Double-masking: Why some infectious disease experts say it's a good idea
Double-masking: Why some infectious disease experts say it's a good idea Wearing a mask is crucial in slowing the spread of COVID-19, and now some infectious disease experts say it's a good idea to wear two. Social Sharing Posted: Jan 29, 2021 5:00 AM CT | Last Updated: January 29 U.S. President Joe Biden is seen wearing two masks as he arrives in Fort Lauderdale, Fla. campaign stop in October. (Jim Watson/AFP viaGetty Images)(AFP via Getty Images) Wearing a mask is crucial in slowing the spread of COVID-19, and now some infectious disease experts say it's a good idea to wear two.