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Canine Distemper: Symptoms, Treatment and Prevention

Canine Distemper: Symptoms, Treatment and Prevention
Disease Guide 2026-07-23 PetPedia Editorial

What Is Canine Distemper?

Distemper is a highly contagious viral disease affecting dogs' respiratory, gastrointestinal, and nervous systems. It spreads through airborne droplets and shared surfaces.

Early Symptoms

  • Nasal and eye discharge
  • Fever, lethargy, and loss of appetite
  • Coughing and difficulty breathing
  • Vomiting and diarrhea

Later Signs

As the virus reaches the nervous system, dogs may develop twitching, seizures, coordination loss, and hardened paw pads—a hallmark sign.

Diagnosis and Treatment

There is no cure; treatment is supportive—fluids, nutrition, antibiotics for secondary infection, and seizure control. Survival depends on how early care begins and the dog's age.

Prevention Is Key

The core DHPP vaccine protects against distemper and is given to puppies in a series and boosted regularly. Unvaccinated puppies and shelter dogs are most vulnerable.

Risk Environments

Dog parks, shelters, and boarding facilities raise exposure risk. Keep vaccinations current before social activities.

Prognosis

Even with treatment, nervous-system damage can be permanent. Prevention through vaccination remains the only reliable defense.

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