He may have loved to eat kiwifruit. He may have been indifferent towards the fuzzy green egg-shaped things. He may not have liked them at all. But, whatever his attitude towards the innocent-looking berries was, he was not allergic to them. That is, until, at age 26, he needed a bone marrow transplant to battle acute lymphocytic leukemia. His sister turned out to be a matching donor, and the transplantation was a success. It kept the leukemia in check.