1. Vaccinations prevent many pet illnesses.
2. Vaccinations can help avoid costly treatments for diseases that can be prevented.
3. Vaccinations prevent diseases that can be passed not only from animal to animal but also from animal to humans.
4. Diseases prevalent in wildlife, such as rabies and distemper, can infect unvaccinated pets.
5. Many areas, local or state ordinances require certain vaccinations of household pets.