舟山市市售海虾中创伤弧菌的定量检测分析

Quantitative detection and analysis of Vibrio vulnificus in sea shrimp in Zhoushan

目的:为了解海虾中创伤弧菌的污染状况及其季节性变化规律。方法:从舟山市区的三大菜场采集市售的114份海虾样品进行创伤弧菌的定性及定量分析。结果:114份样品,共检出24株创伤弧菌,总体阳性率为21.1%。2月份和5月份检出率相对较低,为3.6%和7.7%;8月份的检出率为56.7%,11月份的检出率为13.3%。四个季度的检出率差别有统计学意义(χ2=31.91,P<0.01)。结论:创伤弧菌在一年四季都存在着潜在的危险,而在夏季被感染的机率明显上升。

Objective：To understand the Vibrio vulnificus pollution in sea shrimp and its seasonal variation.Methods： 114 sea shrimp samples were collected for qualitative and quantitative analysis of Vibrio vulnificus from three major food markets in Zhoushan.Results： There were 24 strains of Vibrio vulnificus in 114 samples,the total positive rate was 21.1%.Detection rates were relatively low in February and May,which were 3.6% and 7.7% respectively;Detection rates were 56.7% and 13.3% in August and November respectively.The difference of the detection rates in four quarters has statistical significance（χ2=31.91,P0.01）.Conclusion：There is a potential risk about Vibrio vulnificus in four seasons of a year.And in summer,the rate of infection rised obviously.