S.F. teachers and grocery store workers, now eligible for vaccine, still may have to wait weeks FacebookTwitterEmail A San Francisco man receives the coronavirus vaccine at the city’s mass vaccination site at City College in January. Even though more people in the city are now eligible for the vaccine, they may wait weeks for a shot as second doses are prioritized.Nick Otto / Special to The Chronicle Even as San Francisco moves to expand vaccine eligibility Wednesday to 168,000 teachers, grocery store employees and emergency responders who live or work in the city, some may find they cannot get their first-dose shots for another two or three weeks.