Omicron, Now 2 Years Old, Is Not Done With Us Yet The dominant variant of the coronavirus has proved to be not only staggeringly infectious, but an evolutionary marvel. Covid testing in Washington, D.C. in December 2021 as Omicron surged across the U.S. Kenny Holston for The New York Times
By November 2021, nearly two years after the coronavirus emerged in Wuhan and spread…

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