Looney's surgery marks an important step as scientists get ready for formal studies of xenotransplantation — the use of an animal organ ... donors," LaPook explained. Then Looney heard about pig ...

She had developed a high level of antibodies, which meant she'd likely reject other organs kidney donors had to offer. Looney is the fifth American patient to be given a gene-edited pig organ ...

ABC News visits scientists raising pigs with genetically modified ... He's not just a transplant surgeon, he's also an organ recipient, having received a donor heart. "Even though I had seven ...