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１９９３年养殖的中国对虾（Ｐｅｎａｅｕｓｃｈｉｎｅｎｓｉｓ）发生了暴发性流行病，经人工感染和电镜观察，证实是由杆状病毒引起的。病虾活力差，体色暗淡或微红，头胸甲上有浅黄色至白色的斑点，头胸甲与表皮不粘连，容易剥离，血淋巴混浊，淋巴器官和肝胰腺肿大、糜烂。在肝胰腺、淋巴器官、中肠、皮下组织和鳃等组织细胞的核内均发现有大量病毒粒子。病毒粒子杆状，无包涵体，具囊膜，平均长３５０ｎｍ，宽１５０ｎｍ，核衣壳长３００ｎｍ，宽１００ｎｍ。暂将这种病毒定名为中国对虾杆状病毒（Ｐｅｎａｅｕｓｃｈｉｎｅｎｓｉｓｂａｃｕｌｏｖｉｒｕｓ，简称ＰＣＢＶ）。
An outbreak pandemic occurred in Penaeus chinensis farmed in 1993 and was confirmed by the baculovirus infection by human infection and electron microscopy. Shrimp shrimp poor activity, body color dim or reddish, the head and chest armor has a light yellow to white spots, head and thoracic and epidermis is not adhesion, easy to peel, hemolytic turbidity, lymphatic organs and hepatomegaly swelling, erosion. In the liver and pancreas, lymphoid organs, midgut, subcutaneous tissue and gill and other tissue cells in the nucleus were found in a large number of virions. Virus particle rod-like, non-inclusion bodies, with capsule, with an average length of 350nm, width 150nm, nucleocapsid length 300nm, width 100nm. Temporarily put this virus as the Chinese shrimp baculovirus (Penaeuschinensisbaculovirus, referred to as PCBV).