In fact, vaccinated people say the third dose approved by U.S. regulators last week shows that scientists are trying to make the shots more effective while 71% of unvaccinated Americans say it’s proof the vaccines don’t work, according to a survey released today by the Kaiser Family Foundation.

Nearly 80% of vaccinated respondents see booster shots as a good sign…

The split in attitudes toward vaccines more broadly continues to be a largely partisan one, the survey data shows, with 90% of respondents who are Democrats saying they have received at least one vaccine dose compared with 58% of Republicans.

That division by political identity has remained steady at about 30 percentage points since vaccines became widely available in the spring, Hamel said, even as other gaps along lines of race and ethnicity have narrowed.