The Importance of Pet Vaccinations When you were a child you had to have vaccinations at certain points in your life such as measles, tetanus, and other shots. This is important for your pets as well. We will specifically look at dog vaccinations, as they are a very common pet to have. Keep in mind that some of these shots are required for cats as well. Dogs need to have vaccinations to guard against disease. When your dog is a puppy they will need a distemper, hepatitis, leptospirosis, parvovirus, parainfluenza, and corona combination between six to eight, nine to eleven, twelve to fourteen, and sixteen to seventeen weeks. They will also need these shots again every twelve months. The next vaccination is a bordetella administered at fourteen weeks and every six months. Rabies must be given at sixteen weeks and again every twelve to thirty- six months.