COVID19 GRAPHS

The CFR is very easy to calculate. You take the number of people who have died, and you divide it by the total number of people diagnosed with the disease. So if 10 people have died, and 100 people have been diagnosed with the disease, the CFR is [10 / 100], or 10%.

During an outbreak – and especially when the total number of cases is not known – one has to be very careful in interpreting the CFR. Here is a detailed explainer on what can and can not be said based on current CFR figures.