Canine Distemper Parvovirus vaccine. Modified Live Virus. Progard DPv is for vaccination of healthy dogs against canine distemper virus infection and canine parvovirus infection. Vaccinate healthy dogs 4 weeks of age or older with 1mL intramuscularly or subcutaneously at 4 weeks old, repeat every 3-4 weeks until 12 weeks of age. Give dogs over 12 weeks old 2 doses 3-4 weeks apart. Avoid vaccinating pregnant bitches. Revaccinate annually.