In cats, a parvovirus causes feline distemper. Most skunk organizations recommend Purevax Distemper and Rabies vaccinations. Viral diseases include canine distemper and influenza. Rabies and distemper vaccination programs were initiated to protect the island's wildlife. Prevention is by vaccinating for canine adenovirus, distemper, parainfluenza, and "Bordetella". The DA2PPC vaccine protects against the debilitating and deadly disease canine distemper. The rinderpest virus (RPV) was closely related to the measles and canine distemper viruses. Canine distemper occurs in raccoon dogs inhabiting the northern Caucasus. A vaccination program has been initiated to protect Catalina Island foxes from canine distemper. There is no antiviral drug effective against the canine distemper virus. Canine distemper virus affects nearly all body systems. The European polecat may suffer from distemper, influenza, the common cold and pneumonia. Canine distemper devastated the Meeteetse ferret population in 1985. Geographically distinct lineages of the canine distemper virus are genetically diverse. It is sometimes confusingly referred to as "cat plague" and "feline distemper".