The omicron sublineages named BQ.1 and BQ.1.1 continued to spread in the U.S. in the week through Oct. 29, accounting for 27.1% of new cases nationwide, according to Centers for Disease Control and Prevention data.The two accounted for 42.5% of all cases in the New York region, which includes New Jersey, Puerto Rico and the Virgin Islands, up from 37% the previous week.
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