Baby Fae body began generating isohaemagglutinins, but a suitable donor could not be found in time. Prior to the procedure, no infant heart transplant—even with human hearts—had been successfully performed due to a lack of infant human hearts. To address this issue, Bailey had become a pioneer in the research of cross-species heart transplants, which had included "more than 150 transplants in sheep, goats, and baboons". Multiple surgeons had previously experimented with baboon heart implants, leading some to speculate even that baboons could be farmed in the future for such purposes. When asked why he had picked a baboon over a primate
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