Gloria Meade (IMAGE) National Institute of Food and Agriculture Caption In studies to measure virus uptake and depletion rates, technician Gloria Meade inoculates a tank of oysters with hepatitis A virus. Credit Photo by Stephen Ausmus. Usage Restrictions The image may only be used with appropriate caption or credit. 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.