94% 的美国人得过至少一次新冠感染。打过疫苗后反复得感染的人占55.7%

The team estimated that 29.1% of Americans have been vaccinated and infected, 55.7% are vaccinated and re-infected, 2.4% are unvaccinated and infected, 7% are unvaccinated and re-infected. Of those who have never been infected, about 63% are vaccinated: 3.5% of Americans, as opposed to 2.1% who are unvaccinated and never infected.