Hong Kong authorities announced a two-week ban on flights from eight countries and held 2,500 passengers on a cruise ship for coronavirus testing as the city attempted to stem an omicron outbreak.
Lockdowns are so strict and so prolonged in the Chinese city that residents have taken to social media to complain and joke about a lack of basic supplies.
The question of what fully vaccinated means might be changing as booster shots are becoming more important. More data, and new policies, are emerging in the U.S. and around the world.
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Most people know the telltale signs of COVID-19. But given omicron's many mutations, are the common symptoms still the same? Doctors are noticing at least some differences with the new variant.
In the face of rising COVID-19 cases, Dr. Bob Wachter of the University of California, San Francisco, offers reasons to be hopeful about the pandemic's outlook in the months ahead.
NPR's Rachel Martin talks to Karen Harned of the National Federation of Independent Business, about its opposition to OSHA's vaccine and testing requirements for private employers.
Those who contracted COVID-19 can end their isolation after five days while continuing to wear a well-fitting mask for an additional five days, according to the agency.