Hendrik Poinar, McMaster University (IMAGE) McMaster University Caption Hendrik Poinar, Director of McMaster University's Ancient DNA Centre, led research that recasts previous inclusions about what had infected a 16th century child long believed to have suffered from smallpox, when in fact the infection was apparently hepatitis B . Credit JD Howell, McMaster 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.