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目的了解佛山市高明区辖区范围内食源性沙门菌在食品中的分布情况及其流行特点。方法按不同季节对辖区内三镇一街的各大农贸市场的动物性食品和植物性食品随机抽样,按GB/T 4789.4-2010对样本进行沙门菌的分离和鉴定,得出的结果按不同食品、不同季节及不同地域进行卡方检验,P<0.05为差异有统计学意义,以统计软件SPSS 19.0作分类统计比较。结果 5类食品中,以生肉中沙门菌的检出率(14.05%)高于其他食品(3.61%),差异有统计学意义(χ2=30.77,P<0.05);辖区内更合镇农贸市场所抽取食品沙门菌检出率(12.87%)高于其他镇街市场所销售的食品(6.73%),差异有统计学意义(χ2=6.45,P<0.05);夏秋季食品中沙门菌检出率(11.30%)高于冬春季(6.29%),差异有统计学意义(χ2=4.72,P<0.05),符合其季节性流行特征。结论沙门菌分布广泛,且检出率较高,应引起重视,为了掌握其动态的流行及分布特征,建议建立沙门菌长期、持续的监测体系。
Objective To understand the distribution and prevalence of food-borne Salmonella in food in the Gaoming District of Foshan City. Methods According to the different seasons, the animal food and plant foods of each big farmer’s market in Sanzhen St. in the area were randomly sampled. According to GB / T 4789.4-2010, the isolation and identification of Salmonella in samples were carried out. The results were different according to different Food, different seasons and different regions for chi-square test, P <0.05 for the difference was statistically significant statistical software SPSS 19.0 for statistical comparison. Results Among the five kinds of food, the detection rate of Salmonella in raw meat was 14.05% higher than that of other foods (3.61%) (χ2 = 30.77, P <0.05) The detection rate of Salmonella in foodstuffs was 12.87%, which was higher than that in other towns (6.73%), the difference was statistically significant (χ2 = 6.45, P <0.05) The rate (11.30%) was higher than that in winter and spring (6.29%), the difference was statistically significant (χ2 = 4.72, P <0.05), which accorded with the seasonal epidemic characteristics. Conclusion Salmonella is widely distributed and the detection rate is relatively high. It is necessary to pay more attention to it. In order to grasp its dynamic epidemiology and distribution characteristics, it is suggested to establish a long-term and continuous monitoring system of Salmonella.