You won't get prions just by eating a human, you can get prions by consuming a human who already has prions. But the same thing can happen with cows or whatever. The reason kuru became so widespread is because they used to eat the brains of people and at some point someone somewhere randomly got prions so everyone started getting infected. But they never figured out the brain eating-disease connection because prions take a really long time to show up. Bottom line is, the person you are eating has to have a prion disease in the first place.
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its also why no cannibals will ever eat the brains of a person
You won't get prions just by eating a human, you can get prions by consuming a human who already has prions. But the same thing can happen with cows or whatever. The reason kuru became so widespread is because they used to eat the brains of people and at some point someone somewhere randomly got prions so everyone started getting infected. But they never figured out the brain eating-disease connection because prions take a really long time to show up. Bottom line is, the person you are eating has to have a prion disease in the first place.