Again: Viruses do not necessarily evolve to be milder—especially if they transmit early, like this one. Our immune system learning about it—via vaccines or infection—can mean better response next time, so milder experience. Not same as virus becoming intrinsically less virulent.https://twitter.com/zeynep/status/1465075561236250631 …
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We haven’t run out of seronegatives in highly vaccinated countries either. And yet the death curves look extremely different. If waves were just about finding the seronegatives, then it wouldn’t make such a huge difference whether countries were leaning on vaccines or infection.
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And there’s this study on Iran that shows they likely did run out of seronegatives and the IFR increased over time. Please reconsider these broad suggestions that infection immunity is as good as vaccine immunity when the evidence isn’t there.https://www.medrxiv.org/content/10.1101/2021.10.04.21264540v1 …
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