New Data Suggest the Coronavirus Isn’t as Deadly as We Thought

A study finds 50 to 85 times as many infections as known cases—meaning a far lower fatality rate.

Los Altos Hills, Calif.

香蕉视频苹果下载The Covid-19 shutdowns have been based on the premise that the disease would kill more than two million Americans absent drastic actions to slow its spread. That model assumed case fatality rates—the share of infected people who die from the disease—of 1% to 3%. The World Health Organization’s estimated case-fatality rate was 3.4%.

Some...