@CNN: Ancient DNA and a new technique have been used to determine the likely cause of a mystery epidemic in the 16th century that may have killed millions https://t.co/1uUlnYPbuq https://t.co/grMRqSiePH
Ancient DNA and a new technique have been used to determine the likely cause of a mystery epidemic in the 16th century that may have killed millions https://t.co/1uUlnYPbuq http://pic.twitter.com/grMRqSiePH
— CNN (@CNN) January 16, 2018