Covering your face is like casting a vote for the pandemic to end. Covering your mouth and nose is one way that can protect you in so may ways. How far an infectious droplet can travel have not been entirely resolved. there are some indications that it can reach farther than the often-mentioned six feet if, for example, propelled by a vigorous sneeze.) Wearing masks before going into a grocery store is a sensible measure, particularly considering the risks that clerks are bearing to keep everyone else supplied. It is to protect you and other people.
