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<div style="font-family:sans-serif"><div style="white-space:normal"><p dir="auto">Are you saying that 95% to 97% of flu infections are asymptomatic (“cases” vs “infections”)? What is a source for this?</p>
<p dir="auto">—Barry</p>
<p dir="auto">On 12 Sep 2020, at 10:44, Prof David West wrote:</p>
<blockquote style="border-left:2px solid #777; color:#777; margin:0 0 5px; padding-left:5px"><p dir="auto">IFR = infection fatality rate<br>
CFR = case fatality rate<br>
<br>
A "case"requires symptoms.<br>
<br>
Seasonal flu has an IFR of 0.1% and a CFR of 2-3%</p>
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