It's not common but yes, another "flu" we have to worry about. From the LA Times:
ozens of dogs are being treated at an Oceanside kennel after contracting San Diego County's first documented cases of dog flu.Sixty-four dogs are believed to have been infected with the virus at the nonprofit Canine Companions for Independence in Oceanside, which trains the animals to become aides for disabled people.
Symptoms include sneezing, coughing, runny noses and mild fever. Symptoms can last 10 to 21 days.