COVID-19 vaccinations will not only help stop the virus from spreading, they will also hamper the coronavirus’ ability to mutate into new variants, Dr. Anthony Fauci said on Thursday.”Viruses don’t mutate unless they replicate,” Fauci, the director of the National Institute of Allergy and Infectious Diseases, said at a news briefing at the White House, his first under the administration of President Joe Biden.”And if