Featured in covid variants
The ultimate guide to reusing and buying N95 masks
Everything you need to know—well, at least until the next game-changing variant.
Here’s more evidence that vaccines help against Omicron
What we learned about the new variant over the last few weeks.
Omicron isn’t overtaking Delta as quickly as the CDC thought—and that’s bad news
Omicron is not infecting people at the rate officials thought.
This new COVID vaccine uses plants as factories for viral proteins
Makers of the new vaccine say it's highly effective against the Delta variant.
Researchers are racing to figure out if Omicron can beat our vaccines
Research on the immune system response to Omicron gives us clues about vaccine efficacy. Here's what it can tell us, and what it can't.
Omicron may not be more dangerous than other variants, early hospital report suggests
Although Omicron is highly transmissible, cases so far don't show an increase in severity.
Flight bans won’t stop Omicron
The virus is coming from inside the house.
There’s a new Delta variant. Here’s why you shouldn’t panic.
It’s a little more transmissible, but not a great cause of concern, yet.
Mixing and matching COVID-19 vaccines could provide superior immunity
The approach could prompt a powerful immune response.
Millions of people are vaccinated—less than 8,000 of them have died from the virus
The chances of dying from COVID-19 post-vaccination are extremely slim.