Canine distemper is a highly contagious disease of carnivores caused by a paramyxovirus. The virus is widespread and mortality in juveniles is higher than in adults. It is excreted in the saliva, respiratory secretions, urine, and feces and can be transmitted from dog to dog by aerosol and direct contact. Typical signs of canine distemper seen in the domestic dog include respiratory and intestinal problems such as coughing, diarrhea, vomiting, nasal and ocular discharge, anorexia, and hyperkeratosis of the nasal plenum and feet pads.