“I think we’ve moved on too quickly,” Farrar said, noting he fears there’s a “non-zero” risk that Covid will mutate again to a form where it causes more severe disease. “I don’t think we would go back to March 2020…. Five or six billion people have been infected globally, and we’ve all got some degree of protection against severe disease, which is what we care about. But I do think we’re playing with fire with this level of community transmission.”

https://www.statnews.com/2022/12/13/who-names-jeremy-farrar-director-of-the-wellcome-trust-as-chief-scientist/