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flag A New Hampshire man with kidney failure lived 271 days with a genetically modified pig kidney, the longest such case in the U.S.

flag Tim Andrews, a 67-year-old New Hampshire man with end-stage kidney disease, resumed dialysis after living with a genetically modified pig kidney for 271 days—the longest recorded duration in the U.S. flag The kidney, edited with 69 genetic changes to reduce rejection and eliminate viruses, was part of a pilot study at Massachusetts General Hospital. flag His case, along with another successful transplant in a New Hampshire man and a third planned, is advancing research into xenotransplantation amid a severe U.S. organ shortage, with over 100,000 people awaiting transplants.

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