The culprit is air pollution — a problem around the globe, from homes where people cook using coal and wood to the smoky streets of San Francisco when wildfires were raging.
A general increase in mask-wearing has been encouraging, U.S. public health experts say. But too few young people, especially, are social distancing and taking other steps to slow coronavirus' spread.
Coronavirus vaccines in development have strict storage requirements, including being kept at very cold temperatures. NPR eyes how the vaccines might be distributed and allocated when they are ready.
Women are leaving the workforce at four times the rate of men. The shift is especially pronounced among Latina women, and that could have lasting effects for the broader economy.
The suspension followed an executive order from the Trump administration that called such workplace programs "divisive," "anti-American," racist against white people and sexist against men.
The country has blown past records set in July and entered uncharted territory. Experts can't predict how high the new peak will go. Here's what's driving the surge.
Though the Trump administration is trying to dismantle the Affordable Care Act in court, it's vowed that people with health problems will still be able to get insured. Here's why that could be tricky.