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目的:了解市售贝(甲)壳类海产品中致病性气单胞菌的携带与消长情况,为控制气单胞菌病提供科学依据。方法:采用分步筛选的方法筛检出贝(甲)壳类海产品中疑似致病性气单胞菌,再用系统生化确定种类;按季对贝(甲)壳类海产品进行致病性气单胞菌检测,观察其消长。结果从13类2431份市售贝(甲)壳类海产品中检出致病性气单胞菌8种1490株,检出率为61.29%。检出的致病性气单胞菌以嗜水气单胞菌数量最多;海产品带菌率最高为海瓜子,牡蛎、淡菜、海螺3类海产品检出的致病性气单胞菌种类和数量相对较少;有350份样品同时检出2种以上致病性气单胞菌。结论:市售新鲜贝(甲)壳类海产品中携带致病性气单胞菌较普遍,贝壳类的致病性气单胞菌携带率高于甲壳类,夏、秋季是检出高峰,消长规律与疾病的流行相吻合。提示我们,市售新鲜贝(甲)壳类海产品是一类诱发气单胞菌疾病的危险因子,而本地居民对该海产品的食用习惯多为生食或半生食,进一步增加了食用不安全性。因此,建议食用时应注意烹饪方法,以减少气单胞菌病的发生。
Objective: To understand the carriage and decline of pathogenic Aeromonas bacteria in commercially available shellfish shellfish (A), and to provide a scientific basis for the control of Aeromonas. Methods: The pathogenic Aeromonas caviae was screened by the step-by-step screening method, and then the biochemical parameters were determined by the system biochemical method. The disease of shellfish (shellfish) Aeromonas detection, observation of its growth and decline. Results A total of 1490 strains of 8 kinds and 8 strains of Aeromonas sobria were detected from 2431 shellfish shellfish in 13 categories. The detection rate was 61.29%. The number of Aeromonas hydrophila strains detected was the largest, while that of Aeromonas sobria was the highest among the three strains of sea cucumber, oyster, mussel and conch And the number is relatively small; 350 samples were detected simultaneously more than two kinds of pathogenic Aeromonas. CONCLUSIONS: Commercially available fresh shellfish (A) shellfish is more commonly carried by pathogenic Aeromonas spp. The carriage rate of shellfish is higher than that of crustaceans, and the peak is detected in summer and autumn. The law of growth and decline coincides with the prevalence of the disease. As a reminder, the market price of fresh shellfish (shellfish) on the market is a risk factor for Aeromonas sobria (ALI) disease. However, local residents often use raw or semi-raw food for the seafood, which further increases the risk of food insecurity Sex. Therefore, we recommend eating should pay attention to cooking methods to reduce the occurrence of aeromonas disease.