FILE PHOTO: KN95 masks are shown for sale in a vending machine at the airport during the outbreak of the coronavirus disease (COVID-19) in San Diego, California, U.S., February 4, 2021. REUTERS/Mike Blake/File Photo
NEW YORK (Reuters) - When it comes to protecting yourself against new coronavirus variants, two masks may be better than one.
A number of politicians, including Vice President Kamala Harris and Senator Mitt Romney, have been spotted doubling up on face masks, and top infectious disease expert Anthony Fauci has recommended that everyday Americans do the same.
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