CDC Museum COVID-19 Timeline, David J. Sencer CDC Museum
California mask mandate for schools to end after March 11 - CalMatters
San Diego County Officials Recommend Masks For All Indoor Public
County indoor mask requirement ends for fully vaccinated
Face masks during the COVID-19 pandemic in the United States
As California Drops More Masking Rules, These Bay Area Counties
Effectiveness of Face Mask or Respirator Use in Indoor Public
County recommends following CDC's updated mask stance
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Parents against mask mandates are running for San Diego school
County health officials recommend indoor mask usage
County indoor mask requirement ends for fully vaccinated
Masks No Longer Required, But Strongly Recommended Indoors