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Biden pledges to fight new variant ‘with science and speed,’ as omicron cases multiply and winter outlook worsens

What is the omicron variant of COVID-19? What do we know about it?

Daniel Freund1
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Alberto Vera
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Pa. prepares for omicron COVID variant: What we know and don't know

Mark Gluzman
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Americans are already weary of COVID constraints. Will omicron response help or hurt Biden?

Clues to Omicron Variant’s U.S. Spread Include Test Samples, Sewage

Yunbei Xu
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Experts see supply chain disruptions extending into 2022 and beyond