Well, Rose, he can quarantine them for a certain period of time and that's not just watching them. They'd have to be caged. It's longer than the 10 days in a bite case but I can't recall exactly what the length is. I had a kitten that I was fostering years ago that had rabies. All of my animals had to have their rabies shots boosted. If the dog tests positive (or if it did), the county and state health departments get involved and they take it very seriously and investigate thoroughly. The year the kitten tested positively, it was the only cat that year in the state of Maryland that was known to have tested positively for rabies. What luck...