Kuru is caused by eating the brain of an infected human. Can’t get it from a placenta.
Same with prion disease. Nothing genetic about it. You get it by consuming prions which reproduce without using DNA. Weirdest thing I’ve ever heard of. Cooking doesn’t stop it.
BTW, some vegans consider eating the placenta the only time they can ethically consume animal protein without exploiting animals. So they make stew and have a party. Which come to think of it is weirder than the reproduction of prions.
[ Kuru is caused by eating the brain of an infected human. Can’t get it from a placenta. ]
I disagree respectfully, if the newborn had any head trama during delivery ( not that out of question as the skull of the newborn gets compressed during childbirth ). Proteins could leak through the blood brain barrier and end up in the placenta. Granted this risk could be .000001% but it is still there to say nothing with genetically inheredited malformed proteins living outside of the babies brain.