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Omicron is now the dominant COVID strain in the U.S., making up 73% of new infections
By Jonathan Franklin
Covid news: Israel announces fourth jab; hospital bosses in England brace for ‘dangerous situation’ – as it happened
By Jedidajah Otte, Tom Ambrose & Léonie Chao-Fong
How to stay out of the hospital with Omicron here
By Meredith Li-Vollmer
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First U.S. omicron death may be an unvaccinated man in Texas with health issues
By Lateshia Beachum & Annabelle Timsit
Can you get sick faster from the omicron coronavirus variant? What early data suggests
By Julia Marnin
The omicron variant is surging. Here's what we've learned so far
By Erin Garcia de Jesús & Erin Garcia
Omicron by the numbers: Where things stand now
By Emory Parker