Kennel cough

What is it?

Kennel cough is a highly contagious respiratory infection that mainly affects dogs living in communities. It causes inflammation of the upper respiratory tract, leading to a characteristic cough. It usually heals well but can get worse in puppies or fragile dogs.

Commonly observed signs

These signs are neither exhaustive nor specific. Only a veterinarian can establish a diagnosis.

Causes and risk factors

This disease often results from a combination of several infectious agents, including viruses and bacteria such as Bordetella bronchiseptica. The combination of several agents makes the infection more contagious and sometimes more severe.

Dogs living in communities, such as in boarding houses, shelters or exhibitions, are particularly exposed. Puppies, elderly or immunocompromised dogs, as well as those exposed to stress or a poorly ventilated environment, are at increased risk.

Transmission

The disease is mainly transmitted through the air, via respiratory droplets emitted when coughing or sneezing. Close contact between dogs, particularly in kennels, boarding facilities or exhibitions, promotes its rapid spread.

Diagnosis and care

Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.

Prevention

References

MSD Veterinary Manual

Content reviewed by the TunisieVet editorial team · Updated 18 August 2026