Tim Sheahan, UNC-Chapel Hill (IMAGE) University of North Carolina at Chapel Hill Caption Dr. Timothy Sheahan in 2017 works in a lab at the UNC-Chapel Hill Gillings School of Global Public Health. Credit Photo Courtesy of Mary Lide Parker Usage Restrictions None 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.