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In cats, chronic viral nasal disease develops from one of two viruses involved in upper-respiratory tract diseases. Both the feline rhinotracheitis virus (FVR) and feline calici virus (FCV) are extremely contagious. Clinically, the difference between these two viruses is unnecessary for diagnosis and treatment.
Symptoms and Causes
The typical signs associated with chronic viral disease include sneezing, bilateral nasal discharge, nasal bleeding, increased breathing sounds, and discharge from the eyes. Any bleeding associated with viral disease is usually very minimal; however, if nasal bleeding becomes extreme, it may be suggestive of a tumor.
Nasal discharge from one side of the nose is more typical of a foreign body, tumor, or tooth-root abscess. Moderate to severe bleeding or deformity of the facial bones suggests an erosive process, such as cancer fungal or a foreign body.
To differentiate chronic viral nasal disease from other causes of feline upper-respiratory disease, you must know the past health of the cat. Any previous signs of acute infection would be expected with viral disease. An old injury or prior trauma might have healed externally but resulted in deep bone damage or changes in the nasal anatomy which can lead a patient to be predisposed to nasal disease.
A cat with chronic viral nasal disease is generally in good condition. Chronic viral nasal disease can be diagnosed only by the elimination of other upper respiratory conditions, such as cancer, foreign bodies, bacterial disease, allergic disease, fungal disease, polyps, dental disease, and prior trauma. Not only will this guide your veterinarian in the proper course of treatment, but will also give you an accurate prognosis. If the diagnosis becomes chronic viral nasal disease, you may expect a long-term treatment or potentially negative results.