A world first! US doctors transplant gene-edited pig kidneys into patients. The recipient of the transplant was 62-year-old end-stage renal disease patient Richard Slimane.

The patient is recovering well and is expected to be discharged soon. The pig kidneys transplanted during the operation came from eGenesis Bio, a company that uses gene editing to make pig kidneys better compatible with the human body. But experts say more research is needed to better understand the effectiveness of pig kidney transplants.