U.S. officials say most Americans live in places where healthy people can safely take a break from wearing masks.

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The Centers for Disease Control and Prevention on Friday outlined a new set of measures for communities where COVID-19 is easing its grip.

They focus less on positive test results and more on what’s happening at hospitals.

More than 70% of the U.S. population lives in counties where the coronavirus is posing a low or medium threat to hospitals.

Those are the people who can stop wearing masks for now. The agency is still advising that people, including schoolchildren, wear masks where the risk of COVID-19 is high. The new recommendations don’t change the requirement to wear masks on public transportation.

Answers to 25 common COVID-19 vaccine questions

Vaccinations for COVID-19 began being administered in the U.S. on Dec. 14, 2020. The quick rollout came a little more than a year after the virus was first identified in November 2019. The impressive speed with which vaccines were developed has also left a lot of people with a lot of questions. The questions range from the practical—how will I get vaccinated?—to the scientific—how do these vaccines even work?

Keep reading to discover answers to 25 common COVID-19 vaccine questions.