Covid-19 numbers may be on the decline in the United States after a year of collective grief. But with tens of thousands of deaths expected over the next few months, experts are warning Americans not to drop their guard just yet.
원문출처 : https://www.cnn.com/2021/03/12/health/us-coronavirus-friday/index.html
원문출처 : https://www.cnn.com/2021/03/12/health/us-coronavirus-friday/index.html