A shopper wearing a face mask pushes an empty cart past inflatable Santa Clauses as she leaves a discount store in Inglewood, Calif., Monday, December 20, 2021. Omicron has raced ahead of other variants and is now the dominant version of the coronavirus in the U.S., accounting for 73% of new infections last week, federal health officials said Monday. (Photo by Jae C. Hong/AP Photo)
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