I saw this article on dog flu (Canine Influenza) and thought I would share a few thoughts:
Canine Influenza seems to be more common in the northeast United States. Dogs coming from the northeast to dog shows in the southeast, where we are, carry the virus. We recommend a canine influenza vaccine for all dogs showing or going to dog shows. Since the vaccine only lessens the symptoms of the disease rather than prevent the symptoms, we only recommend the vaccine for dogs at a high risk of exposure.