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Satellite imagery shared exclusively with NPR suggests that North Korea is moving ahead with plans to expand its capabilities.

Encore Monday, Feb. 28, 2022 at 8 p.m. on KPBS TV + Wednesday, March 2 at 8 p.m. on KPBS 2 / On Demand. Discover an oasis of Roadshow treasures at the Desert Botanical Garden in Phoenix, such as a Cartier jadeite pendant necklace, Kanye West original artwork from around 1995 and a 1906 Louis Akin chromolithograph. Learn which is $50,000-$75,000.

Among the questions this week: Can you get COVID-19 more than once? What's the maximum surface area that can be treated with one disinfecting wipe?

Satellite imagery shared exclusively with NPR suggests that North Korea is moving ahead with plans to expand its capabilities.

This veteran of fighting HIV/AIDS around the world knows a thing or two about stopping epidemics. But are some of her assumptions too rosy?

"Case fatality rates have been very confusing," says Dr. Steven Lawrence, an infectious disease expert. Here's why.

Doctors say the machine that helps some people with sleep apnea keep their airway open at night won't be enough to help an ill COVID-19 patient breathe and could spread the coronavirus to bystanders.

Doctors say the machine that helps some people with sleep apnea keep their airway open at night won't be enough to help an ill COVID-19 patient breathe, and could spread the coronavirus to bystanders.

Under the plan, single people earning incomes below $75,000 will receive as much as $1,200. The White House says it will issue funds in three weeks but experts say it could take months for some.

A treatment strategy that identifies particularly potent immune system proteins, then gins up mass quantities for a single dose might help prevent infections or quell symptoms, scientists say.