S.F. school district doesn't get needed state codes to prioritize teachers for vaccines FacebookTwitterEmail State officials omitted San Francisco teachers from the first round of vaccine vouchers because the city’s high-volume vaccination site, the Moscone Center, was already fully booked for vaccination appointments.Nick Otto / Special to The Chronicle San Francisco did not receive the expected state codes Tuesday for educators to get priority for vaccines because the city’s city’s high-volume vaccination site was already fully booked, state officials said. Alameda, Contra Costa and San Mateo counties confirmed they received the needed codes, which Gov. Gavin Newsom pledged last week counties would get as part of a new plan to set aside shots for teachers.