TH IS year's International AIDS SocietyConference on HIV Pathogenesis, Treatment and Preven-tion, held in Kuala Lumpur, Malaysia, made major head-lines when Timothy Henrich, an American doctor, an-nounced that two more cancer patients may have beencured of HIV after receiving bone-marrow transplants totreat lymphoma. Both patients had been taking retroviralmedication, and continued to do so after the transplants