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.

When Towana Looney completed her surgery in November, it was considered a groundbreaking medical feat for alternative organ transplants.