Covid-19 health code: how Hong Kong can reopen the mainland border

Decoding the demands of mainland Chinese authorities before the border with Hong Kong can reopen appears to have become a big guessing game for ordinary residents and bureaucrats alike. One key stumbling block has been the issue of the adoption of health codes that could aid detection and prevention of the spread of the coronavirus. Hong Kong has the technological prowess to launch a mainland-style, movement-tracking app for the border reopening, experts have said, but privacy concerns and public acceptance could emerge as major obstacles. The mainland's use of an app, the so-called health code, which can store the travel…