Distribution and molecular type of Salmonella from external environment in Henan province
10.3760/cma.j.issn.0254-6450.2016.10.017
- VernacularTitle:河南省外环境中沙门菌流行特征和分子分型研究
- Author:
Yujiao MU
1
;
Baifan ZHANG
;
Jiayong ZHAO
;
Zeqian WANG
;
Shengli XIA
;
Xueyong HUANG
;
Bianli XU
Author Information
1. 河南省疾病预防控制中心传染病预防控制所
- Keywords:
Salmonella;
External environment;
Serotype;
Pulsed field gel electrophoresis;
Molecular typing
- From:
Chinese Journal of Epidemiology
2016;37(10):1404-1408
- CountryChina
- Language:Chinese
-
Abstract:
Objective To understand the distribution of Salmonella in external environment in Henan province,and explore the distribution of different serotypes of the Salmonella and their homology.Methods A total of 4 488 samples were collected form animal dung,meat products and kitchen utensils,and identified by biochemical tests and serotyped by serum agglutination reaction.The predominant serotypes were further typed by PFGE.Results A total of 324 Salmonella strains were detected in these samples,the detection rate was 7.21％.The 324 Salmonella isolates belonged to 39 serotypes,S.enteritidis (24.07％,78/324) and S.derby (20.37％,66/324) were predominant.Forty six strains ofS.enteritidis and 30 strains of S.derby were divided into 12 and 17 molecular patterns by digestion with Xba Ⅰ,while chicken and swine were the predominant animal hosts.Conclusions Serotyping of external environment Salmonella were phenotypically diverse and the serotype of Salmonella from different sources were different.The same clone was prevalent in same area.It is necessary to strengthen supervision and surveillance to ensure food safety.
