美国11月10日更新，已经把所有WHO批准的疫苗列入了去美国不需要再打了吧。 Symptoms, testing, what to do if sick, daily activities, and more. Full Story: https://www.cdc.gov/coronavirus/2019-ncov/travelers/proof-of-vaccination.html#covid-vaccines -keysi(K.S) 2021-11-12
