RNA viral diseases of finfish: A Review

Infectious diseases are associated with the most devastating problem in aquaculture sectors. In comparison to terrestrial farm animals and plants, aquatic animals require more attention in order to monitor and manage their health. Both farmed and wild fish are most susceptible to the various viral pathogens. Regrettably, viral diseases are more difficult to control due to lack of knowledge about pathogenesis and natural resistance to viral infections. Particularly, intensive aquaculture has brought more disease problems which leading to great economic losses. The outbreaks of both DNA and RNA viral disease are associated with significant losses of cultured and wild fish populations. In general, RNA viruses by far cause severe diseases in fish aquaculture and hence become economically important universally. RNA viruses including birnavirus, nodavirus, orthomyxovirus, rhabdovirus, reovirus, paramixovirus, retrovirus, coronavirus, togavirus, picornavirus etc. those are infectious for culture and wild fishes. The present review was built on RNA virus diseases affecting finfishes are menacing to the sustainable growth of aquaculture.