how often should a dog get his shots
A second vaccination is recommended after 1 year, then boosters every 3 years. Core dog vaccine. Distemper. At least 3 doses, given between 6 and 16 weeks of age. 2 doses, given 3-4 weeks apart. Puppies need a booster 1 year after completing their initial series, then all dogs need a booster every 3 years or more often.istemper. At least 3 doses, given between 6 and 16 weeks of age. 2 doses, given 3-4 weeks apart. Puppies need a booster 1 year after completing their initial series, then all dogs need a booster every 3 years or more often.