Original: Canine distemper is a viral disease that affects animals in the families Canidae , Mustelidae , Mephitidae , Hyaenidae , Ailuridae , Procyonidae , Pinnipedia , some Viverridae and Felidae ( though not domestic cats ; feline distemper or panleukopenia is a different virus exclusive to cats ) .
Simplified: Canine distemper is a viral disease that affects animals in the families Canidae , Mustelidae , Mephitidae , Procyonidae and some Felidae ( though not domestic cats is a different virus exclusive to cats ) .