Out of the Covid-19 pandemic, two Americans are emerging: One protected by vaccines and the other still vulnerable to infection -- and experts say progress made across the entire US is being threatened by low-vaccinated regions.
원문출처 : https://www.cnn.com/2021/07/06/health/us-coronavirus-tuesday/index.html
원문출처 : https://www.cnn.com/2021/07/06/health/us-coronavirus-tuesday/index.html