Canine Distemper is a highly contagious viral disease that affects dogs and some other animals, such as foxes and raccoons. It is caused by the canine distemper virus (CDV), which attacks the respiratory, gastrointestinal, and nervous systems. Symptoms can include fever, coughing, vomiting, diarrhea, and seizures. Vaccination is the most effective way to prevent Canine Distemper. Puppies typically receive their first vaccine at around six to eight weeks of age, followed by booster shots. Early detection and supportive care can improve the chances of recovery, but the disease can be fatal, especially in unvaccinated dogs.