Xenotransplantation failure dissipated. An American infant girl known as "Baby Fae" with hypoplastic left heart syndrome was the first infant recipient of a xenotransplantation, when she received a baboon heart in 1983. The procedure was performed by Leonard L. Bailey at Loma Linda University Medical Center in Loma Linda, California. Fae died 21 days later due to a humoral-based graft rejection thought to be caused mainly by an ABO blood type mismatch, considered unavoidable due to the rarity of type O baboons. The graft was meant to be temporary, but unfortunately a suitable allograft replacement could not be found in time.
Fred (baboon) the wounded received medical attention after the attack. When monitors were mobilised to disrupt Fred's activities the baboon initiated a violent campaign against these too. Human negligence and "misguided efforts" were found to have led to Fred's "demise" – "Because people want to love, laugh at and be entertained by baboons, they start a cycle of events that can lead to tragedy, as in the case of this baboon", the city said, adding "He targets cars with bags and visible food, but it is his ability to open closed car doors that surprised everyone". The decision to have him euthanised