face masks changed again this week when the U.S.-based Centers for Disease Control and Prevention (CDC) updated its guidance to say face coverings can help protect the wearer as well as those around them.The new guidance, which landed on the CDC website on Tuesday, cited recent studies suggesting multi-layer cloth masks can “reduce inhalation of … droplets by the wearer.” Previous guidance said masks were useful primarily in blocking the wearer’s droplets from reaching others.
Coronavirus face coverings under the nose equivalent to ‘not wearing a mask’: experts The CDC’s update now matches recommendations from both Health Canada and the World Health Organization (WHO).