Bill Gates, philanthropist and founder of Microsoft, discusses the timeline for a potential vaccine for Covid-19.
원문출처 : https://www.cnn.com/videos/health/2020/04/27/bill-gates-coronavirus-vaccine-gps-vpx.cnn
원문출처 : https://www.cnn.com/videos/health/2020/04/27/bill-gates-coronavirus-vaccine-gps-vpx.cnn