Vaccinations are one of the cornerstones of pet dog medicine. Vaccines help protect dogs from a variety of contagious and potentially fatal diseases, including distemper, parvovirus, rabies, and kennel cough. Puppies usually receive a series of vaccinations starting at six weeks old, while adult dogs require boosters to maintain immunity. Staying up-to-date on vaccinations not only protects your dog but also contributes to community health by preventing the spread of infectious diseases.