Americans who are not vaccinated against COVID-19 are far more likely than vaccinated people to contract the coronavirus and to be hospitalized and die from it, according to the Centers for Disease Control and Prevention. Even so, a recent Pew Research Center survey finds they are less likely to be concerned about the health effects of the virus and to report wearing masks in stores or other businesses all or most of the time in the past month.

Overall, 26% of U.S. adults say they have not been vaccinated against COVID-19. But the percentage of Americans who are unvaccinated is higher among some groups, including younger adults, those with less formal education, those who lack health insurance and those who identify as Republican or lean to the Republican Party.

Only 21% of those who have not received a vaccine say they have a great deal or fair amount of confidence in the vaccine research and development process – compared with 91% of those who are partially or fully vaccinated.