Dr. Leana Wen worries that America is not going to get to herd immunity, and says, 'we need to address concerns of people who change their minds' and show people what a return to normal looks like.


원문출처 : https://www.cnn.com/videos/tv/2021/05/01/how-can-u-s-solve-problem-of-vaccine-hesitancy.cnn