State health officials say dog flu has arrived in Oregon, posing a serious threat to pets at shelters and kennels.
A blood sample from an Oregon dog tested positive for the virus yesterday at a veterinary lab at Cornell University, where researchers first discovered the canine flu.
The Cornell lab announced this week in the journal Science that the virus had jumped from horses to dogs.
Oregon veterinarians say dog owners in Oregon should be alert for the symptoms of dog flu, which is difficult to tell apart from a more common respiratory illness called kennel cough.
Dog flu is caused by a virus that does not have any treatment yet, while kennel cough is caused by bacteria and can be treated with antibiotics.