Ahh... this statement is an oxymoron... (they couldn't come up with a more convincing fact to supposedly debunk the myth?) that's exactly how you construct a "gain-of-function" virus, but using animal cells... Just sayin'Posted by Sophocles (here)
NATO 'factsheet':
...As confirmed by the World Health Organization (WHO), all available evidence suggests that SARS-CoV-2, the coronavirus causing COVID-19, has a natural origin in animals and is not a constructed virus.