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Covid Economics: Vetted and Real-Time Papers 6 - Assessing the Spread of Covid-19 Without Mass Testing

How many people have already been infected with Covid-19? Without randomised mass testing, current estimates vary enormously. Meanwhile, post-lockdown policy choices based on this data are literally a matter of life and death. David Miles of Imperial College tells Tim Phillips about how he estimated the asymptomatic rate of infection, and the surprising result he found.