Canine influenza is a newly emerging infectious disease caused by a “flu” virus. While 30 states have currently reported cases (including New Hampshire), it originated in Florida where it is now considered endemic (well established) in the state.

Humans cannot contract influenza from their pets. This is not H1N1.

Canine influenza is spread via respiratory secretions and contaminated objects. Because this is a newly emerging virus, dogs have not yet developed any natural immunity regardless of their breed or age. ALL dogs are susceptible. 80% of exposed dogs will develop clinical signs, most of which are consistent with a mild upper respiratory infection usually accompanied by a persistent cough. However, a smaller proportion can progress to the severe form of the illness, resulting in a high-grade fever, pneumonia, and respiratory compromise.

Unless a secondary bacterial infection develops, treatment is largely supportive with good hygiene and proper nutrition. Most dogs will recover within 2-3 weeks and should be isolated from other dogs during this period.

In May 2009, the USDA approved the first influenza vaccine for dogs. It was developed to aid in the control of the disease and may not completely prevent infection. It does however reduce the severity and duration of clinical signs, as well as decrease viral shedding and subsequent spreading to other dogs.

This is a “lifestyle” vaccine and not currently recommended for every dog. Since not endemic to this area, we recommend this vaccine only to those dogs in higher risk situations (e.g. kennels, dog shows), or those traveling to endemic areas.

Many of our clients choose to forego our wonderful New England winters and travel southward to sunny Florida. Those clients should consider vaccinating your dogs prior to travel, or contacting a veterinarian immediately upon arrival at your winter home.

If you have any questions regarding canine influenza or to discuss whether your dog’s lifestyle increases the risk of exposure to the virus, please do not hesitate to contact us. We can help you determine whether or not the canine influenza vaccine is appropriate and safe for your pet.

You may also visit www.doginfluenza.com for additional information.