First mass vaccination site staffed by active duty service members opens at Cal State LA A new mass COVID-19 vaccination site opened at Cal State LA on Feb. 16. LOS ANGELES - A new COVID-19 vaccine site, part of a joint effort between the Federal Emergency Management Agency and the governor's Office of Emergency Services, opened Tuesday at Cal State Los Angeles. It is the first vaccination super site staffed by active duty service men and women. The community-focused site is able to vaccinate up to 6,000 people per day for both drive-thru and walk-up appointments and will also deploy a mobile clinic that will visit local community centers and schools.