Canine Distemper-Adenovirus Type 2-Parainfluenza-Parvovirus Vaccine. Modified Live Virus, Leptospira Bacterin. Aids in the prevention of disease caused by canine distemper virus, adeonvirus type 1 (hepatitis), adenovirus type 2 (respiratory disease), canine parainfluenza virus, canine parvovirus, and leptospirosis. Give healthy dogs 6 weeks of age or older 1mL intramuscularly or subcutaneously. Repeat at 2-4 week intervals until 12 weeks old. Minimum of 2 doses is required for primary immunization. Do not vaccinate pregnant bitches. Revaccinate annually. For veterinary use only.