The term ‘hemorrhagic septicemia’ was first introduced by Snieszko in the year, 1933. This disease is known by various synonyms such as red-mouth disease, infectious dropsy, rubella disease, red-pest and freshwater eel disease. In India, it is known either by the name of infectious dropsy or bacterial hemorrhagic septicemia [1]. Bacterial hemorrhagic septicemia has been described by many investigators [2-7]. Definitive diagnosis of bacterial hemorrhagic septicemia can be made on the basis of external signs and the isolation and identification of the etiological agents [8]. Although motile Aeromonas species are typically recognized as opportunistic pathogens or secondary invaders, cases have been reported of A. hydrophila acting as a primary fish pathogen [9-13]. P. fluorescens was originally described as the causative agent of bacterial hemorrhagic septicemia disease of pond-cultured fish [14,15]. It is considered as a primary pathogen of freshwater fish and opportunistic pathogen for different fish species cultured in marine and brackish waters worldwide [16,17]. Isolation and characterization of P. fluorescens from gills of silver carp (Hypophthalmichthys molitrix), grass carp (Ctenopharyngodon idella), African magur (Clarias gariepinus) and Nile tilapia (Oreochromis niloticus) has also been reported by some workers [18,19]. The present work was, therefore, undertaken to study the etiology, symptoms, causes and treatment of bacterial hemorrhagic septicemia in Cyprinus carpio and Channa striatus.  Read More

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