Your comment: I believe the prions that are of most consequence come from meat.
Answer: This is what the supposed Experts have to say:
Prions are ---simple--- proteins that are much smaller than viruses. They are unique since they lack a genome. All other known infectious agents contain genetic material.
Answer: Thus any Non-Complexed Protein [Funny Proteins(NPN)] may be considered Pirons !!!!!!!!!!!!!!