Mystery surrounds death of first pig-heart transplant patient

The US surgeon who performed the transplant says porcine cytomegalovirus may have contributed to his death, but it is still not known

Surgeons say they "don't know" why the first person to receive a heart transplant from a pig died two months after the groundbreaking procedure.

Surgeons prepare a pig heart for transplantation. University of Maryland School of Medicine.

The University of Maryland team

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