When 90-year-old Margaret Keenan received the world's first clinically authorized and tested Covid-19 vaccine earlier this week, the end of the Covid-19 pandemic seemed finally in reach.
원문출처 : https://www.cnn.com/2020/12/13/world/coronavirus-vaccine-developing-world-intl/index.html
원문출처 : https://www.cnn.com/2020/12/13/world/coronavirus-vaccine-developing-world-intl/index.html