The US kicked off 2022 amid a massive Covid-19 case spike -- driven by the highly contagious Omicron variant -- that some experts warn will be different than any other time in the pandemic.
원문출처 : https://www.cnn.com/2022/01/02/health/us-coronavirus-sunday/index.html
원문출처 : https://www.cnn.com/2022/01/02/health/us-coronavirus-sunday/index.html