The Omicron subvariants BA.4 and BA.5 have together become dominant in the U.S., the C.D.C. estimates.

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By BY ADEEL HASSAN from NYT Health https://ift.tt/q3LHKEP
The Omicron subvariants BA.4 and BA.5 have together become dominant in the U.S., the C.D.C. estimates. The Omicron subvariants BA.4 and BA.5 have together become dominant in the U.S., the C.D.C. estimates. Reviewed by Virual stuff on June 28, 2022 Rating: 5

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