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国家食源性疾病监测网发现 ,我国近年来副溶血性弧菌中毒呈显著上升趋势。为进一步了解零售海产品中副溶血性弧菌 (VP)的污染情况 ,2 0 0 3年 9～ 12月在我国沿海 4个省份 (浙江、江苏、广东、福建 )进行监测 ,试样分别从水产品批发市场、零售市场和饭店采集 ,共采集海产品 2 36份 ,其中甲壳类 6 9份、贝类 116份、鱼类 5 1份。采用Vitek鉴定系统和最可能数 (MPN)法进行副溶血性弧菌的定性和定量分析。结果显示 ,38 6 %的海产品检出VP ,浙江省试样的VP阳性率最高。甲壳类、贝类和鱼类试样VP阳性率分别为 4 9 3%、37 9%和 2 5 5 % ;阳性试样几何平均分布浓度依次为 171 4、76 9和 5 0 7MPN 10 0g。监测结果表明 ,我国零售海产品中副溶血性弧菌的污染率较高 ,必须持续地进行食品中VP的主动监测和污染控制。
National foodborne disease surveillance network found that in recent years, Vibrio parahaemolyticus poisoning showed a significant upward trend. To further understand the pollution of Vibrio parahaemolyticus (VP) in retail seafood, monitoring was carried out in 4 provinces (Zhejiang, Jiangsu, Guangdong and Fujian) in China’s coastal areas from September to December 2003. The samples were collected from The aquatic products wholesale market, retail market and restaurants were collected. A total of 236 seafood products were collected, of which 69 were crustaceans, 116 were shellfish and 51 were fish. Qualitative and quantitative analysis of V. parahaemolyticus was performed using the Vitek identification system and the MPN method. The results showed that 38 6% of seafood samples detected VP, Zhejiang Province, the highest sample VP positive rate. The positive rates of VP of crustaceans, shellfish and fish samples were 49.3%, 37.9% and 25.5%, respectively. The average geometric distributions of positive samples were 171 4,76 9 and 507MPN 10 0g. The monitoring results show that the pollution rate of Vibrio parahaemolyticus in China’s retail seafood is high, and the active monitoring and pollution control of VP in food must be continuously carried out.