China has rolled out an app that lets people check whether they have been in close contact with someone infected by the coronavirus. The “close contact detector,” as BBC puts it, notifies users if they have had exchanges with any individuals who have been confirmed or suspected of carrying the virus. All users need to do is scan a QR code with an app like Alipay or WeChat. People at risk are then advised to stay at home or inform local health authorities. Once their phone number is linked, users are asked to fill in their name and ID number.…
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https://thenextweb.com/apps/2020/02/11/coronavirus-app-detector/