A genetically engineered pig kidney helped Towana Looney enjoy 130 days without the need for dialysis before the organ was removed last week. It’s the longest a human has ever lived with a pig organ,

Towana Looney lived with the kidney longer than any other transplant patient had tolerated an organ from a genetically modified animal.

Doctors have had to remove the pig kidney implanted in a woman after her body rejected it, but her four months living with the animal's organ set a record.