This article was updated to include information about President Joe Biden's Covid-19 response plan. An unpredictable vaccine supply and lack of statewide coordination has school districts across California struggling to figure out how to vaccinate their teachers and other school staff — and equally importantly, when. After health care workers and staff at long-term care facilities, teachers and other school employees are included in the next phase (Phase 1B) of the state’s vaccine rollout. But when they actually get vaccinated will depend on how many doses come into the state and are made available in each county, if there are sites to distribute vaccines and whether their counties have finished vaccinating health care workers and nursing home residents in Phase 1A of California’s roll out plan.