With Covid-19 cases rising and vaccination rates on the decline, health experts say they are concerned about the next chapter in the pandemic -- especially for younger Americans, who they say are feeling the impacts.
원문출처 : https://www.cnn.com/2021/07/22/health/us-coronavirus-thursday/index.html
원문출처 : https://www.cnn.com/2021/07/22/health/us-coronavirus-thursday/index.html