Centers for Disease Control says many Americans can now go outside without a mask The new guidance represents another carefully calibrated step on the road back to normal from the coronavirus outbreak that has killed over 570,000 people in U.S. Share Via Email | A+A A- By Associated Press NEW YORK: The Centers for Disease Control and Prevention eased its guidelines Tuesday on the wearing of masks outdoors, saying fully vaccinated Americans don't need to cover their faces anymore unless they are in a big crowd of strangers. And those who are unvaccinated can go outside without masks in some situations, too.