目前已发现20多种感染贝类的病毒,其中几种已被证实可导致养殖贝类流行性疾病和大量死亡。人工养殖贝类个体密度较高,为病毒传播提供条件,因此贝类病毒研究越来越引起人们的重视。一、贝类病毒的主要特征已发现的贝类病毒隶属于多个科,形态多以二十面体对称为主。大多数贝类病 More than 20 viruses have been found in shellfish, several of which have been shown to cause epidemics and large numbers of deaths in shellfish. The higher density of cultured shellfish provides the conditions for virus transmission, so more and more attention has been paid to shellfish virus. First, the main features of the shellfish virus Shellfish viruses have been found under the division of many families, mostly icosahedral symmetry-based. Most shellfish disease