What is Canine Influenza? "Canine influenza (CI), or dog flu, is a highly contagious infection caused by an influenza A virus. The causative canine influenza virus (CIV) strains have been classified as H3N8 and H3N2 . . ."(AVMA). As a conscientious dog owner, and a participant in dog shows, I thought it would be vital … Continue reading What is Canine Canine Influenza?