Companion Animals

Cat Infectious Tracheobronchitis and Upper Respiratory Infections

Upper respiratory infections are among the most common illnesses in cats, especially in shelter and multi-cat environments.

Key Facts

Feline herpesvirus and calicivirus cause most cat URIs
Shelter cats are at highest risk due to stress and close contact
Signs include sneezing, nasal discharge, eye ulcers, and mouth ulcers
Most healthy cats recover with supportive care in 7 to 14 days
Vaccination reduces severity but does not fully prevent infection

Welfare Considerations

Cats with URI experience discomfort, difficulty breathing through nasal congestion, pain from oral or ocular ulcers, and anorexia. Shelters that reduce overcrowding, improve ventilation, and implement early treatment protocols substantially reduce the welfare burden of URI.

What You Can Do

Vaccinate cats against herpesvirus and calicivirus
Isolate new cats before introducing them to a household
Support shelters that use evidence-based URI management protocols
Provide steam or humidified air to help congested cats breathe easier
Seek veterinary care promptly if URI symptoms are severe or prolonged