TY - JOUR
T1 - Prevalence and antimicrobial resistance of Salmonella in retail foods in northern China
AU - Yan, He
AU - Li, Lin
AU - Alam, M. Jahangir
AU - Shinoda, Sumio
AU - Miyoshi, Shin ichi
AU - Shi, Lei
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China ( 20877028 ), the Special Grade of the Financial Support from China Postdoctoral Science Foundation ( 200902327 ) and the Fundamental Research Funds for the Central Universities, SCUT ( 2009ZM0224 ).
PY - 2010/10/15
Y1 - 2010/10/15
N2 - 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.
AB - 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.
KW - Antimicrobial resistance
KW - Prevalence
KW - Retail meats
KW - Salmonella
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U2 - 10.1016/j.ijfoodmicro.2010.07.034
DO - 10.1016/j.ijfoodmicro.2010.07.034
M3 - Article
C2 - 20797804
AN - SCOPUS:77957257907
SN - 0168-1605
VL - 143
SP - 230
EP - 234
JO - International Journal of Food Microbiology
JF - International Journal of Food Microbiology
IS - 3
ER -