Tooth from medieval Jewish cemetery (IMAGE) Cell Press Caption This image shows a tooth collected from the medieval Jewish cemetery in Erfurt, Germany. Researchers collected 38 teeth from the excavation site, from which they extracted ancient DNA from 33 individuals. Credit David Reich ancient DNA laboratory / Harvard Medical School Usage Restrictions Credit must be given to the creator. Adaptations must be shared under the same terms. License CC BY-SA 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.