Even as the omicron COVID-19 variant continues to sweep the globe, scientists are now monitoring a new mutation of omicron, dubbed BA.2. The World Health Organization maintains that BA.2 is not a ...

But Dr. Rochelle Walensky said the delta variant remains the chief concern. With the omicron variant now detected in at least 16 states in the U.S., Centers for Disease Control Director Dr. Rochelle ...

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 ...

For nearly two years, day after day, under exhausting and often dangerous conditions, health care workers across the country have continued to care for the nation's sickest Americans who have fallen ...

The Omicron variant has now been detected in at least five states, after multiple states announced their first cases of the strain on Thursday night. At least 10 total cases have now been reported in ...

While at least 12 states have identified cases of the Omicron coronavairus variant, US health officials remain concerned about the Delta version that accounts for practically all new infections. "We ...

The NB.1.8.1 subvariant of COVID-19, a new strain of the Omicron variant, has been identified in the United States, primarily among international travellers. This subvariant is noted for its higher ...

There’s still time to “enhance our preparedness” with vaccinations, he said. While the new omicron variant of the COVID-19 virus has not yet been detected in the United States, it will "inevitably" ...

Airlines have canceled thousands of flights on Christmas Eve as staff and crew call out sick during the omicron surge. NEW YORK -- Airlines have canceled thousands of flights on Christmas Eve, ...

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 ...