Apple and Google are building a virus-tracking system. Health officials say it will be practically useless. – The Washington Post

Apple and Google are building a virus-tracking system. Health officials say it will be practically useless.  The Washington PostAs an epidemiologist, I know how well contact tracing could work for coronavirus  The GuardianFactbox: The race to deploy COVID-19 contact tracing apps  ReutersApple and Google got their way in the coronavirus tracking fight in Europe  PoliticoDon’t rely on contract-tracing apps  The EconomistView Full Coverage on Google News

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