that flu has been around dogs for over 5 years now, and every so often the media picks it up and revives it again. Although I have to wonder if Schering-Plough paid for the story since so many vets are refusing to use the flu vaccination, including my vet. Provisional vaccinations aren't something he's really fond of.
FWIW, the place dogs are most likely to contract something contagious wasn't even mentioned (unless I missed it, I just sort of skimmed the story), and that's the groomers! Not all groomers thoroughly disinfect the drying cages, bathtubs, and grooming tables in between dogs, although of course some do.