More from Covid-19 vaccines: News and updates


The mutations in omicron hint at what’s to come in the Covid-19 pandemic.


Rapid tests are sold out everywhere, and help might not come until next year.


The worst-case scenario with the new variant could be 20 percent more US Covid-19 deaths than last winter.


Omicron may be less risky for each of us — but more risky for all of us.


Vaccinated and confused about whether to get tested? We asked four experts for help.


Politics — or the lack thereof — was a key factor.


Half the world has gotten a Covid-19 shot. Yet the vaccination rate in some countries is less than 10 percent.


5- to 11-year-olds are now eligible for the Pfizer/BioNTech vaccine. That could be a game changer for families and schools.

As Covid-19 continues to wreak havoc, humans still aren’t doing enough to prevent the next pandemic.


The Pfizer/BioNTech shot got the green light from regulators — which could encourage some holdouts to get vaccinated.

Covid-19 vaccines still are effective in preventing hospitalization. But vaccinated people are more likely to get sick than before.

Age, race, income, and, of course, politics.


Keep an eye on breakthrough Covid-19 cases, but remember that they’re expected.

The delta variant has made Covid-19 more dangerous than ever for unvaccinated people.


The biotech firm said its Covid-19 vaccine showed 90 percent efficacy in clinical trials. Thank moths.


Why the CDC is so confident some people can go maskless.

To defeat the next pandemic, the world needs year-round facilities pumping out vaccines for threats old and new.


Covax wanted to send 2 billion doses worldwide this year. It’s 3.4 percent of the way there.


How coronavirus variants are affecting vaccines, treatments, and our attempts to return to normal.


This fact is crucial to getting the US’s vaccination campaign back on track.


Countries can’t go it alone in tackling Covid-19.


The CDC says we can now drop our masks outdoors in some cases. Experts explain where we still need to keep them on.


The CDC and FDA on Friday accepted recommendations that Johnson & Johnson Covid-19 vaccinations should resume, but with a warning.


America’s Covid-19 vaccine rollout is going so well it could fulfill demand by midsummer without Johnson & Johnson’s shot.


We’re only talking about Covid-19 vaccine breakthrough infections because the pandemic is still raging.