“I said, ‘Get the dog to the vet right now, and I will meet them there,’” Wood said.

At first, Wood was primarily concerned that the puppy, who’s about 8 weeks old, would have suffered from oxygen deprivation inside the box, especially since he’d been in there for at least 24 hours.

While the puppy did seem feeble and sluggish, which could be the result of oxygen deprivation, the vet also discovered something else — the puppy had parvovirus, a disease that attacks and breaks down a dog’s intestinal linings. Left untreated, parvo can be deadly — but fortunately, the puppy was now getting the help he needed.