The transplant patient ended up dying two months later, though doctors are not conclusively saying whether or not the virus led to the patient's death.
A pig heart, transplanted earlier this year into a human patient whowas infected with a pig virus, according to the surgeon who performed the procedure.
The pig heart was functioning and the Maryland hospital issued periodic updates that the recipient, David Bennett Sr. Bennett seemed to be slowly recovering. In February, the hospital released video of Bennett watching the Super Bowl from his hospital bed while working with his physical therapist. Bennett survived significantly longer with the gene-edited pig heart than one of the last milestones in xenotransplantation — when Baby Fae, a dying California infant, lived 21 days with a baboon’s heart in 1984. The need for another source of organs is huge. More than 41,000 transplants were performed in the U.S. last year, a record — including about 3,800 heart transplants.
The recent string of pig experiments in the past year "is a big step forward," said Dr. David Kaczorowski of the University of Pittsburgh Medical Center. Moving on to first-stage trials in potentially dozens of people is "becoming more and more feasible." "I think different organs will require different genetic modifications," he said in an email to the Associated Press.
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