If you suspect that your pet has been bitten by an animal that is rabid or potentially rabid, you should take it to a veterinarian immediately. If your pet is up-to-date on his rabies vaccinations, then a booster should be administered immediately and your pet should be observed for a period of time, according to the local requirements.
Your veterinarian should report the biting incident to the local health department so that the potential rabies case can be monitored. The animal that bit your pet should be identified to the local animal control office, and if it is still at large, animal control can capture and submit it for diagnostic testing. If rabies is not present in the tissues of the biting animal, the exposed pet that is up-to-date with its vaccinations is not at risk for rabies. If there is no way to confirm whether the biting animal was rabid, then veterinary experts usually assume exposure to rabies, and the bitten pet should receive a booster shot and be observed for a period of time according to the state or government requirements.
If the biting animal was rabid, and your pet was not up-to-date with their rabies booster or was not vaccinated at all, then the local public health officer may recommend that the pet be immediately euthanized. Pets, with up to date rabies vaccination that have been exposed to a wild animal should be given a booster shot and observed for a period of time according to the local requirements.