Canine Influenza Virus is more commonly called the dog flu or H3N8 canine flu, and it is a viral infection that spread from horses to dogs with the first case of it being diagnosed in 2004. It gives dogs much of the same symptoms that the flu will for humans, and in the same way, it is not usually a more serious health risk or cause of death.

The virus is spread by respiratory secretions and can survive on surfaces for up to 48 hours. Many of the symptoms will be the same as a respiratory infection like kennel cough for dogs, and it is possible that CIV can progress into pneumonia for dogs with weakened immune system function.

Canine Influenza Virus Symptoms

A persistent cough that is resistant to suppressive therapy is the most prominent of canine influenza virus symptoms. A runny nose and sneezing are also common as dog flu symptoms, and owners may also see their dogs be lethargic and/or in some pain. Symptoms are usually mild with these viral infections, but for some dogs, they may be worse. This is true for dogs that are brachycephalic (flat-faced) breeds like Boxers, Pugs, and Pekingese. They are at greater risk for CIV and may have worse symptoms when they get the dog flu.

Signs of Canine Influenza Virus

Ocular (eye) discharge, fever, or anorexia can also be possible as signs of canine influenza virus. Provided they receive treatment, most dog owners can expect to see their dog have symptoms subside within 2 to 3 weeks, and it will be best to monitor their temperature during this time to make sure they are not running a high fever at any time.

How to Treat Canine Influenza Virus

The focus is more on supportive care with dog flu treatment, and especially considering most animals will overcome the virus within a few weeks. For a severe flu, a veterinarian may prescribe a pet antiviral medication like Oseltamivir, but for milder cases, the only Rx medication needs may be for an NSAID for pain and sinus inflammation relief. An antibiotic for dogs may be prescribed to prevent secondary infections that can occur alongside canine influenza virus.