The Centers for Disease Control and Prevention eased mask-wearing guidance for fully vaccinated people on Thursday, allowing them to stop wearing masks outdoors in crowds and most indoor settings. The advice still calls for wearing masks in crowded indoor settings like buses, planes, hospitals, prisons, and homeless shelters. Still, it will help clear the way for reopening workplaces, schools, and other venues, even removing the need for social distancing for those who are fully vaccinated.