The highly contagious Covid-19 variant first identified in the UK has now been reported in every state in the US, and experts are concerned spreading variants could send cases surging.
원문출처 : https://www.cnn.com/2021/04/06/health/us-coronavirus-tuesday/index.html
원문출처 : https://www.cnn.com/2021/04/06/health/us-coronavirus-tuesday/index.html