Schistosoma mansoni egg (IMAGE) McMaster University Caption Schistosoma mansoni egg recovered from the medieval latrine in Bruges. Black bar represents 20 µm. Credit Marissa Ledger, McMaster University Usage Restrictions none License Original 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.