NEW YORK (AP) — The omicron variant of COVID-19 has been discovered in at least five states, showing yet again how mutations of the virus can circumnavigate the globe with speed and ease. Just a day ...

The US Centers for Disease Control and Prevention strengthened recommendations for booster doses of coronavirus vaccine Monday, saying all adults should get boosted six months after the second dose of ...

Countries around the world are canceling or restricting indoor events and activities as cases of Covid-19, fueled by both the Delta and Omicron variant, spike. Follow here for the latest news updates.

Pfizer said Wednesday that a booster of its COVID-19 vaccine may offer important protection against the new omicron variant even though the initial two doses appear significantly less effective.

HOUSTON, Texas (KTRK) -- As the omicron variant makes its way through southeast Texas, we're learning more about how it's impacting people, including how quickly booster effectiveness is fading. Dr.

Scientists are watching a new coronavirus variant - a mixture of the omicron and delta strains. Some call it deltacron. This new variant is very rare, we're told, and in its current state, it seems ...

Propelled in part by the wildly contagious omicron variant, the U.S. death toll from COVID-19 hit 900,000 on Friday, less than two months after eclipsing 800,000. The two-year total, as compiled by ...

The omicron variant of COVID-19, which had been undetected in the U.S. before the middle of this week, had been discovered in at least five states by the end of Thursday, showing yet again how ...