The United States has fully vaccinated more than 100 million people against Covid-19, according to the US Centers for Disease Control and Prevention -- a milestone that comes with optimism about the future.
원문출처 : https://www.cnn.com/2021/05/01/health/us-coronavirus-saturday/index.html
원문출처 : https://www.cnn.com/2021/05/01/health/us-coronavirus-saturday/index.html