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细菌细菌传染的流行病导致鱼类大批死亡。1968年11月流行病首先发生于美国西部得克萨斯州加尔维斯顿湾,但只局限于鲻类。受感染鱼类的鳃丝上复盖有粘膜状物质,腹腔充满稠状粘液。从两尾死亡鱼体心脏的血液中查有两端极厚和具端圆的多形性杆状体,形如巴斯德氏菌属(Pasteurella)的细菌,用该菌培养的稀释菌液能使所有暴露于水上的鲻鱼及接种过的白鼠致死。
The epidemic of bacterial bacterial infections led to the death of a large number of fish. The epidemic in November 1968 first occurred in Galveston, Texas, in the western United States, but was limited to the same category. Infected fish gill filaments covered with mucosal material, abdominal cavity filled with thick mucus. From the blood of the two dead fish hearts, a pleomorphic rod-shaped body of both ends extremely thick and rounded, as well as bacteria of the genus Pasteurella, was examined. The diluted bacterial liquid Can cause all the exposed fish and vaccinated white mice killed.