病毒性暴发病对虾类养殖的危害十分严重。其病原为白斑综合症病毒(White Spot Syndrome BaculovirusWSSV)或称皮下及造血组织坏死杆状病毒(HypodermaiAnd Hematopoietic Necrosis.Baculovirus HHNBV)。在电镜下观察该病毒粒子,横切面为圆形,纵切面为杆状椭圆形,粒子外被双层囊膜结构,完整粒子为450nm×150nm,是一种具双股DNA核酸且无包涵体的杆状病毒。上世纪80年代以来,养虾业已成为我国沿海养殖的支柱性 Viral outbreaks of shrimp farming is very serious harm. The pathogen is White Spot Syndrome Baculovirus WSSV or subcutaneous and hematopoietic necrosis baculovirus (HypodermaiAnd Hematopoietic Necrosis. Baculovirus HHNBV). The virus particles were observed under electron microscope. The cross section was round and the longitudinal section was rod-shaped oval. The outer particle was double-capsule structure. The whole particle was 450nm × 150nm. It was a double-stranded DNA nucleic acid without inclusion bodies Baculovirus. Since the 1980s, shrimp farming has become the backbone of China’s coastal farming