The Oldest Virus Ever Sequenced Comes From a 7,000-Year-Old Tooth

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The Oldest Virus Ever Sequenced Comes From a 7,000-Year-Old ToothSeven thousand years ago, in a valley that is today central Germany, a young man lay down to die. He was 25 or 30, and a farmer most likely. It is not known why he died young. But powerful genetic tools have now pulled out a tantalizing clue: the fragmented DNA of a virus that infected his liver all those millennia ago.


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