Canine influenza was around as early as 1999

The canine influenza virus, first identified in 2004, had been circulating in the greyhound population for at least five years prior to its discovery and may have been responsible for numerous outbreaks of respiratory disease among dogs at racing tracks during that period, according to research presented today (March 18) at the 2008 International Conference on Emerging Infectious Diseases in Atlanta, Georgia.