Scientists in London are working to develop a radical new type of vaccine in the effort to combat Covid-19. CNN's Nick Paton Walsh reports.
원문출처 : https://www.cnn.com/videos/world/2020/05/15/vaccine-coronavirus-nick-paton-walsh-pkg-intl-ldn-vpx.cnn
원문출처 : https://www.cnn.com/videos/world/2020/05/15/vaccine-coronavirus-nick-paton-walsh-pkg-intl-ldn-vpx.cnn