Kidney failure patient survived 271 days without dialysis on a pig kidney before needing a human transplant; pig organ didn't infect him throughout the xenotransplantation

A 66-year-old kidney failure patient lived dialysis-free for 271 days on a genetically edited pig kidney, the longest such survival recorded, before the organ failed and he received a human kidney transplant. Doctors confirmed no infection passed from the pig organ to the patient at any point, easing a key safety concern around xenotransplantation.