European vaccination passport: a QR code to certify vaccinations, tests or whether you have had covid International | 17/03/2021
![The lonely appearance of the Prado airport at Christmas holidays could change a little this summer.](data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 9"%3E%3C/svg%3E)