病毒对对虾的致病性是有条件的,在天然海区和人工养殖场都有与之相应的易感群体,有时多种病毒有着同一种易感虾种。如IHHNV、MBV、HPV和REO等多种病毒的易感群体是斑节对虾,IHHNV和MBV可感染6种对虾,BPV可感染11种对虾之多,而BMV仅侵染日本对虾,对虾个体发育的不同时期,病毒侵害程度差异颇 Virus pathogenic conditions of shrimp are conditional, in the natural sea and artificial farms have a corresponding susceptible groups, and sometimes a variety of viruses have the same kind of susceptible shrimp species. The susceptible population of various viruses such as IHHNV, MBV, HPV and REO were Penaeus monodon, 6 shrimp were infected by IHHNV and MBV, BPV was able to infect as many as 11 shrimp, while BMV was only infected by P. shrimp and individual shrimp Different periods, the extent of the virus quite different