[arcticbull]

Using CFR to determine fatality rate of COVID is as effective as it would be for skydiving. If you only count people who go to hospital (because they're frightfully sick -- or splatted out of an aircraft) and compare that to those who walk out of hospital you're exhibiting massive adverse selection bias.

For H1N1 swine flu, CFR was between 0.1% and 5.1% depending on the country. The IFR was 0.02%.

For COVID it's between 0.07% and 15%. The IFR is probably in the lower quartile of the 0.1%-1% range. [1]

[1] http://cebm.net/oxford-covid-19-evidence-service/