With another coronavirus variant racing across the U.S., once again health authorities are urging people to mask up indoors. Yes, you've heard it all before. But given how contagious omicron is, ...

Airplane filters remove 99% of particles, experts say, which can help keep transmission of COVID-19 low on flights. But face masks provide an additional layer of protection -- especially if you're ...

University of Minnesota researchers are dangling the irresistible lure of free string backpacks at the Minnesota State Fair to study how masks fit different faces differently and offer varying ...