Experts say Covid-19 vaccinations in the US are going extremely well -- but not enough people are yet protected and the country may be at the start of another surge.
원문출처 : https://www.cnn.com/2021/04/05/health/us-coronavirus-monday/index.html
원문출처 : https://www.cnn.com/2021/04/05/health/us-coronavirus-monday/index.html