Dog Flu Outbreak 2024. The dog flu strain h3n2 is now circulating in more than two dozen u.s. In florida, tampa bay area animal rescues are scrambling as they face a massive outbreak of canine influenza (aka dog flu), a highly contagious respiratory illness.

Dog flu, or canine influenza virus, is an infectious respiratory disease caused by an influenza a virus, similar to the viral strains that cause. Canine influenza (sometimes called dog flu) is a highly contagious respiratory disease caused by two type a influenza viruses known to infect dogs.