"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." With new variants come symptoms like a sore throat, fever, cough, and fatigue, so it's important to mask ...

Masks work best when everyone in the room has one on, but you’ll still benefit from masking up even when those around you aren’t. Credit...Aileen Son for The New York Times Supported by By Tara Parker ...

A computer model deepens our understanding of airflow while wearing face masks, where particles land in the respiratory tract and the effectiveness of three-layer surgical masks. Even though it has ...