Canine distemper is a serious viral disease that affects families of the Viverridae, Pinnipedia, Canidae, Mustelidae, Mephitidae, Felidae and Procyonidae. It is common among domestic animals, especially in dogs. This condition does not affect humans.

Definitive diagnosis involves a multitude of tests to remove possible diseases with the same symptoms, such as parainfluenza, herpes virus, canine hepatitis and leptospirosis.

There is no single treatment for canine distemper. The treatment would depend on the symptoms involve and may need antibiotics, nutritional supplements and intravenous fluids.

After two days of exposure, dogs would experience bronchial tonsils and lymph nodes. As it enters the blood around the third day of infection, dogs develop vestibular disease and distemper encephalomyetilis. Around 4 to 8 days, the dog experiences a decrease in white blood cell. Some dogs may experience runny nose, eye discharge and anorexia, while others may not. Fever could begin and stop between the 3rd and 12th day of the disease. Respiratory and gastrointestinal problems may occur around day thirteen, which can lead to secondary bacterial infections. Some dogs suffer from brain or spinal cord inflammation, abdominal lesions and thickening of footpads, which could result to neurological symptoms. Up to 50% of dogs develop meningoencephalitis.