Couple random thoughts from long-time lurker, former poster under a different name:

-Perhaps the immune system doesn't develop immune memory from the spike protein because it views the spike protein as general garbage simply to be removed, instead of viewing it as a virus or bacteria to always watch out for? The spike protein is effectively a fancy glue, which explains the clotting, but it also means your body just treats it is a foreign substance and not a foreign organism.

-If you get vaccinated and then get "the coof", do you develop additional antibodies to the nucleocapsid from that encounter?

Thanks Gen for following the tedious breadcrumbs of knowledge I have not enough patience to dig through!

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I'm not letting my ship get shot out from under my ass! Open fire! - Captain Lindemann