Prevalence and antimicrobial resistance of Salmonella in retail foods in northern China

He Yan, Lin Li, M. Jahangir Alam, Sumio Shinoda, Shin ichi Miyoshi, Lei Shi

Research output: Contribution to journalArticlepeer-review

79 Citations (Scopus)

Abstract

A total of 387 retail meat, seafood and milk powder samples were collected from nine cities in northern China in 2005 and screened for the presence of Salmonella. Salmonella strains isolated were subjected to serotyping and antimicrobial susceptibility testing. Salmonella was isolated from 81 (20.9%, 81/387) samples and classified into 23 serotypes. The isolates were frequently resistant to sulfamethoxazole (86.4%), sulfamethoxazole/trimethoprim (48.1%), nalidixic acid (30.9%), tetracycline (19.8%), carboxybenzylpenicillin (17.3%), amoxicillin (17.3%) and ampicillin (16.0%). The multiple resistance (resistance to ≥3 antibiotics) was found in 29.6% (n = 24) isolates. Additionally, 4 isolates from chicken displayed the ACSSuTNx profile, resistant to ampicillin, chloramphenicol, streptomycin, sulfonamide, tetracycline and nalidixic acid, in particular, strain HBS084 showing the resistance to as many as 20 antibiotics. Salmonella from chicken showed the higher frequency of antimicrobial resistance. Our findings indicate that in northern China food products of animal origin can be a source of exposure for consumers to multiresistant Salmonella strains.

Original languageEnglish
Pages (from-to)230-234
Number of pages5
JournalInternational Journal of Food Microbiology
Volume143
Issue number3
DOIs
Publication statusPublished - Oct 15 2010

Keywords

  • Antimicrobial resistance
  • Prevalence
  • Retail meats
  • Salmonella

ASJC Scopus subject areas

  • Food Science
  • Microbiology

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