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Vaccines don't cause circulating S protein at any levels that could cause damage to organs.
We can measure some S in the blood after vaccination, but it is at levels of picograms per milliliter. Spike is confined within the cells that the vaccine enters and isn't sprayed around the circulatory system by the vaccine. What is displayed on the surface of those cells is the T-cell epitopes after the protein has been chopped up by proteases and those relatively short sequences are displayed on MHC for the immune system. The spike that leaks out is probably only due to those cells being lysed in the lymph nodes.
That is many orders of magnitude less of an exposure than someone who is infected and has literally billions of virus particles floating around expressing spike on their surface.
The vaccine won't cause any effects via circulating spike, that is just bullshit that was being spread early in the vaccine rollout. The reactions to the vaccine are going to be autoimmune-mediated.
That’s behind Type 1 diabetes. The headline suggests Type 2 is the topic?
Long time T1D here... ugh, this is bad news on top of all the issues that the world in general is experiencing around type 2 diabetes. Add to this that covid isn't going away and we're apt to experience a few more major strains that affect the population at large expect to see the diabetes crisis get far worse.
Will end up being another long term health care crisis unless we can find some way to protect against the behavior. Diabetic care is expensive, in the US directly, but even in universal healthcare countries, it is a very material, time, and effort requiring illness that needs continuous treatment and monitoring. Especially in the case of T1 where insulin and constant blood sugar monitoring is needed.