All about cats

What causes bronchitis in cats

There are many factors that cause bronchitis in cats. But the most common causes are viruses, bacteria and their toxins, and hypersensitivity reactions.

Most bronchitis diseases are caused by viruses and bacteria. Viral and bacterial bronchitis is usually caused by a virus that is commonly referred to as a lower respiratory infection (LRI).

Bacteria causes a bronchitis disease that is not usually as severe as viral bronchitis.

Bacterial bronchitis is more common in cats that are neutered.

Hypersensitivity reactions cause bronchitis in cats when the cat is exposed to multiple irritants or allergens.

Vaccines are the most common cause of bronchitis in cats. Some cats develop bronchitis after receiving vaccinations and vaccination boosters.

Other infections that cause bronchitis in cats are:



Inflammatory diseases

Fungal infections



Bronchitis can also be caused by bacteria that live in inhospitable environments. These bacteria usually live in the lungs, but they can be found in other parts of the body.

Symptoms and Types

The symptoms of bronchitis in cats are generally the same as bronchitis in human beings.

The cat may have a runny nose, cough and fever. There may also be a decrease in the amount of saliva produced by the cat.

The cough may also be accompanied by wheezing and a reduced ability to speak or eat.

The cat may also have a red or inflamed eye.


A veterinary doctor will perform a physical examination and collect a sample of the cat’s nasal secretions.

A chest X-ray is performed to determine whether the cat has pneumonia.

A sample of the cat’s urine may be collected and sent to a lab for testing.


Treatment for bronchitis in cats is dependent on the underlying cause.

Viral bronchitis is treated with antibiotics.

Bacterial bronchitis is treated with antibiotics.

Hypersensitivity reactions are treated with steroids.

Vaccines are often the cause of bronchitis in cats. Usually, the bronchitis is mild, but the cat may require antibiotics if the bronchitis is severe.

The cat’s diet should be changed to prevent further complications.

Home Care

The cat’s owner should advise the doctor of any respiratory conditions, such as asthma or bronchitis, that the cat has.

The cat’s owner should avoid the cat from going outside for at least a week after the bronchitis has been diagnosed.

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