The omicron variant of SARS-CoV-2 is spreading at an alarming rate. It could soon replace the delta variant, which at present dominates globally. However, little is known about whether currently ...

Exactly how the new variant of COVID-19 fares against vaccinated people continues to be studied. The COVID-19 variant Omicron is 3 times more likely to reinfect individuals than the Delta variant, ...

In COVID terms, the middle of last autumn looked a lot like this one. After a rough summer, SARS-CoV-2 infections were down; hospitalizations and deaths were in a relative trough. Kids and workers ...

Researchers say they've uncovered a clue to why the Omicron variant spreads COVID-19 so much more rapidly than its predecessors. People who are infected but have no symptoms are still far more likely ...

The U.K. Health Security Agency found the risk of hospitalization for people infected with omicron is about a third of that posed by the delta variant. The study analyzed more than 528,000 omicron ...

The world’s most widely used COVID-19 vaccines provide little to no protection against infection with the rapidly spreading Omicron variant, laboratory evidence suggests. Inactivated-virus vaccines ...

A new study reveals that there were fewer cases of multi-system inflammatory syndrome in children (MIS-C) during the omicron wave of the pandemic than the delta wave. A new University at Buffalo study ...

Airlines have canceled more than 10,000 flights over the year-end holidays as the omicron variant of the coronavirus spread among crews. Carriers must refund travelers' money if they cancel a flight ...

This live coverage has ended. For the latest coronavirus news, click here. The number of New Yorkers hospitalized with coronavirus infections topped 9,500 on Monday, surpassing the peak reached during ...

The Omicron variant put America’s recovery through the ringer. But the post-Thanksgiving timing may mean the economic scorecard for the final quarter of 2021 could still look decent. At least that’s ...