Is It Safe to Travel? Can I Still See My Family on Christmas?
Is Omicron really going to ruin Christmas?Ever since Covid-19 cases began rising…
Moderna Says Its Booster Significantly Raises Antibodies Against Omicron
A booster shot of the Moderna coronavirus vaccine significantly raises the level…
Most of the World’s Vaccines Likely Won’t Prevent Infection From Omicron
A growing body of preliminary research suggests the Covid vaccines used in…
Most Covid Infections May Soon Be Breakthroughs. Here’s What That Means.
Hospitals are already overburdened by Delta patients, and the consequences of many…
U.K. Weighing Lockdown Amid an Omicron Wave and Political Turmoil
LONDON — With coronavirus cases in Britain exploding, driven by the highly…
What to Do If You Test Positive for Covid-19
Should I take a second test to confirm the result?If you tested…
London Faces a Dimming Holiday Travel Season
“I’m seriously thinking about whether there is a future I can really…
Biden’s Covid Vaccine Mandate Reinstated for Large Businesses
But Judge Joan L. Larsen, a Trump appointee, dissented, arguing — as…
Offices Close and Holiday Parties Fade as Omicron Brings New Concerns
As employers weigh vaccine guidelines and adjust their office returns, they also…
