Blood transfusions can expose recipients to transmissible biologic ... transfusion. In a prospective US cohort study of 9539 elderly can- cer-free women with self-reported histories of blood transfusion,. 440 cancers were observed, .... We identified all transfusion recipients who did not have a previous. read more
I guess you can never say that "it is impossible" to develop cancer as a result of a blood transfusion. HIV and Hepatitis C were transmitted by transfusion before the viruses were identified and screened out of the donor blood, and it is theoretically possible that an as yet unknown oncogenic virus exists (or could emerge) that might be transmitted by transfusion and cause cancer in the recipient. read more
First the donor, who appears completely healthy, would have to have cancer cells in their blood, such as with leukemia, and not know it.The donated unit must pass the all the lab tests. read more