This article raises some interesting points. Have death rates from COVID-19 gone done since March?https://www.npr.org/sections/health-shots/2020/10/20/925441975/studies-point-to-big-drop-in-covid-19-death-rates …
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Now, I think it's reasonable to assume that the proportion of people who die after being infected by COVID-19 will fall over time. It's probably true that being infected today is less deadly than earlier this year
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That being said, I'm quite skeptical of the evidence presented. This story seems to claim that death rates have dropped ENORMOUSLY, while I would expect something more in the range of a relative 10-20% drop (say from 25% to 20%)pic.twitter.com/ursEABLS8V
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The study that's linked to to verify the statement above is this one, and it's an interesting piece of research looking at some hospitals in NYC and the people they admitted for COVID-19 over time https://www.medrxiv.org/content/10.1101/2020.08.11.20172775v1.full.pdf …
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Looking at the results table, something immediately springs out. The denominator here - the number of patients being admitted by week - has changed DRAMATICALLY over timepic.twitter.com/5yPTtA3VeV
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Perhaps more worryingly, that precipitous drop from 25% death rate to 7.6% cited in the news article appears to be based on...a single week of data. If you move back two weeks, there's no drop in death rates at all!pic.twitter.com/2JFezlEklb
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There also isn't really any trend here - a nonsignificant drop from 23% to 21% over two months, and then a sudden halving of the death rate in just one week, which corresponds to a sudden decrease in the average age
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Replying to @GidMK
Thanks for taking all this time to read our study! The timing of this story is unfortunate because we have an expanded, updated paper coming out next week with more data (through end august), more patients and more robust conclusions. will link to it as soon as available online.
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Wonderful, can't wait to read 
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