Switzerland and Puerto Rico are now among the highest-risk destinations for travelers, according to the US Centers for Disease Control and Prevention's regularly updated travel advisories list.
원문출처 : https://www.cnn.com/travel/article/cdc-very-high-risk-travel-destinations-august-30/index.html
원문출처 : https://www.cnn.com/travel/article/cdc-very-high-risk-travel-destinations-august-30/index.html