Pangolins and the origin of SARS-CoV-2 coronavirus

A coronavirus related to SARS-CoV-2 has been isolated from Malayan pangolins illegally imported into Guangdong province. It is not the precursor of SARS-CoV-2, but comparison of viral genome sequences provides further evidence that the virus currently infecting humans was not produced in a laboratory. There are two important sequences in the viral spike glycoprotein (pictured) …

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