The discovery of an infected pig at a backyard farm in Oregon raises concerns about bird flu's potential to become a human threat.

Surgeons at Massachusetts General Hospital said they transplanted a genetically edited pig kidney into a living human for the first time. The 62-year-old recipient has end-stage kidney disease.

Scientists are optimistic that gene-edited animals could provide a new source of organs for transplantation. Pig organs modified to minimize rejection are now being tested in humans.

Pigs are a huge part of Georgia’s economy. They can also cause a lot of problems. A University of Georgia report last year says feral swine caused...