The US Centers for Disease Control and Prevention on Thursday increased the risk level for cruise ship travel to its highest level and said it should be avoided, regardless of vaccination status.
원문출처 : https://www.cnn.com/travel/article/cdc-cruise-travel-risk-level/index.html
원문출처 : https://www.cnn.com/travel/article/cdc-cruise-travel-risk-level/index.html