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在福州地区分离到一种高致病性的白斑病病毒 ,该病毒致病性强 ,可感染不同品种、不同生长期和不同形体大小的个体 .引发的病害潜育期短、病程短、死亡率高 .病害覆盖面积广 ,发病时间大多集中在 6月和 9月 ,其中以 6月中下旬最为集中 .以长毛对虾为对象测定温度与侵染性关系 ,结果表明 ,高温可促进发病 ,低温可延缓发病并延长病程 ;在长毛对虾生长的适温范围 (8～ 32℃ )内 ,病毒均可侵染并造成寄主发病 .病毒的感染途径主要是经口感染 ,通过摄食饵料和携带病原的病弱个体等方式传播 ,正常情况下 ,不会经水传播 .
In Fuzhou area, a highly virulent white spot virus was isolated, which was highly pathogenic and could infect individuals of different varieties, different growth stages and different body sizes. The disease caused by the disease had short latent period, short course of disease and death The disease cover a wide area, the onset time mostly concentrated in June and September, of which the most concentrated in the middle and late June.White hair shrimp as the object to determine the relationship between temperature and infectivity, the results show that high temperature can promote the incidence, Low temperature can delay the onset of disease and prolong the course of the disease.During the suitable temperature range (8 ~ 32 ℃) for growth of Penaeus chinensis, the virus can infect and cause the host to infect.The pathogen of virus infection is mainly oral infection, Pathogen of the sick and weak individuals spread, under normal circumstances, will not spread by water.