What are they trying to hide?

Mad Cow Disease:
-known as bovine spongiform encephalopathy, or BSE.

-People cannot get mad cow disease. But in rare cases they may get a human form of mad cow disease called variant Creutzfeldt-Jakob disease (vCJD)

-caused by infectious proteins called prions (say "PREE-ons").

Creutzfeldt-Jakob disease Vs Kuru

Kuru:
-It led to the creation of a new class of diseases including Creutzfeldt-Jakob disease,

-belongs to a class of diseases called transmissible spongiform encephalopathies (TSEs), also called prion disease

-people contracted the disease by performing cannibalism on corpses during funeral rituals

https://myhealth.alberta.ca/Health/Pages/conditions.aspx?hwid=tu6533

https://www.healthline.com/health/kuru#causes