Canine Distemper-Adenovirus Type 2 Parainfluenza- Parvovirus Vaccine. Modified Live Virus. For vaccination of healthy dogs as an aid in preventing disease caused by canine distemper virus, canine adenovirus type 1, canine adenovirus type 2, canine parainfluenza virus and canine parvovirus. Aseptically rehydrate the freeze-dried vaccine with the sterile diluent provided, shake well, and administer 1mL subcutaneously or intramuscularly. Healthy dogs 6 weeks of age or older should receive 3 doses, each administered 3 weeks apart. Annual revaccination with a single dose is recommeneded. Vaccination of pregnant bitches should be avoided.