Tests conducted per confirmed case of COVID-19 Our World Shown is the rolling 7-day average. The number of tests divided by the number of confirmed cases. Not all in Data countries report testing data on a daily basis. 2,000 Australia 1,000 500 200 100 50 Italy 20 - India 10 Mar 19, 2020 Apr 30 Jun 19 Aug 8 Sep 27, 2020 Source: Official data collated by Our World in Data CC BYCase fatality rate of the ongoing COVID-19 pandemic Our World in Data The Case Fatality Rate (CFR) is the ratio between confirmed deaths and confirmed cases. During an outbreak of a pandemic the CFR is a poor measure of the mortality risk of the disease. We explain this in detail at OurWorldInData.org/Coronavirus 14% 12% Italy Jun 25: methodology change 10% 8% 6% 4% Australia 2% W India Jun 17: earlier deaths added 0% Feb 24, 2020 Apr 30 Jun 19 Aug 8 Sep 28, 2020 Source: European CDC - Situation Update Worldwide - Last updated 28 September, 10:05 (London time) CC BY