Health officials in a Colorado county believe they've found a second local case of a coronavirus variant from the United Kingdom -- one that experts have said may be especially contagious -- a county public health director said Wednesday.
원문출처 : https://www.cnn.com/2020/12/30/health/colorado-uk-coronavirus-variant/index.html
원문출처 : https://www.cnn.com/2020/12/30/health/colorado-uk-coronavirus-variant/index.html