Earlier quoted context omitted.
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The issue specifically is: early claims of vaccines preventing infection or even spread weren't supported by the trials. Who made such stupid claims and __why__? My own recollection, from Australia watching the US, was the the US political administration of the time turned any scientific based discussion into a complete shit show - many images of cowered CDC employees sucking their faces in while Trump v1.0 babbled o…
Fauci, for example, claimed very early on that we needed herd immunity and would get thee with around a 60% vaccination rate. He both knew that number was too low for the hypothesis of herd immunity, raising it as time went on, and that herd immunity requires a treatment to prevent transmission, implying the vaccines were known to do that (they weren't).
More egregiously there was a political push, picked up by the media as well, that basically boiled down to an argument that anyone refusing the vaccine is actively killing old people and children. They would go so far as to say unvaccinated people shouldn't be allowed into hospitals for care for unrelated health conditions.
All that to say, my point was simply that this review paper seems to be making claims that would require research I never saw happen. Sadly the pay wall means I can't read their full claims, but even the overview of their results seem dubious.