Why scientists are struggling to show how the coronavirus passed to people

Why scientists are struggling to show how the coronavirus passed to people
Why scientists are struggling to show how the coronavirus passed to people

Nature, Published online: 05 June 2020; doi:10.1038/d41586-020-01541-z

SARS-CoV-2 came from an animal but finding which one will be tricky, as will laying to rest speculation of a lab escape.Why scientists are struggling to show how the coronavirus passed to people
Source: Nature