The genetic engineering of organ-donor animals to decrease the risk of human immune system rejection poses ethical and psychological challenges to the long-held boundary between humans and other animal species.
The implementation of breakthrough quality improvement initiatives has been successful in closing the gap between the number of organs that are available and the number of patients who need them.
The AMA's Code of Medical Ethics' contains a large collection of opinions regarding organ donation and transplantation that continue to shape the ethics discussion surrounding these topics.