What are the symptoms and treatment options for canine distemper virus (CDV) in dogs?

Canine distemper virus (CDV) in dogs can cause symptoms like fever, coughing, nasal discharge, vomiting, diarrhea, and neurological signs. Treatment options include supportive care, such as fluids and medications to manage symptoms, as well as antiviral drugs and antibiotics to prevent secondary infections. Vaccination is the best way to prevent CDV in dogs.