What is Distemper in Dogs?

Canine distemper is a highly contagious, incurable, often fatal, multisystemic viral disease that affects the respiratory, gastrointestinal, and central nervous systems. It is caused by the canine distemper virus (CDV). Distemper is completely preventable with veterinarian vaccinations every few years. Unvaccinated dogs can contract the disease from various forms of mammals, wild and domestic.