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目的了解霍乱弧菌在不同水产品及其流通环节中的污染情况,为制定霍乱预防控制措施提供依据。方法 2005年7—9月在全国12个省、自治区、直辖市对不同种类水产品样本进行调查和霍乱弧菌的检测。结果共调查检测海、水产品样本12 104份,霍乱弧菌总阳性检出率为0.52%。各类样本以甲鱼阳性率(1.72%)最高,其次为养殖水(1.14%)、蛙类(0.50%),贝类最低(0.08%)。检测61株霍乱弧菌菌株47.54%为产毒株,且79.31%分离自甲鱼和养殖水。甲鱼在多环节的阳性率均较高,以养殖环节阳性率最高(2.38%)。结论我国12省(自治区、直辖市)水产品及其流通环节霍乱弧菌污染总体处于较低水平,甲鱼卫生管理问题应受到高度重视。
Objective To understand the pollution of Vibrio cholerae in different aquatic products and their circulation and provide the basis for the development of prevention and control measures for cholera. Methods From July to September 2005, samples of different aquatic products were investigated in 12 provinces, autonomous regions and municipalities directly under the Central Government and the detection of Vibrio cholerae. Results A total of 12 104 samples of sea and fishery products were investigated. The total positive detection rate of Vibrio cholera was 0.52%. The highest positive rate was 1.72% for all kinds of samples, followed by aquaculture water (1.14%), frogs (0.50%) and shellfish the lowest (0.08%). Of the 61 V. cholerae strains tested, 47.54% were toxin-producing strains, and 79.31% were isolated from turtles and farming water. The positive rate of turtle in many links were higher, the highest positive rate in breeding (2.38%). Conclusion The overall level of Vibrio cholerae contamination in aquatic products and its circulation in 12 provinces (autonomous regions and municipalities directly under the Central Government) in our country is at a low level, and the hygienic management of turtle should be given high priority.