Considering the fact that rabies will kill you, and once you show symptoms you are going to die no matter what the Dr does for you, and there is a very high likelihood of bacterial infection either way, it seems pretty clear to me that your first course of action should be: A) getting you kid to a Dr and B) Having health authorities verifying the rabies vax on the dog.

Then maybe sue the [bleep] out of them after you take care of your kids health. This is literally life and death, even if there is only a .01% chance the dog had rabies why would you take that chance?

And this is obvious [bleep] that any school admin should either know or have a nurse on hand that knows.