15.1 DONOR MALIGNANCIES KNOWN TO BE TRANSMITTED OR KNOWN NOT TO BE TRANSMITTED BY CANCER, ORGAN AND CELL TYPE 15.2 PROVIDING GUIDANCE ON EARLY DETECTION AND PREVENTION OF TRANSMISSION 15.3 PROVIDING GUIDANCE ON IMMEDIATE STEPS TO TAKE FOR INDEX RECIPIENT AND OTHER POTENTIALLY AFFECTED RECIPIENTS 15.4 PROVIDING GUIDANCE ON STEPS TO INVESTIGATE AND CONFIRM THE IMPUTABILITY OF MALIGNANCY TRANSMISSION ‹ 14.2 DELAYED REACTIONS up 15.1 DONOR MALIGNANCIES KNOWN TO BE TRANSMITTED OR KNOWN NOT TO BE TRANSMITTED BY CANCER, ORGAN AND CELL TYPE ›