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- The study, which was conducted by researchers at the University of California at Berkeley.
- The study examined the spread of the virus in six countries: the U.S., China, South Korea, Italy, France and Iran.
- The study found that those countries managed to avoid 62 million confirmed cases of Covid-19 by implementing lockdown or stay-at-home orders.
- The study estimated 4.8 million cases were avoided in the U.S.
- Because many infections are not formally diagnosed, the researchers estimated that restrictions actually prevented as many as 530 million infections in those countries — 60 million in the U.S.
- Without the restrictive policies, researchers estimated that the early infection rates of Covid-19 would have grown at an average of 43% per day across the six countries.