Canine distemper is a contagious and serious disease caused by a virus. The virus attacks the respiratory, gastrointestinal, ...

All dogs can become infected with distemper, but “unvaccinated dogs and puppies under 4 months old are particularly ...

All dogs can become infected with distemper, but “unvaccinated dogs and puppies under 4 months old are particularly susceptible,” the American Kennel Club writes. Symptoms include fever ...