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The biggest mystery: what it will take to trace the coronavirus source

SARS-CoV-2 came from an animal but finding which one will be tricky, as will laying to rest speculation of a lab escape.
  1. David Cyranoski

    1. David Cyranoski reports for Nature from Shanghai, China.

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Since the pandemic began, the question of where the coronavirus came from has been one of the biggest puzzles. It almost certainly originated in bats, and a new study out this week — the most comprehensive analysis of coronaviruses in China — adds further weight to that theory.

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doi: https://doi.org/10.1038/d41586-020-01541-z

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