He was 12 years old when he ate his last meal. He did not know what anaphylactic shock was, but that's what happened to him after traces of peanut in his food triggered a severe immune response. His lungs were transplanted into a 42-year-old female with no prior history of peanut allergy. Seven months after the transplant, she suffered anaphylactic shock after eating a peanut butter cookie. She survived but suffered a second anaphylactic shock later that same year. After doctors questioned her, she recalled that the first episode had occurred four days after the transplant. Skin prick testing confirmed sensitization to peanuts. This kind of peanut allergy transfer from donor to recipient has also been described after liver transplantation.
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