A notice by the Chengdu government said there were at least 82,000 potential contacts of confirmed Covid-19 cases identified through big data analysis, using the phone signals of its 20 million residents. Phone: Weibo
A notice by the Chengdu government said there were at least 82,000 potential contacts of confirmed Covid-19 cases identified through big data analysis, using the phone signals of its 20 million residents. Phone: Weibo

Police in China’s Chengdu city use big data to trace potential contacts of Covid-19 cases

  • People whose mobile phone signals are detected near the signal of a confirmed Covid-19 case receive text instructions to report to authorities
  • The topical and intriguing term has been searched over 3 million times on Baidu

A notice by the Chengdu government said there were at least 82,000 potential contacts of confirmed Covid-19 cases identified through big data analysis, using the phone signals of its 20 million residents. Phone: Weibo
A notice by the Chengdu government said there were at least 82,000 potential contacts of confirmed Covid-19 cases identified through big data analysis, using the phone signals of its 20 million residents. Phone: Weibo
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