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/adchoicesNPR Privacy Policy
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