• Surge of unvaccinated Covid-19 patients is straining US hospitals
• France and Spain ban unvaccinated American travelers
원문출처 : https://www.cnn.com/travel/article/what-americans-need-to-know-about-eu-restrictions/index.html
원문출처 : https://www.cnn.com/travel/article/what-americans-need-to-know-about-eu-restrictions/index.html