Vaccinations should be given by your veterinarian. This will prevent you from giving the vaccine incorrectly thus rendering the vaccine ineffective. The Parvo vaccine is given in a combination vaccination that includes distemper and several other infectious diseases. Initial vaccines are given in a series--the total number depends upon the age of the dog. Boosters are either yearly or every 3 years depending upon the type of vaccine given. Rabies vaccination can only be administered by a veterinarian and is a legal requirement in the United States. Talk to your veterinarian for further information about vaccines.