Masks. Do Face Masks Work? Five years after Donald Trump declared a national COVID emergency, here's what the research says. Ronald Bailey | 3.10.2025 2:15 PM ...

Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and ...

ABOARD ONE OF THE LAST MASKED FLIGHTS: Here's how crew, passengers found out masks weren't required Do you have to wear masks on airplanes? An airline-by-airline look at face mask policies as of ...