Most very large changes is viral evolution is lateral transfer between viruses, rather than accumulation of point mutations. The better claim would be that this was acquired by a proto-SARS-CoV-2 virus that way, not that it was the result of cross-species changes alone.
Most very large changes is viral evolution is lateral transfer between viruses, rather than accumulation of point mutations. The better claim would be that this was acquired by a proto-SARS-CoV-2 virus that way, not that it was the result of cross-species changes alone.