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Coronavirus pandemic
ChinaPeople & Culture

How big data is dividing the public in China’s coronavirus fight – green, yellow, red

  • Cutting-edge technologies and old-fashioned surveillance are being used to decide who can and who can’t go back to work
  • But the smart technology is not always that intelligent

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People with QR codes coloured in red are not allowed to enter public venues such as subway stations, restaurants or shopping malls for at least 14 days. Photo: Handout
Inkstone

This article was written by Viola Zhou and originally appeared in Inkstone, a daily digest of China-focused stories.

On Valentine’s Day, a 36-year-old lawyer Matt Ma in the eastern Chinese province of Zhejiang discovered he had been coded “red”.

The colour, displayed in a payment app on his smartphone, indicated that he needed to be quarantined at home even though he had no symptoms of the dangerous coronavirus.
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Without a green light from the system, Ma could not travel from his ancestral hometown of Lishui to his new home city of Hangzhou, which is now surrounded by checkpoints set up to contain the epidemic.

Ma is one of the millions of people whose movements are being choreographed by the government through software that feeds on troves of data and issues orders that effectively dictate whether they must stay in or can go to work.

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Their experience represents a slice of China’s desperate attempt to stop the coronavirus by using a mixed bag of cutting-edge technologies and old-fashioned surveillance. It was also a rare real-world test of the use of technology on a large scale to halt the spread of communicable diseases.

“This kind of massive use of technology is unprecedented,” said Christos Lynteris, a medical anthropologist at the University of St Andrews who has studied epidemics in China.

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