Ask a Vet: All breeds, ages of dogs susceptible to dog flu

I heard a veterinarian on the radio talking about the dog flu and that there is a vaccine available for it. What is the dog flu? How do I know if my dog should be vaccinated against it and is it something that my cat can catch? That's a great question and a very important one. Canine Influenza (the dog flu) is a virus that was first seen in greyhounds that mutated from the equine flu virus. It ...