The CDC says high-filtration masks like N95s provide the best protection. Here's how to find a good one — and avoid the fakes. Plus tips on how to fit them and how long to wear them.

There's a lot we don't know about the new COVID variant. Many people are wondering if they can fly and go to holiday parties and restaurants — or should just hide out. We asked doctors for answers.

Early in the pandemic, shortages of N95 respirators and other medical gear prompted panic across the world. A year later, the masks still aren't widely available to U.S. consumers.