Better Vector Manufacturing (IMAGE) University of Pennsylvania School of Medicine Caption A re-examination of capsid structural data reveals evidence for alterations at several sites. Credit Lakshmanan Govindasamy, Penn Medicine Usage Restrictions No restrictions 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.