Understanding Canine Distemper Virus in English Bulldogs A Realistic, Responsible Guide for Buyers

Canine distemper virus (CDV) is a highly contagious viral disease that affects puppies and dogs of all breeds. While it is serious and sometimes fatal, it is not genetic, not congenital, and not a reflection of breeder quality or care. Distemper is acquired through environmental exposure, typically from contact with infected dogs or contaminated surfaces.

At WB English Bulldogs, we prioritize transparency and education so buyers understand potential risks and responsibilities associated with puppy ownership.

1. What Is Canine Distemper?

Canine distemper is caused by a virus in the Morbillivirus family. It attacks the respiratory, gastrointestinal, and nervous systems of infected dogs. Puppies under six months are most susceptible, particularly if they have not completed their full vaccination series.

The virus spreads through respiratory droplets, bodily fluids, or contaminated objects, making it highly contagious.
(Merck Veterinary Manual; American Veterinary Medical Association)

2. How Puppies Are Exposed

Puppies can be exposed through:

• Contact with infected dogs or wildlife

• Shared environments such as kennels or veterinary clinics

• Contaminated surfaces, water bowls, or equipment

• Unvaccinated dogs or new pets in the household

Even with excellent breeder care, exposure after leaving the breeder’s facility is a normal and unavoidable risk.

3. Common Signs of Distemper

Symptoms vary depending on the severity and organs affected, but may include:

• Fever

• Lethargy

• Loss of appetite

• Nasal or eye discharge

• Coughing or labored breathing

• Vomiting or diarrhea

• Neurological signs in advanced cases, such as seizures or tremors

Early veterinary intervention is critical, as distemper can progress rapidly in unvaccinated puppies.
(Merck Veterinary Manual; VCA Animal Hospitals)

4. Vaccination Is Key, but Not Immediate Protection

• Puppies rely on maternal antibodies for early protection, which fade at different rates.

• Vaccines reduce risk but do not provide immediate or absolute immunity.

• A puppy may appear healthy at placement but remain vulnerable to infection for a short period.

5. Distemper Is Environmental, Not Genetic

• Canine distemper is not inherited and is not caused by poor breeding or care.

• Even in the healthiest, most carefully managed litters, a puppy can be exposed and develop the virus after leaving the breeder.

• Veterinary literature classifies distemper as an environmental infectious disease, not a congenital condition.
  (Merck Veterinary Manual; AVMA)

6. Why Distemper Is Not Covered Under Our Health Warranty

WB English Bulldogs’ one-year health warranty excludes environmental infectious diseases because:

• Exposure can occur after placement

• Risk is influenced by environmental factors beyond the breeder’s control

• Vaccination timing and maternal antibodies affect susceptibility

• Distemper is not congenital or hereditary

Owners are responsible for prompt veterinary care, vaccination completion, and environmental precautions.

7. Responsible Ownership and Prevention

We strongly encourage owners to:

• Complete the full distemper vaccination series as recommended by their veterinarian

• Avoid contact with unvaccinated or unknown dogs

• Maintain clean environments and hygiene practices

• Seek immediate veterinary attention if symptoms develop

With proper vaccination and care, puppies are very likely to remain healthy.

8. Setting Proper Expectations

As professional English Bulldog breeders since 1998, WB English Bulldogs is committed to producing healthy puppies and educating families about real-world risks.

Canine distemper is a well-documented, contagious viral disease, not a reflection of breeder quality. Education, vaccination, and responsible care are the best ways to protect puppies after placement.

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Sources & Professional References

Merck Veterinary Manual
American Veterinary Medical Association (AVMA)
VCA Animal Hospitals
American Kennel Club (AKC)