PHILADELPHIA — In the City of Brotherly Love this week, residents are experiencing a blast from the recent past: masks are back in Philadelphia’s indoor spaces. Cases there jumped by 50%, prompting ...

A large, randomized study from Stanford (Calif.) Medicine and New Haven, Conn.-based Yale offers the strongest evidence yet that wearing surgical masks can reduce community spread of COVID-19. The ...

Most states are adjusting mask mandates and policies after the CDC updated its guidelines May 13. Americans who are fully vaccinated against COVID-19 no longer need to wear masks or follow social ...

PHILADELPHIA (WPVI) -- Masks will once again be required in all Philadelphia public schools beginning Monday, district officials announced. "To help protect everyone's health and well-being as ...

Researchers at The University of Osaka have found that individuals in Japan who have been infected with COVID-19 are more ...

LOS ANGELES (CNS) -- Los Angeles County is continuing to experience increases in COVID-19 infection and hospitalization rates, the public health director said Friday, warning that two newly emerging ...