The H3N8 virus (canine influenza) is a good example of how an equine virus mutated and began to affect dogs
. But, some of our companion animals, like ferrets, are more susceptible to the Type A influenza viruses. So, it was no surprise to most veterinarians when the ferrets mentioned above tested positive. The same fact is true of birds, but we have only seen H1N1 show up in turkeys to date.
Of course, we are all well aware that the virus can be transmitted to hogs.