Guidance on whether to wear a face mask varies locally. But the Centers for Disease Control and Prevention has recommended that all Americans, healthy and sick, wear basic cloth masks in public — a ...

Up to this point in the coronavirus pandemic, public health officials in the United States have advised healthy civilians against wearing face masks, despite a growing grassroots masks-for-all ...

The Washington Post is providing this news free to all readers as a public service. Follow this story and more by signing up for health, science, and environment email alerts. On Friday, President ...