The procedure had raised hopes that advances in cross-species organ donation could one day solve the chronic shortage of human organs available for donation
This handout photo released by the University of Maryland School of Medicine on January 10, 2022 shows surgeons performing a transplant of a heart from a genetically modified pig to patient David Bennett, Sr., in Baltimore, Maryland, on January 7, 2022. (Credit: UNIVERSITY OF MARYLAND SCHOOL OF MEDICINE / AFP)