SAN FRANCISCO—San Francisco and six other Bay Area counties announced Monday that they are reinstating a mask mandate for all indoor public settings as COVID-19 infections surge because of the highly contagious Delta variant.
The new mandate applies to everyone, regardless of their vaccination status, and takes effect on Tuesday in San Francisco, Alameda, Contra Costa, Marin, San Mateo, Santa Clara and Sonoma counties, as well as the city of Berkeley.
