COVID-19 shots, a new study claims. The Boston University School of Medicine (BUSM) research team focused on Ohio’s "Vax-a-Million" lottery scheme, which was a source of inspiration for other states seeking to address lagging vaccination rates.
The team used data from the Centers for Disease Control and Prevention (CDC) to evaluate trends in vaccination rates among adults 18 and older.
They compared the dates before and after the Ohio lottery to other states that had not yet launched giveaway incentives. The states without such programs or so-called lotteries acted as the control, which allowed the team to account for other factors, such as expanded eligibility to younger teens, according to a news release.