Black Death and plague 'not linked'

They looked at bishops' records which show that many priests died during the epidemic.

Dr James Wood, professor of anthropology at Penn State University, said: "These records indicate the spread of the Black Death was more rapid than we formerly believed.

"This disease appears to spread too rapidly among humans to be something that must first be established in wild rodent populations, like bubonic plague."

Modern bubonic plague typically needs to reach a high frequency in the rat population before it spills over into the human community via rodent fleas.
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thanks to reenhead.com