An analysis of ancient Siberians’ DNA suggests that the plague bacterium, Yersinia pestis, infected people living just west of Lake Baikal (shown) by around 4,400 years ago.
avdeev007/E+/Getty Images
An analysis of ancient Siberians’ DNA suggests that the plague bacterium, Yersinia pestis, infected people living just west of Lake Baikal (shown) by around 4,400 years ago.
avdeev007/E+/Getty Images