Just like humans, dogs are susceptible to diseases and illnesses. One virus that is affecting dogs is the Canine Influenza Virus, or dog flu. This virus, H3N2, affects dogs and some cats and is thought to have come from an avian flu mutated strain in Southeast Asia.
Veterinarians are warning Philadelphians to keep a close eye on pets for any signs of fever, lethargy, decreased appetite, ocular discharge, and coughing. But there are ways to prevent and treat animals experiencing flu-like symptoms. There is a vaccine that has been proven affective against the H3N8 variation of the virus, and areas that have a high density of dogs like dog parks, doggy day-care or kennels where there has been recent illness should be avoided.