Stock markets around the world tumbled on concerns about the new variant. While it's too soon to tell exactly how the variant functions, virologists are rushing to learn more.

COVID-19 hospitalizations continue to strain U.S. hospitals. NPR built a tool to explore trends around the country. Look up your local hospital to see how it's faring.

Early in the pandemic, people were advised to disinfect everything they touched. But now that scientists understand more about how COVID-19 spreads, all that scrubbing down may have been overkill.

Many favorite holiday traditions could be treacherous this year because of the coronavirus. Here's how experts view the risks — and some creative, safer alternatives to keep up a festive mood.

Fingertip devices that measure oxygen in the blood can sometimes give erroneous readings in people with dark skin, doctors report. The devices can say oxygen levels are normal when they're not.

Say yes to that second s'more and dressing like an onion. Cold weather enthusiasts — and one hater — offer their advice on how to survive and perhaps even thrive during pandemic outdoor gatherings.