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To evaluate how dangerous a novel disease can be, three factors are important: virulence (deadliness), transmission (how a disease spreads) and stealth (the ability to spread silently). ....
AYLIN WOODWARD, BUSINESS INSIDER 30 JUNE 2021 Five thousand years ago, a rodent bit a Stone Age hunter-gatherer. The creature carried a strain of pernicious bacteria called Yersinia pestis – the pathogen that caused the Black Death, or bubonic plague in the 1300s.
The bacteria likely killed the Stone Age man, who died in his 20s, according to a study published Tuesday. It s the oldest strain of plague known to science so far. The strain s genome closely resembles the version of plague that wrecked medieval Europe more than 4,000 years later, killing up to half the region s population over the course of seven years. But it s missing a few key genes – notably, traits that helped it spread. ....
Oldest Strain of Plague Ever Seen Was Found in 5,000-Year-Old Bones businessinsider.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from businessinsider.com Daily Mail and Mail on Sunday newspapers.