Claire O'Brien
Cambridge, U.K.--An influential British panel is urging that transplants of organs from animals to humans not be approved until scientists understand more about the risks of transferring infectious agents between species. In a report published this week, the independent Nuffield Council on Bioethics says pig-to-human transplants would be ethically justified if the risks are judged acceptable. But it argues against primate-to-human transplants because they involve a higher risk of transferring pathogens, and the panel says raising primates for their organs is hard to justify on ethical grounds.