New York officials introduced the Excelsior Pass app earlier this year as the country’s first government-issued vaccine passport, designed to help jump-start the state’s economy.

New York’s vaccine passport could cost taxpayers $17 million

Explained: European COVID-19 travel certificate; US considers own vaccine passport

Pandemic-hit China on Tuesday launched a digital certificate that displays user's vaccination status and virus test results for domestic travellers paving the way for a "virus passport" in the future.

China launches digital certificate, precursor to 'virus passport'

digital-certificate

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