The dataset provides number of county residents who are Booster vaccinated by Race/Ethnicity. Number of people who completed 1st Booster Vaccinations. Source: California Immunization Registry. This table is updated Monday-Friday and will not be updated on holidays.

Counties are experiencing temporary fluctuations in vaccination data received from the State of California due to a data reconciliation process involving integration of vaccination data systems by the State. The data reconciliation process and associated fluctuations in county vaccination are expected to be resolved by May 2022