Flavobacteria as secondary pathogens in carp suffering from koi sleepy disease

• DOI: 10.1111/jfd.12872
• Publication Date: 2018-08-02T05:31:30Z
• Authors: Mikolaj Adamek; Felix Teitge; Verena Jung‐Schroers; Max Heling; David Gela; Veronika Piackova; Martin Kocour; Dieter Steinhagen
• Keywords: Gills; 0301 basic medicine; Hungary; Carps; Coinfection; Poxviridae; Poxviridae Infections; Flavobacterium; 3. Good health; Fish Diseases; 03 medical and health sciences; Flavobacteriaceae Infections; Germany; Animals

Koi sleepy disease (KSD) is a with increasing importance in global common carp aquaculture. Despite the fact that edema virus (CEV) most likely causative agent of KSD, often presents itself as multifactorial several parasites and bacteria species present on gills, skin or internal organs. Therefore, this study, we analysed presented initial results an interaction flavobacteria CEV development clinical KSD suffering from proliferative gill disease. We examined selected field samples Germany Hungary confirmed presence co-infections subset samples. In infection experiments, studied transfer dynamics both infections. Furthermore, which Flavobacterium could be isolated KSD-affected fish concluded branchiophilum possible copathogen. Antibiotic treatment experiments showed seems to primary pathogen causing insult gills by these enabling other pathogens, including F. branchiophilum, establish co-infections. co-infection not required for it contribute pathological changes recorded during outbreaks.