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Omicron already replacing delta as most dominate US variant
Omicron 'very likely' to replace delta as dominant variant in PH: WHO | ANC
WHO: IHU not seen to replace Delta, Omicron as dominant variant
Highly mutated omicron variant likely already spreading in US
New COVID-19 variant omicron will soon replace delta
Omicron variant: Your questions answered
Watch again: Fauci discusses Omicron Covid-19 variant
Omicron now dominant variant of COVID in the United States
Delta, Omicron pose risk of simultaneous infections
WHO Says Measures Used Against Delta Should Work For Omicron
Could omicron lead to more breakthrough COVID cases? Here's what we know
Is new omicron more severe?
