The Centers for Disease Control and Prevention updated its guidelines Tuesday, recommending that even those who have been vaccinated should resume wearing face masks in public spaces and indoors in areas of the country where COVID-19, and the even more contagious Delta variant, are spreading rapidly. “Communities with low rates of vaccination are seeing major surges in cases and, in these places, wearing masks in indoor public spaces can help to prevent the spread of the virus.” Yamey thinks North Carolina ought to take a note from communities like Los Angeles, which reinstated its indoor mask mandate to stop a surge in cases.