title: [Detection and analysis of antibiotic resistance of Salmonella from retail meats in some districts of Shaanxi province].
abstract: OBJECTIVE
  Salmonella isolates recovered from retail meats that were collected in supermarkets and free markets in Xi'an and Yangling areas of Shaanxi province were studied to determine antibiotic susceptibility.
  
  
  METHODS
  Antimicrobial susceptibility to 14 antibiotics of 193 salmonella isolates were determined by using agar dilution method, which was recommended by National Committee of Clinical Laboratory Standard (NCCLS), and E.coli ATCC25922 and E.faecalis ATCC29212 as standard control strains.
  
  
  RESULTS
  The 44.6% of the salmonella isolates were resistant to sulfamethoxazole, followed by resistance to kanamycin (40.9%), tetracycline (37.8%), amoxicillin (26.9%), ampicillin (25.4%), gentamicin (23.3%) and chloramphenicol (21.8%). Some isolates also showed resistance to fluoroquinolones, the rates for ciprofloxacin, enrofloxacin, levofloxacin and gatifloxacin were 22.3%, 21.8%, 20.8% and 21.2%, respectively. 55 isolates (28.5%) were multidrug resistant (MDR) strains, 28 of 193 isolates (14.5%) could resist at least 13 antibiotics, 24 isolates (12.4%) were resistant to from 4 to 12 antibiotics.
  
  
  CONCLUSIONS
  Salmonella isolates recovered from retail meats in Xi'an district of Shaanxi province were seriously resistant to antimicrobials commonly used as human and veterinary medicine.
authors.affiliation: College of Food Science and Engineering, Northwest Agriculture and Forestry University, Yangling Shaanxi 712100, China.
authors.forename: Jin-ling
authors.initials: JL
authors.lastname: Shen
authors.forename: Bao-wei
authors.initials: BW
authors.lastname: Yang
authors.forename: Shuai
authors.initials: S
authors.lastname: Zhi
authors.forename: Sheng-hui
authors.initials: SH
authors.lastname: Cui
authors.forename: Mei-li
authors.initials: ML
authors.lastname: Xi
authors.forename: Peng-fei
authors.initials: PF
authors.lastname: Yang
authors.forename: Jiang-hong
authors.initials: JH
authors.lastname: Meng
mesh_terms: D000818:Animals; D002417:Cattle; D002645:Chickens; D024901:Drug Resistance, Multiple, Bacterial; D005516:Food Microbiology; D006041:Goats; D008461:Meat Products / Q000382:microbiology*; D012475:Salmonella / Q000187:drug effects* / Q000302:isolation & purification*; D012756:Sheep; D013552:Swine