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“Battle Of Omicron” Being Won By New BA.4 And BA.5 Variants As Overlapping Covid Waves Hit U.S.

Estimates released by the Centers for Disease Control and Prevention today indicate that the share of cases tied to Omicron variants BA.4 and BA.5 increased 79% in the past week. That means, even as the more transmissible BA.2.12.1 Omicron subvariant became officially dominant in the U.S. last week, it’s already being pushed out by newcomers BA.4 and BA.5. The […]

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