"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 ...

Since May, highly contagious "FLiRT" coronavirus variants – a term for new mutations of Omicron – have been driving a rise in infections and emergency room trips. Virus levels at local wastewater ...

Editor's Note: This story was updated on July 11 to include information on why valved masks do not block exhaled droplets. As states reopen from stay-at-home orders, many, including California, are ...