As China lifts its coronavirus lockdowns, authorities are using a color-coded health system to dictate where citizens can go. Here's how it works.

Business Insider

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· Provinces and cities across China are slowly lifting their strict coronavirus lockdown measures. Wuhan, where the coronavirus broke out, plans to end its lockdown on April 8.
· Local authorities are trying to prevent further spread by controlling citizens' movements via smartphone software installed in WeChat and Alipay, two...

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