Canine distemper virus often causes fatal respiratory infections in dogs.

• A. True
• B. False
• C. Sometimes
• D. Not sure

Answer: (A)

Canine distemper virus commonly targets the respiratory tract and can progress to severe pneumonia, which is a frequent cause of death in affected dogs, especially unvaccinated puppies. While distemper is a systemic disease that can also involve the gastrointestinal and nervous systems, the respiratory component is a common and dangerous aspect of the illness. Because of this, the statement that the virus often causes fatal respiratory infections is true. Vaccination and supportive care reduce severity and mortality.