Cat Feline Herpesvirus Welfare Management

Feline herpesvirus (FHV-1) is one of the most common infectious diseases of cats, causing upper respiratory infection and chronic recurring eye and nose disease. Managing a cat with chronic herpesvirus requires ongoing welfare attention.

Key Facts

Feline herpesvirus infects the majority of cats at some point in their lives, often in the first weeks
After initial infection, the virus remains latent in nerve tissue and can reactivate during periods of stress
Reactivation causes sneezing, nasal discharge, eye inflammation (conjunctivitis), and corneal ulceration
Recurrent corneal ulcers can cause permanent scarring and vision impairment in severely affected cats
Antiviral eye drops (idoxuridine, cidofovir) are effective treatments for active ocular herpesvirus
L-lysine supplementation was historically recommended to suppress herpesvirus reactivation but evidence is weak
Minimising stress is the most effective management strategy for reducing reactivation frequency
Cats with chronic herpesvirus benefit from stable routines, low-stress environments, and good nutrition

Welfare Considerations

Chronic herpesvirus causes recurring periods of discomfort and ocular pain that can last throughout a cat's life. The welfare burden is highest during flare-ups causing corneal ulceration, which is genuinely painful. Identifying and minimising stress triggers reduces reactivation frequency and the associated suffering. Owners of herpesvirus-positive cats who understand the condition are better placed to seek prompt treatment during flare-ups and manage the environment to reduce stress.

What You Can Do

Seek veterinary attention promptly at the first signs of eye inflammation or corneal clouding in your cat
Minimise stress in your cat's environment - stable routines, hiding places, and low-conflict social groups
Ask your vet about antiviral eye drops for active herpesvirus flare-ups affecting the eyes
Ensure herpesvirus-positive cats are fully vaccinated to reduce secondary bacterial infection risk