Canigen DHP contains attenuated antigens to stimulate active immunity in dogs against canine distemper virus, canine parvovirus, infectious canine hepatitis caused by canine adenovirus 1 and respiratory disease caused by canine adenovirus type 2. For the active immunisation of dogs to reduce clinical signs of disease caused by canine distemper virus infection; to prevent clinical signs and reduce viral excretion caused by canine parvovirus infection; to reduce clinical signs of infectious canine hepatitis and viral excretion due to canine adenovirus 1 infection and to reduce clinical signs of respiratory infection and viral excretion caused by adenovirus type 2 infection. Specific claims Onset of immunity: one week. Duration of immunity: three years.