absolutely stunned by how many people seem to think novelty => severity is about HOST EVOLUTION somehow & not... immune memory. like, how does one misunderstand how the adaptive immune system work *that* badly?
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remember, the novel -> non-novel transition happens w/o ANY evolutionary changes. to the virus *OR* host.
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Replying to @wanderer_jasnah
It’s amazing how many people manage to miss the point but I blame the incorrect but pretty widespread misunderstandings about virulence decreasing rather than immune memory playing a role in transition to endemicity. (Also vaccines: how do people think they work?).
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