> Acquisition of a polybasic cleavage site is in many high path viruses, including H5 and H7 influenza or Newcastle virus
Interesting that a coronavirus could have acquired the furin cleavage site, and enhanced RBDs. Now it can leverage ACE2 and CD147.
Do you think it translocated with a lentivirus? RaTG13 is the closest known bat-CoV and it's spike is perhaps as divergent as 93%. In what species could a bat-CoV translocate with a lentivirus, whilst obtaining a significant number of synonymous substitutions?
