Americans entered Memorial Day weekend with the United States at five times the level of Covid-19 infection compared with this time last year. Cases continue to rise in most parts of the country, driven by the very contagious BA.2.12.1 subvariant. At the same time, many more people are returning to pre-pandemic activities.


원문출처 : https://www.cnn.com/travel/article/omicron-vaccine-coronavirus-travel-testing-wellness/index.html