A 38-year-old man with chronic myelogenous leukemia received 203 units of blood and blood products. On Aug 8, 1969, a lung biopsy was performed because of recurrent fever and chills, and malaria-like forms were found which led to identification of Plasmodium vivax on peripheral blood smears. Only one highly suspect infective donor was found—a Vietnam veteran who had donated blood on June 27, from which the leukocytes were administered to the patient on the same day.
Dover AS, Guinee VF. Malaria Transmission by Leukocyte Component Therapy. JAMA. 1971;217(12):1701-1702. doi:10.1001/jama.1971.03190120067017