Son of polio vaccine creator says he is 'relieved' Trump supports vacc… CNN 0 16 7시간전 https://www.youtube.com/watch?v=eqc5sSlb7hY + 1 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 1 Son of polio vaccine creator says he is 'relieved' Trump supports vaccine