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分析了连云港地区发生的三例主要淡水养殖鱼类暴发性流行病 :第一例由于水源性病原体感染而引起 ;第二例为铒料性病原体侵入而产生 ;第三例则发生于盐度为 0 .5 %的咸淡水水域 ,且为全年水温最低的 1月份。从而得出该病传播的两种途径 :经水传播和经饵料传播 ,且比以往报道流行范围扩大了 :能发生于咸淡水水域、更低水温 (6～ 7℃ )及更长的流行季节 (终年可见 )。针对这种新情况 ,提出了防范措施
Three outbreaks of predatory fish epidemic in freshwater aquaculture were analyzed in Lianyungang: the first was caused by an infection with a water-borne pathogen; the second was caused by the intrusion of a bait-borne pathogen; and the third was when the salinity was 0 .5% of the brackish freshwater waters, and for the year the lowest water temperature in January. Thus, two routes of transmission of the disease were found: waterborne and food-borne, and more widespread than previously reported: can occur in brackish freshwater waters, lower water temperatures (6-7 ° C) and longer prevalence seasons (Visible throughout the year). Against this new situation, put forward preventive measures