https://time.com/6244167/covid-19-variant-xbb15/ https://cdn.jwplayer.com/v2/media/WnmPuQgL/poster.jpg?width=720 Dr. Anthony Fauci Is Stepping Down. Here’s His Advice For His Successor Dr. Anthony Fauci is leaving his post as NIAID director and chief medical advisor to President Biden. He hopes to impart a few lessons. https://cdn.jwplayer.com/manifests/WnmPuQgL.m3u8 https://cdn.jwplayer.com/previews/WnmPuQgL 533 2022-12-20T20:53:36+00:00 no no