A coronavirus variant first spotted in India is poised to become the dominant one in the United States, where infectious disease modelers say it could cause a "resurgence" of Covid-19 later this year.
원문출처 : https://www.cnn.com/2021/06/22/health/covid-variant-delta-gamma/index.html
원문출처 : https://www.cnn.com/2021/06/22/health/covid-variant-delta-gamma/index.html