Daria Van Tyne, Ph.D. (IMAGE) University of Pittsburgh Caption Daria Van Tyne, Ph.D., assistant professor in the University of Pittsburgh School of Medicine’s Division of Infectious Diseases Credit University of Pittsburgh Usage Restrictions For use only in reporting on this study 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.