June 2020 A. General part Studies of Covid-19 lethality Stanford professor John Ioannidis published an overview of Covid-19 antibody studies. According to his analysis, the lethality of Covid19 (IFR) is below 0.16% in most countries and regions. Ioannidis found an upper limit of 0.40% for three hotspots.In its latest report, the US health authority CDC reduced the Covid19 lethality (IFR) to 0.26% (best estimate). Even this value may still be seen as an upper limit, since the CDC conservatively assumes 35% asymptomatic cases, while most studies indicate 50 to 80% asymptomatic cases.At the end of May, however, Swiss immunologists led...
