<!DOCTYPE html><html><head><title></title><style type="text/css">p.MsoNormal,p.MsoNoSpacing{margin:0}</style></head><body><div style="font-family:Arial;">Barry, I do not believe I am saying anything other than IFR and CFR are often mixed up.<br></div><div style="font-family:Arial;"><br></div><div style="font-family:Arial;">I saw a three paragraph article in a news paper about the confusion between IFR and CFR. I then got the four numbers directly from WHO and CDC press releases.<br></div><div style="font-family:Arial;"><br></div><div style="font-family:Arial;">davew<br></div><div style="font-family:Arial;"><br></div><div style="font-family:Arial;"><br></div><div>On Sat, Sep 12, 2020, at 2:51 PM, Barry MacKichan wrote:<br></div><blockquote type="cite" id="qt" style=""><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?<br></p><p dir="auto">—Barry<br></p><p dir="auto">On 12 Sep 2020, at 10:44, Prof David West wrote:<br></p><blockquote style="border-left-color:rgb(119, 119, 119);border-left-style:solid;border-left-width:2px;color:rgb(119, 119, 119);margin-top:0px;margin-right:0px;margin-bottom:5px;margin-left:0px;padding-left:5px;"><p dir="auto"></p><div>IFR = infection fatality rate<br></div><div> CFR = case fatality rate<br></div><div> <br></div><div> A "case"requires symptoms.<br></div><div> <br></div><div> Seasonal flu has an IFR of 0.1% and a CFR of 2-3%<br></div><p></p></blockquote></div></div><div>- .... . -..-. . -. -.. -..-. .. ... -..-. .... . .-. .<br></div><div>FRIAM Applied Complexity Group listserv<br></div><div>Zoom Fridays 9:30a-12p Mtn GMT-6 <a href="http://bit.ly/virtualfriam">bit.ly/virtualfriam</a><br></div><div>un/subscribe <a href="http://redfish.com/mailman/listinfo/friam_redfish.com">http://redfish.com/mailman/listinfo/friam_redfish.com</a><br></div><div>archives: <a href="http://friam.471366.n2.nabble.com/">http://friam.471366.n2.nabble.com/</a><br></div><div>FRIAM-COMIC <a href="http://friam-comic.blogspot.com/">http://friam-comic.blogspot.com/</a> <br></div><div><br></div></blockquote><div style="font-family:Arial;"><br></div></body></html>