The present document discloses a new species of Bizionia, herein denoted Bizionia piscinecroseptica and a reference strain of this bacterium denoted Bizionia sp.130524K2F7 which has been deposited at the National Collection of Industrial and Marine Bacteria and has been assigned accession number NCIMB 42183. Further disclosed is the medical use of bacteria of the genus Bizionia for vaccinating fish against a new disease identified and herein denoted bizioniosis.
