Russian President Vladimir Putin announced the approval of a coronavirus vaccine for use on Tuesday, claiming it as a "world first," amid continued concern and unanswered questions over its safety and effectiveness.
원문출처 : https://www.cnn.com/2020/08/11/europe/russia-coronavirus-vaccine-putin-intl/index.html
원문출처 : https://www.cnn.com/2020/08/11/europe/russia-coronavirus-vaccine-putin-intl/index.html