The Centers for Disease Control and Prevention (CDC) has changed its guidelines about masks and respirators a number of times over the past two years and gave its most recent update on January 14, ...

SAN FRANCISCO (KGO) -- The omicron surge has caused the CDC to finally update its mask guidance late last week, indicating a clear preference for the level of protection offered by N95 and KN95 masks.

Please provide your email address to receive an email when new articles are posted on . In a real-world study of face masks conducted before the omicron surge, people who reported wearing N95 or KN95 ...

Please provide your email address to receive an email when new articles are posted on . Nearly 100% of N95 masks pass fit tests after 3 years, suggesting annual tests are not necessary. Moving to ...

The Centers for Disease Control and Prevention (CDC), whose previous advice about face coverings as a safeguard against COVID-19 paid little attention to large differences in the effectiveness of ...

(CNN) -- The US Centers for Disease Control and Prevention updated its mask information for the American public on Friday, including clarifying that certain types of masks and respirators offer more ...

NORFOLK, Va. (WAVY) — Many businesses and schools are sticking with CDC guidance which says you should test for COVID if you have symptoms, stay home for a week if you test positive and then wear a ...

A federal judge in Florida struck down the U.S. Centers for Disease Control and Prevention (CDC)’s public transportation mask mandate on April 18, meaning that people no longer have to wear a mask on ...