Years ago The Guinness Book of Records claimed that the deadliest disease was “Laughing Sickness” which afflicted the Fore Tribe in New Guinea. It was 100% fatal.
Turns out that it was basically Mad Cow Disease — they ate the brains of loved ones as part of their funeral rites. This — it turns out — is a bad idea.
I believe they abandoned the practice, and “Laughing Sickness” stopped being a problem.
Yup,among the many strange and wonderful things I learned from working 20+ years at a major hospital was once talking to a Medical Resident about CreutzfeldtJakob Disease,which is the scientific name for what you're describing.
Now,whenever I give platelets at the Pediatric hospital near me they ask me if I've ever had the disease.
Had a friend die of that in the UK. It was horrible.
I still can’t donate blood because I lived in the UK during the outbreak years.