A surface protease helps Yersinia pestis plow its way through the body during pneumonic plague. During the 14th through 16th centuries, Y. pestis caused a pandemic of plague that killed a third of ...
Scientists identified three cases of Yersinia pestis, the bacteria causing the plague, in human remains - two in a mass burial in Somerset, and one in a ring cairn monument in Cumbria. The team ...
See, the plague was actually caused by a bacterium called Yersinia pestis, spread by infected fleas and transported worldwide by rats. And the plague itself? Well, it never actually went away.