Salmonella virulence gene analysis in poisoning food,slaughtering and commercial samples

VernacularTitle:人食物中毒、屠宰及市售禽肉样品中沙门菌毒力基因结果分析
Author: Liya NIU ; Baohong XU ; Wenhua CAI ; Yan WANG ; Xinying YANG ; Yumei GUO ; Dianxing SUN
Keywords: Salmonella; virulence genes; serotype; poultry food; risk assessment
From: Chinese Journal of Zoonoses 2017;33(7):637-641
CountryChina
Language:Chinese
Abstract: We investigated the carrying status of the virulence genes of Salmonella from different sources in Shijiazhuang City,China,to provide the basic data for the further risk assessment of Salmonella.A total of 186 isolates of Salmonella from different sources were collected and identified serotypes in the area of Shijiazhuang from 2011 to 2016.PCR was performed for eight virulence genes (invA,sopE,agfA,spvR,hilA,stn,pefA,shdA).These Salmonella bacteria were detected in 13 kinds of serotypes.Enteritidis is a significant advantage of the group.The above 8 virulence genes were analyzed,and the virulence genes hilA,stn and invA were the most frequently carried,their respective carrying rate were 90.3％ (168/186),86.6％ (161/186) and 82.8％ (154/186) respectively.We found the virulence genes of Salmonella from different sources were different.It is necessary to take measures to strengthen the food hygiene supervision and prevention and control of the storage and sale of raw poultry stalls in the morning market in Shijiazhuang area.