Health passes spread around the world
Passes and vaccine passports are increasingly being used across the world to limit entry to public places to those who have been vaccinated, recovered from Covid-19 or tested negative
A peek behind the IT curtain of EU’s ‘vaccine passport’
From video calls involving 130 people to no-shows at the rehearsal, Josef Lieven and his software engineers faced their share of challenges on the road to Europe's digital Covid certificate