Thursday, March 11, 2021

QR codes, health passports: China's tech arsenal against a pandemic

Daily life in China follows a rhythm of digital check-ins, with the QR code—at offices, malls and transport hubs—an integral defence against COVID-19 that helps to track, trace and isolate patients.

source https://techxplore.com/news/2021-03-qr-codes-health-passports-china.html