Transplanting A Nut Allergy
Gavinsblog writes "New Scientist is reporting that a man who received a liver transplant from a donor who died of anaphylactic shock, went on to develop a life-threatening nut allergy himself. The man had no history of a nut allergy suffered an anaphylactic reaction to a cashew nut 25 days after receiving the liver. Should the liver have read 'Warning: may contain traces of nut'?"
2. The liver produces complex proteins from amino acids. It wouldn't be uncommon for the transplanted liver to produce IgE (immunoglobulin E) which, if I remember correctly, is what causes the reaction that causes anaphylactic shock (fancy term for bad allergic reaction).