After more than six months in the US Centers for Disease Control and Prevention's lower-risk Level 3 travel category, Mexico moved into "very high" risk Level 4 on Monday along with 11 other destinations.
원문출처 : https://www.cnn.com/travel/article/cdc-very-high-risk-travel-destinations-january-31/index.html
원문출처 : https://www.cnn.com/travel/article/cdc-very-high-risk-travel-destinations-january-31/index.html