Researchers found that this type of ancient plague evolved long before bubonic plague

Long before it evolved the genetic machinery that would help make bubonic plague one of history's most feared diseases, the bacterium Yersinia pestis was already capable of…

Discovery in Siberia suggests bacterium from raw marmots devastated hunter-gatherer tribes about 5,500 years ago

Graves of hunter-gatherers in Siberia point to a deadly disease outbreak dating to some 5,500 years ago, a new DNA analysis finds