Scientists debate its necessity, but some say there isn’t time to wait.
Author: MELINA DELKIC
Studies Find Omicron May Be Less Severe Than Delta
U.K. studies found fewer hospitalizations compared to Delta.
Your Wednesday Briefing: Omicron Restrictions
China aims for zero-Covid, while other nations take softer approaches.
U.K. Weighs New Omicron Rules as Cases Surge
It comes as cases surge from the Omicron variant.
France Limits U.K. Travel as Omicron Spreads
Omicron fuels record cases in Britain.
Your Thursday Briefing: Xi and Putin Show Solidarity
The leaders met amid pressure from the West.
Your Wednesday Briefing: Pfizer’s Covid Pill
The company says it prevents severe illness.
Your Tuesday Briefing: Almost 800,000 U.S. Covid Deaths
People 65 and older are the most vulnerable.
Your Friday Briefing: Boosters and Vaccine Equity
The W.H.O. says the rollout leaves poor nations behind.
Your Thursday Briefing: Pfizer’s Booster and Omicron.
The booster protects, and two shots may not be enough.