[native_samples]

It's not facetious. It's quite the stretch to say that if you assume literally any injection could cure any disease, it's OK to describe any found correlation as a "link".

This sort of intellectual looseness is not free. People are learning to treat claims by scientists as untrue, and it's partly because of this sort of press release/paper hacking.

Finding a correlation between two random medical data sets does not mean there is a "link" in any English that normal people would use it. It definitely does not mean there's an "effect" or that one thing "reduces" the other. It might mean there's something worth a followup investigation there, though given the prevalence of non-reproducible p-hacked results in science, also maybe not.

Regardless, before doing press releases and going to the public with such a claim there is a large amount of work needing to be done to actually prove causality. Moreover you'd then want to ask why does such a thing happen when there is no prior reason to suspect such an impact.

[2muchcoffeeman]

> It's not facetious. It's quite the stretch to say that if you assume literally any injection could cure any disease, it's OK to describe any found correlation as a "link".

I don't see it that way. Nick Cage has nothing to do with Alzheimers. We're not finding correlations with Nick Cage movies and then saying "Nick Cage linked to reduction in Alzheimers".

They are suggesting that flu vaccination may have some 2nd order effect beyond protecting you from the flu. Which could be reasonable, science reporting and poor research notwithstanding.

Either way, the refrain "Correlation does not imply causation" is over used in my view. And I'd rather learn the specific ways the research is flawed.

[native_samples]

It could be reasonable but like I said, it's a massive stretch. Flu vaccines are not designed to stop Alzheimer's. There is no argued or known biological pathway through which that might happen. Alzheimer's experts have not previously identified flu vaccines as doing anything that might help. And it probably isn't flu itself causing Alzheimer's because, as I've noted elsewhere in this thread, flu vaccines don't appear to have actually reduced overall flu mortality and some studies show negative effectiveness.

https://www.healio.com/news/primary-care/20200302/flu-vaccin...

I don't think there's a really killer argument here in the abstract: I personally find it unreasonable to imply causation from any medical intervention to any possible outcome based on just a correlation. Yes, it's more reasonable than Nick Cage being associated, but not reasonable enough. That's a judgement call however. I am guided in it by the massive costs and problems created when scientists claim vaccines are miracle cures without sufficiently robust data.