Analysis of the characteristics of Salmonella enteritidis virulence genes from different origins
10.13590/j.cjfh.2017.04.005
- VernacularTitle:不同来源肠炎沙门菌毒力基因特征分析
- Author:
Liya NIU
;
Liyun QIN
;
Baohong XU
;
Yan WANG
;
Xinying YANG
;
Dianxing SUN
;
Yumei GUO
- Keywords:
Food poisoning;
Salmonella enteritidis;
virulence genes;
raw poultry;
slaughterhouse;
stall of sale;
foodborne pathogens
- From:
Chinese Journal of Food Hygiene
2017;29(4):412-417
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the differences and characteristics of virulence genes carried by Salmonella enteritidis from different sources in Shijiazhuang City.Methods One hundred and twenty-four strains of Salmonella enteritidis isolated from morning markets of raw and poultry stalls,slaughterhouses and food poisoning specimens in Shijiazhuang area were collected.Eight virulence genes (invA,sopE,agfA,spvR,hilA,stn,pefA,shdA) were detected by polymerase chain reaction (PCR).Results Salmonella enteritidis might have different virulence gene profiles.The above eight virulence genes were detected in different strains.The carrying rate of virulence genes invA,sopE,stn,hilA,spvR and pefA in the food poisoning strains was higher than 94％.There was no difference in the carrying rate of 8 virulence gene between the morning raw poultry stalls isolates and the patient strains,but was different with the slaughterhouse strains.Conclusion There were more risks of food poisoning caused by Salmonella enteritidis from morning markets,and the hygiene supervision should be strengthened to prevent and control foodborne disease.
