Prion diseases include:

-in sheep, scrapie

-in humans, Kuru and Creutzfeldt-Jacob

-in cows, BSE ("mad cow")

-in deer, Chronic Wasting Disease (CWD)

-in cats, feline spongiform encephalopathy

Scrapie is particularly known, deadly, and long-lived. The toxin proteins can survive for a decade in soil, and infect a new host years after it emerged.

https://en.wikipedia.org/wiki/Transmissible_spongiform_encep...

They're all the same in my understanding, just named differently because they have been observed separately before any understanding about PrP existed. And yes, that means they're also all long-lived. These proteins do not decay like more useful molecules or more complex organic matter.