On Tuesday, the Centers for Disease Control and Prevention changed its guidance on wearing masks. Short Wave co-host Maddie Sofia and NPR health correspondent Allison Aubrey explain what's changed and why. Plus, the latest on the Delta variant, a highly transmissible strain of the coronavirus. Want to see how widespread COVID-19 is in your local community? *Check out this data tracker from NPR. *)Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)
