https://www.siliconvalley.com/2020/12/11/fda-authorizes-pfizer-vaccine-to-prevent-covid-19/

As COVID-19 cases surge and hospital capacity shrinks, the U.S. Food and Drug Administration on Friday approved the first vaccine against the deadly virus, launching the nation’s historic mass vaccination campaign.

California is poised to start immunizations next week of the first two groups of eligible vaccine recipients: high-risk health care providers and residents of long-term care facilities.