White Spot Syndrome Virus (WSSV)

White spot syndrome virus (WSSV) is a highly infectious viral pathogen which causes mass mortality worldwide. White spot syndrome virus (WSSV) is a major shrimp pathogen causing large economic losses, and the pathogen found in different penaeid shrimp species including P. monodon, P. japonicus and L. vannamei.

Clinical Signs : High mortality, Development of white spots on the exoskeleton, Lethargy, Sudden reduction in feeding, Red discoloration of body and appendages and a loose carapace

Mode of transmission : cannibalism, water-borne routes, moribund animals

Mortality : Cumulative mortality of up to 100% within 3 – 7 days after infection