CDC: New Omicron strain accounts for about 20% of new cases in U.S.

A new Omicron subvariant is spreading across the U.S., the Centers for Disease Control and Prevention data said Tuesday.Driving the news: The subvariant, BA.2.12.1, accounts for about 20% of new cases across the U.S. and is an offshoot of the BA.2 version of …
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