LMAMR (IMAGE) University of Oklahoma Caption Ancient DNA shows that a likely zoonotic infection of tuberculosis spread far into inland regions of South America. Credit Left image provided by Elizabeth Nelson. Right image provided by Sarah Johnson. Usage Restrictions with credit 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.