'I will guarantee you' Delta surge reverses with vaccines, protocols - Fauci

When asked by a reporter if the coronavirus could mutate to a point at which it would "overtake the vaccine", Fauci explained that viruses mutate when they are able to replicate, "and so the easiest way to prevent the scenario that you're proposing could happen would be to get as many people vaccinated as quickly as we possibly can, to not allow the virus to continue to circulate in the community, giving it ample time to mutate."