Thursday saw a major milestone in the authorization process for a Covid-19 vaccine in the US -- a milestone that comes as the country is deep into a health crisis that is only worsening.
원문출처 : https://www.cnn.com/2020/12/11/health/us-coronavirus-friday/index.html
원문출처 : https://www.cnn.com/2020/12/11/health/us-coronavirus-friday/index.html