Vol. 10, Special Issue 11 (2021)

Author(s):
Manimozhi E, Porkodi M, Pency Martina and Zahoor Mushtaq

Abstract:
Shrimps are the most widely traded commodity among crustaceans globally. Intensification and diversification of culture practice increase the stress and susceptibility to new pathogens, affecting the sustainability of shrimp farming. Decapod Iridescent Virus (DIV1) is a nucleocytoplasmic double-stranded virus that belongs to the genus Decapodiridovirus and the Iridoviridae family that has been reported from farmed and wild captured crustaceans in China and Thailand. Clinical signs including colour fading and atrophy of the hepatopancreas and an empty gut has been observed. It is extremely likely to have a huge impact on shrimp farming since the cumulative mortality of up to 80% was recorded. Research on DIV1 is centred on viral entry, pathogenesis, epidemiology, and molecular diagnostics. Currently, DIV1 is also included as “an OIE listed pathogen” (OIE., 2021). This review will provide an overview of aetiology, genome, susceptible species, diagnostic methods, and current progress on the DIV1.