Seems more like he only stated he saw POTENTIAL. You should do your own research of various sources and see how you feel about it afterwards. Not sure what proof can really be offered when prions don't necessarily show symptoms right away. If it can be a slow build that takes decades depending on the persons own DNA makeup,how can it ever be proven really?10-20 years from now you could blame a number of things,they'll probably just blame granny for passing it down

.
People will probably say "Why worry about what could happen that far away,when there's a pandemic right now?". But to me I think that's a shortsighted question,that is only a good question depending on the age of the person your asking.