Earlier this week, the US Centers for Disease Control and Prevention announced that, as of Tuesday, January 26, all air passengers ages two and older must show proof of a negative Covid-19 test to enter the United States.
원문출처 : https://www.cnn.com/travel/article/united-states-travel-new-covid-test-requirement/index.html
원문출처 : https://www.cnn.com/travel/article/united-states-travel-new-covid-test-requirement/index.html