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The 1918 pandemic was 2.5% Just wanted to point that out since the way you worded your comment could lead people to believe that it was closer to 0.5%
by 6nf 6y ago
The 1918 pandemic was 2.5%
Just wanted to point that out since the way you worded your comment could lead people to believe that it was closer to 0.5%
- ceejayoz 6y agoThe IFR for the 1918 pandemic was substantially higher than 2.5%. https://www.cdc.gov/flu/pandemic-resources/1918-pandemic-h1n1.html https://www.cdc.gov/flu/pandemic-resources/1918-pandemic-h1n... > It is estimated that about 500 million people or one-third of the world’s population became infected with this virus. The number of deaths was estimated to be at least 50 million worldwide with about 675,000 occurring in the United States. That'd be a 10% IFR.
- dragonwriter 6y agoI think 2-2.5% frequently cited is the estimated IFR in the US.
- topkai22 6y agoI've only seen 2-2.5% cited as a CFR (case fatality rate) for 1918 influenza in the US, not the IFR (infection fatality rate). I don't know if those are assumed to be equivalent for are assumed to be retrospective analysis, but the CFR rate and IFR remain significantly different for COVID-19- ~4% for the all up US CFR rate and estimates anywhere from 0.1% to 1% for the COVID-19 IFR in the US.
- dragonwriter 6y ago> I've only seen 2-2.5% cited as a CFR (case fatality rate) for 1918 influenza in the US, not the IFR (infection fatality rate). That may be the case; the places I've seen it cited it's clearly a US number, and it's usually alongside global infections and deaths, but the denominator of the US number has generally not been clear.