First -- definitely find out the status on the little girl! (my thoughts are with the family). Things happen and I'm sorry this happened.
Second -- since the girl & mom are going to the hospital, a report will be filed with Animal Control (automatic). Get your paperwork in order and ready. I'm not sure if they will insist on quarantine or not, but they will want to talk with you and discuss the situation. If quarantine is required, it will be for 10 days and you can do that at PCAC or your vet (but glad to hear the dog is up to date, I'm sure that will be a reasurance to all). PCA