Cause of the big plague epidemic of Middle Ages identified
Monday, October 11, 2010 - 09:00
in Health & Medicine
(PhysOrg.com) -- The 'Black Death' was caused by at least two previously unknown types of Yersinia pestis bacteria.
(PhysOrg.com) -- The 'Black Death' was caused by at least two previously unknown types of Yersinia pestis bacteria.