Scientists have found evidence of the oldest known plague, dating back about 5,500 years ago — some 200 years earlier than previously thought

Analyses of ancient DNA from hunter-gatherers near Lake Baikal in southeast Siberia around 5,500 years ago indicate that highly virulent Yersinia pestis emerged earlier than…

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…

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