title: [Surveillance and pathogenic analysis on non-typhoidal Salmonella in Guangdong province, 2007].
abstract: OBJECTIVE
  To understand non-typhoid Salmonella in diarrhea patients from Guangdong province in order to timely discover the outbreaks caused by them as well as to grasp the serotypes, antibiotic resistance and pulse-field gel electrophoresis (PFGE) types of those strains isolated from this surveillance program.
  
  
  METHODS
  Salmonella strains from diarrhea patients were detected and all the positive strains were tested by serum agglutination, antibiotic susceptibility and PFGE.
  
  
  RESULTS
  71 non-typhoid Salmonella strains were isolated from 1128 stool samples, with a positive rate of 6.29%. All the strains were divided into 29 serotypes, with Salmonella serotype enteritidis and typhimurium showing the most common serotypes. Most of the strains were sensitive to cephalosporins and quinolones. The antibiotic resistance rates of S. typhimurium were higher than S. enteritidis and S. stanley. Other than S. enteritidis, all the serotype strains did not have the same type of PFGE. 17 S. enteritidis strains digested by XbaI were divided to 8 PFGE types while the PFGE 4 type appeared the most common one. 12 S. enteritidis strains were typed again by SfiI and NotI, and there were still 3 groups of strains showing the same PFGE pattern.
  
  
  CONCLUSIONS
  Most of the infection caused by non-typhoidal Salmonella was sporadic in Guangdong province in 2007. Cephalosporins and quinolones seemed the best in curing the infection of non-typhoidal Salmonella at the clinics.
authors.affiliation: Guangdong Province Center for Disease Control and Prevention, Guangzhou 510300, China.
authors.forename: Bi-xia
authors.initials: BX
authors.lastname: Ke
authors.forename: Xiao-ling
authors.initials: XL
authors.lastname: Deng
authors.forename: Li-hua
authors.initials: LH
authors.lastname: Zhang
authors.forename: Jia-lin
authors.initials: JL
authors.lastname: Chen
authors.forename: Chang-wen
authors.initials: CW
authors.lastname: Ke
authors.forename: Chuan
authors.initials: C
authors.lastname: Guo
authors.forename: Hai-yan
authors.initials: HY
authors.lastname: Cao
authors.forename: Wei
authors.initials: W
authors.lastname: Lin
authors.forename: Hai-ling
authors.initials: HL
authors.lastname: Tan
authors.forename: Bo-sheng
authors.initials: BS
authors.lastname: Li
mesh_terms: D002681:China / Q000453:epidemiology; D003967:Diarrhea / Q000453:epidemiology / Q000382:microbiology*; D005243:Feces / Q000382:microbiology*; D005260:Female; D006801:Humans; D008297:Male; D012475:Salmonella / Q000145:classification / Q000302:isolation & purification*; D012480:Salmonella Infections / Q000453:epidemiology*; D018571:Sentinel Surveillance; D012703:Serotyping