How big data helps contain the spread of coronavirus: If you travelled over the past month in China, you just need to provide the flight or train number to find out whether you were companion of a confirmed casepic.twitter.com/rINM9HxDJs
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How big data helps contain the spread of coronavirus: If you travelled over the past month in China, you just need to provide the flight or train number to find out whether you were companion of a confirmed casepic.twitter.com/rINM9HxDJs
