Empty vials that contained the COVID-19 vaccines available in Hungary, with left to right, AstraZeneca, Moderna, A and B of Sputnik V, Sinopharm, BioNTech, are seen on a table in a general practitioner's office in Nyiregyhaza, Hungary, Thursday, April 1, 2021. The national vaccination campaign against the coronavirus continues in Hungary. (Attila Balazs/MTI via AP)