) Washington University School of Medicine Caption The intestinal parasite Cryptosporidium (brown) grows on' mini-guts' (purple) in a dish. Researchers at Washington University School of Medicine in St. Louis have figured out how to grow the parasite in the lab, an achievement that will speed efforts to treat or prevent diarrhea caused by the parasite. Credit Georgia Wilke Usage Restrictions This image is to be used in accordance with the mission, policies and guidelines of Washington University in St. Louis. Visit https://wustl.edu/about/compliance-policies/media-policies/photo-use/ for more information. 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.