A total of 7% said they experienced a major side effect, which would amount to 12 million adults.
The survey of 1,000 U.S. adults – conducted Nov. 30-Dec. 1. – also found that 57% of U.S. adults were at least somewhat concerned that the vaccines many have major side effects, including 31% who were very concerned.
Rasmussen head pollster Mark Mitchell said in a video presentation on the survey that "the COVID pandemic was so politicized that, literally, the tribal party group that you belong to is essentially what dictates your views on the effectiveness of a vaccine." Continued at link.