Europe is welcoming vaccinated tourists this summer: Here’s what you need to know
Europe is welcoming COVID-19 vaccinated tourists this summer: Pfizer and BioNTech, Moderna, AstraZeneca and Johnson & Johnson.
美國授權和推薦的COVID-19疫苗
Authorized and Recommended VaccinesA COVID‑19 vaccine is a vaccine intended to provide acquired immunity against severe acute respiratory sy...
