On Tuesday afternoon, the U.S. government recommended that almost every American begin taking a new annual vaccine for Covid, a milestone in the nation’s three-year battle against the virus.Apoorva Mandavilli, a science and global health reporter for The New York Times, explains why the era of booster shots is now over and how to navigate this latest uptick in infections.Guest: Apoorva Mandavilli, a science and global health reporter for The New York Times.Background reading: The C.D.C. recommended all Americans aged 6 months and older should get at least one dose of new Covid vaccines.Covid continues to rise, but experts remain optimistic.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.  Subscribe today at nytimes.com/podcasts or on Apple Podcasts and Spotify. You can also subscribe via your favorite podcast app here https://www.nytimes.com/activate-access/audio?source=podcatcher. For more podcasts and narrated articles, download The New York Times app at nytimes.com/app.