The Pandemic’s Big Mystery: How Deadly Is the Coronavirus? – The New York Times
Instead, it had relied on a mix of data sent in by member countries and by academic groups, and on a meta-analysis done in May by scientists at the University of Wollongong and James Cook University in Australia.
Those researchers looked at 267 studies in more than a dozen countries, and then chose the 25 they considered the most accurate, weighting them for accuracy and averaged the data. They concluded that the global I.F.R. was 0.64 percent.
The C.D.C.’s estimate for the United States is lower: an I.F.R of 0.4 percent, according to a set of planning scenarios released in late May. The agency did not respond to requests to explain how it arrived at that figure, or why it was so much lower than the W.H.O.’s estimate. By comparison, 0.4 percent of the United States population is 1.3 milli...