With uneven vaccination rates across the US and a dangerous variant now spotted in all 50 states, a health expert is warning the federal government's mask guidance should be more focused, instead of a "one-size-fits-all" approach.
원문출처 : https://www.cnn.com/2021/07/01/health/us-coronavirus-thursday/index.html
원문출처 : https://www.cnn.com/2021/07/01/health/us-coronavirus-thursday/index.html