Dermo Time-Series (IMAGE) Virginia Institute of Marine Science Caption The sharp transition from the original form of Dermo (light blue) to contemporary (dark blue) in Chesapeake Bay (A), South Carolina (B), and New Jersey (C). Weighted prevalence in the Virginia panel is a conventional measure of Dermo disease in oyster populations, and shows that the change in Dermo's form in Virginia coincided with the increase in Dermo prevalence within Bay oysters. Credit © R. Carnegie/VIMS. Usage Restrictions One-time use only. 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.