Add Yahoo as a preferred source to see more of our stories on Google. The Omicron booster will protect against BA.5 and BA.4 as well as the original coronavirus strain. (Getty Images) (Getty Images) ...

Moderna’s Omicron-adapted COVID-19 vaccines appear to reduce the risk of hospitalization and death in adults who are not ...

As health officials scramble to minimize spread of the highly contagious Omicron variant, many experts have recommended that people switch from cloth or surgical masks to more-protective N95 and KN95 ...

As the United States braces for another wave of COVID-19, a surge in new Omicron subvariants has raised concern among scientists. The U.S. Centers for Disease Control and Prevention released data last ...

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 ...

XBB.1.5 made up 27.6% of sequenced Covid cases nationally for the week ending Jan. 7 compared to 18.3% for the week end Dec. 31. The World Health Organization has described XBB.1.5 as the most ...

Earlier this month, the Centers for Disease Control and Prevention (CDC) endorsed the use of a COVID booster vaccine that specifically targets Omicron’s BA.4 and BA.5 variants. The goal of the Omicron ...

The relatively new COVID-19 omicron subvariant XBB.1.5 "is the most easily transmissible subvariant so far," Dr. Marc Siegel, a Fox News medical contributor, told Fox News Digital this week. That is ...

The new omicron boosters are very effective at preventing seniors from being hospitalized with Covid, according to a new CDC study. U.S. health officials have focused in particular on making sure more ...

The Omicron variant spreads easier than other variants of coronavirus, and people can get it twice. Reinfection is possible even if a person has already had this virus or is fully vaccinated. Several ...