#immuno

A 57-year-old man with life-threatening heart disease has received a heart from a genetically modified pig, a groundbreaking procedure that offers hope to hundreds of thousands of patients with failing organs.

It is the first successful transplant of a pig’s heart into a human being. The eight-hour operation took place in Baltimore, and the patient, David Bennett Sr. of Maryland, was doing well three days later, according to surgeons at the University of Maryland Medical Center.