Alameda County, California, issued a new mask mandate in most indoor public settings, effective Friday, as coronavirus cases climb.
The county, home to Oakland, is the San Francisco Bay Area’s second-most populous. Alameda County’s move represents the first time a California county has issued a mask mandate since the winter omicron surge faded.
The order does not apply to K-12 school settings through the end of the school year, nor does it apply to Berkeley, which is in Alameda County but has its own public health department.