Calculating the real number of infections from Covid-19 on some European Countries on June 1st.
Obtaining the Infection Fatality Rate On the past two weeks two most important studies were made public. One from the Public Health Agency of Sweden1 reporting the calculated real infection fatality rate of Covid-19 in Stockholm, and another from the MIT2 . Both having the same goal: estimating the real infection fatality rate (IFR). This corresponds to the odds of dying from the disease, including those who have mild or no symptoms. How does this differ from the values reported by official figures? Official figures only include the number of people having been tested positive. And people without symptoms, nor with a known contact with another person having tested positive, don’t often get tested, unless it gets into a random population study. With this in mind, the ratio you get with the current figures is known as Case Fatality Rate (CFR), which corresponds to the number of fatalities based on the number of known infections. Knowing the number of how many people went undetected is what allows you to calculate the most import indicator of a pandemic disease: the actual fatality rate. Countries with the lowest CFR puts it at around 3.9%, such as Czechia, where others, such as Italy or Belgium exceeds 10%. …