General Information: Flavobacterium branchiophilum strain FL-15 has been isolated from a diseased sheatfish (Silurus glanis) in Hungary Members of the genus Flavobacterium occur in a variety of ecological niches and represent an interesting diversity of life styles. Flavobacterium branchiophilum is the main causative agent of bacterial gill disease, a severe condition affecting various cultured freshwater fish species worldwide, in particular salmonids in Canada and Japan.