Washington (CNN)The US Centers for Disease Control and Prevention on Tuesday changed its masking recommendations as it grows more concerned over the Delta variant of Covid-19, urging vaccinated people in certain areas of the country to resume wearing masks indoors in public areas.
CDC Director Dr. Rochelle Walensky announced that the agency now recommends that people in areas with “high” or “substantial” Covid-19 transmission should resume wearing masks indoors. Nearly two-thirds of US counties have high or substantial transmission of Covid-19, according to CDC data; 46% of counties have high transmission and 17% have substantial transmission.
