Number of COVID-19 vaccine developments in the U.S. 2021, by state
As of year-end 2021, California was the leading state by number of COVID-19 vaccine developments in the U.S., accounting for 22 vaccine developments, while Alabama was the second leading state with 15 vaccine developments. This statistic illustrates the number of COVID-19 vaccine developments in the United States as of year-end 2021, by state.