See the report by Imperial: https://www.imperial.ac.uk/media/imperial-college/medicine/mrc-gida/2020-03-30-COVID19-Report-13.pdf https://www.imperial.ac.uk/medi

See the report by Imperial: https://www.imperial.ac.uk/media/imperial-college/medicine/mrc-gida/2020-03-30-COVID19-Report-13.pdf https://www.imperial.ac.uk/media/imperial-college/medicine/m... Looks like Spain had 6 million infections but only 140 thousand cases. So the actual uncomfirmed rate could be 97%.