A mask mandate was re-implemented in California’s San Mateo County, where nearly 90 percent of residents are fully vaccinated, according to officials this week.
Starting Monday, all residents—including those who are vaccinated—will have to wear face masks in government offices, health clinics, and other public facilities. Masks are not mandated—but recommended—inside other public areas such as restaurants, gyms, theaters, and grocery stores, according to a press release from the county.