CDC: Wearing a mask could keep you from catching virus

U.S. health officials are taking a new tack to encourage Americans to wear masks: They're emphasizing recent research that a mask protects the person who wears it.Previously, the Centers for Disease Control and Prevention advised people to wear masks because of evidence that it stops people who are infected with coronavirus — whether they know it or not — from spreading it to others.It continues to advise Americans to wear masks to stop the virus from spreading.