Hannah Meredith, Duke University (IMAGE) Duke University Caption This is Hannah Meredith, postdoctoral researcher at the London School of Hygiene and Tropical Medicine. Credit Amanda Dixon, Duke University 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.