Add Yahoo as a preferred source to see more of our stories on Google. Getty Images An alleged warning has spread online for years about a supposed "new COVID-Omicron XBB variant" — a new strain of the ...

An omicron subvariant is once again demonstrating immune-dodging abilities, posing a threat to both vaccinated and previously infected individuals. A report published Wednesday in the New England ...

When the coronavirus receded across much of the globe last month and the omicron surge declined, many Americans were hopeful that was perhaps the signal that the United States was entering a new phase ...

SAN FRANCISCO -- Preliminary data out of South Africa is giving the world insight into how strong omicron really is. The South African Medical Research Council just reported this variant may cause ...

Labs at Seattle-based University of Washington Medicine are gearing up to test the COVID-19 omicron variant against current vaccines and natural immunity to other strains, according to a Nov. 29 ...

An alleged warning has spread online for years about a supposed "new COVID-Omicron XBB variant" — a new strain of the coronavirus that has spread globally since early 2020. Framed as official guidance ...