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Researchers race to assess the new Omicron variant

Researchers race to assess the new Omicron variant

CDC: Omicron now dominant variant in U.S.

CDC: Omicron now dominant variant in U.S.

Omicron subvariant BA.5 driving U.S. COVID cases

Omicron subvariant BA.5 driving U.S. COVID cases

Pfizer and Moderna update latest COVID vaccines to target the Omicron variant

Pfizer and Moderna update latest COVID vaccines to target the Omicron variant

New Omicron subvariant raises concerns

New Omicron subvariant raises concerns

Experts warn omicron variants can spread more easily outdoors; prior infections provide less immunit

Experts warn omicron variants can spread more easily outdoors; prior infections provide less immunit

CBS NewsMallika Marshall,MD

Pfizer says COVID booster protects against Omicron

Pfizer says COVID booster protects against Omicron

As highly transmissible Omicron subvariant spreads, what do Americans need to know?

Omicron coronavirus variant is not mild for U.S. hospital systems

Connecticut governor "concerned" about potential for Omicron spread up East Coast

World rings in the new year as Omicron cases surge

COVID-19 infections rise amid Omicron fears

Omicron BA.2 sub-variant nearly a quarter of new COVID cases in U.S.

FDA approves COVID antiviral pill as scientists learn more about risk from Omicron

COVID-19 Omicron subvariant rapidly spreads across the U.S.

Omicron subvariants fuel a new wave of COVID-19 infections across the U.S.

Omicron fuels surge in COVID-19 hospitalizations and deaths

Fueled by Delta and Omicron variants, COVID-19 cases spike nationwide

Omicron's quick spread raises concerns

South African research finds Omicron variant more contagious but less likely to cause serious illness

Omicron variant spreads as vaccination rate hovers near 60%

Children's COVID hospitalizations rising

White House official on COVID concerns

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