He heals rapidly and hasn't been sick

Even tough, bouncer-looking supermoms have a soft spot for their kids, I guess. I nodded. “What seems to be the problem?”
“Earlier this year,” she said, “he started coming home with injuries. Nothing serious—abrasions and bruises and scratches. But I suspect that the injuries were likely worse before the boy came home. Irwin heals very rapidly, and he’s never been sick—literally never, not a day in his life.”


Brief Cases, B is for Bigfoot, Page 37