Amid a shortage of medical-grade masks, federal guidelines now recommend everyone wear face coverings out in public. Here's ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Most face coverings, the CDC says, will slow the coronavirus—whether or not the wearer knows he’s ...

Guess what happened within a few weeks of Kaiser Permanente Santa Rosa Medical Center lifting its face mask requirements. The answer rhymes with headache, as in a Covid-19 outbreak. And now, the ...