Redwood City – San Mateo County Health’s community COVID-19 vaccine clinics are temporarily closed and are expected to reopen after September 12 when they will offer the new booster shot. With the recent Food and Drug Administration (FDA) and Centers for Disease Control and Prevention (CDC) authorization of the new bivalent Omicron booster, the current monovalent COVID-19 vaccines are no longer authorized to be used as boosters.