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A man wearing a face mask walks under Christmas and New Year lights during the COVID-19 pandemic in downtown Lisbon, Portugal, on Dec. 17, 2020. (Photo by Pedro Fiuza/Xinhua)
A man wearing a face mask walks under Christmas and New Year lights during the COVID-19 pandemic in downtown Lisbon, Portugal, on Dec. 17, 2020. (Photo by Pedro Fiuza/Xinhua)