2 ms·That does not affect the IFR, it just make it harder to measure.by anoncake 6y agoThat does not affect the IFR, it just make it harder to measure.noja 6y agoYou don't know the number of people who die who were infected if you didn't test them. I think your argument is only valid when the death rate is the same amongst tested and untested people.anoncake 6y agoI don't know how, but epidemiologists are able to estimate it.