"Maybe the cough is the new smoking-in-public. If you're doing it without a face mask, you'll be looked at awkwardly," said Dr. Panagis Galiatsatos, an assistant professor at Johns Hopkins School of Medicine. FILE - In this Tuesday, Dec. 29, 2020, file photo, shoppers wear face masks while in search of after-Christmas bargains in shops in the Denver Pavilions in downtown Denver. U.S. health officials say the lack of reported travel history for a Colorado National Guardsman with a new variant of the coronavirus suggests it is already spreading in the U.S. Dr. Greg Armstrong of the CDC says the agency is working with a national lab to broaden the search for the variant. (AP Photo/David Zalubowski, File) (Associated Press)
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