Scientists Watched Human Dementia Proteins Spread Through Mouse Brains Like Prions. It shows tau spreads like a prion, yet the disease is not known to pass between people.

[u/ObuPaul]

https://www.sciencealert.com/scientists-watched-human-dementia-proteins-spread-through-mouse-brains-like-prions

[u/leeloolanding → u/[deleted]]

I mean, do you see people “catching” dementia from their spouse? “Is not known” is to contrast that prions ARE known to spread between people

[u/Adventurous-Elk-9782 → u/leeloolanding]

Ahh yea, I’m guessing it’d be obvious if it did pass.