Interesting study-
https://neurosciencenews.com/flu-vaccination-alzheimers-20909/
Interesting indeed, but focused entirely on correlation. If I had to guess I’d say this study says more about the habits/lifestyle choices of those who chose to get inoculated vs. those who do not.
However, I’ve been reading more and more theories lately about Alzheimers being caused by unknown pathogens rather than a genetic flaw. Who knows. I hope we figure it out soon though.