Daria Van Tyne, Ph.D. (IMAGE) University of Pittsburgh Caption Daria Van Tyne, Ph.D., assistant professor of infectious diseases at the University of Pittsburgh School of Medicine Credit University of Pittsburgh Usage Restrictions For use only in reporting on the study detailed in this press release 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.