The desire for a booster shot is highest among vaccinated adults who are worried about the Delta variant. Seven in 10 vaccinated adults who are worried about the variant (70%) say they would take a booster shot if it was available. Just two in five vaccinated adults who are not very worried or not worried at all about the COVID-19 strain (42%) would accept a booster shot.

Three-quarters of unvaccinated Americans (73%) say the spread of the more contagious Delta variant makes no difference in their desire to not get vaccinated. Most unvaccinated Americans (55%) also say that even if COVID cases (55%), hospitalizations (57%), or deaths (57%) started to rise among unvaccinated people in their area, that would make no difference in their willingness to get the shot.

One-quarter of unvaccinated (27%) adults say that if the FDA gave full approval for the vaccines (rather than the current emergency approval), they would be more likely to get vaccinated. Most (55%), however, say that this would still not impact their view of vaccination.