| Antimicrobial Susceptibility Testing and Genotypic Characterization of Staphylococcus aureus from Food and Food Animals. | |
| | |
MedLine Citation:
|
PMID: 22044289 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Abstract Staphylococcus aureus is commonly present in humans and animals. The aim of this study was to investigate antimicrobial resistance and genetic characteristics of S. aureus from food and food animals in Shaanxi Province in China. A total of 332 nasal swabs, breast skin swabs, raw milk, and pork samples were collected from local pig, dairy farms, or local grocery stores and screened for the presence of S. aureus. S. aureus isolates were characterized using antimicrobial susceptibility, pulsed-field gel electrophoresis (PFGE) analysis, and polymerase chain reaction for detecting pvl and mecA genes. Methicillin-resistant S. aureus (MRSA) strains were additionally tested for SCCmec type and exfoliative toxin genes. The prevalence of S. aureus was 30.6% in pig nasal swabs, 32.5% in pork, 25.7% in cow nasal swabs, 30.8% in cow breast skin swabs, and 29.3% in milk samples. Resistances were common among isolates tested against erythromycin (65.7%), tetracycline (65.7%), ciprofloxacin (52.7%), followed by gentamicin (36.7%), chloramphenicol (23.1%), cefoxitin (8.3%), and oxacillin (7.7%), but no isolate was resistant to vancomycin, amikacin, or cefoperazone. pvl gene was found in the isolates from all types of samples except from cow nasal swabs. Fourteen isolates from pig nasal swabs contained mecA gene and were considered as MRSA. PFGE analysis showed that nasal isolates differed from food isolates, but isolates from the same animal source appeared to cluster closely. The PFGE patterns of MRSA isolates were different from other S. aureus isolates from pig nasal cavity even though they were from the same source. All the MRSA isolates belonged to SCCmec type IV(b). No isolates contained exfoliative toxin genes. These findings indicated that S. aureus, including multidrug-resistant S. aureus, are widely spread in food animals and animal-derived foods in Shaanxi Province, China. MRSA isolates from pigs may pose potential health risks for workers in swine farms and the community at large. |
| | |
Authors:
|
Xin Wang; Jianghong Meng; Ting Zhou; Yanming Zhang; Baowei Yang; Meili Xi; Jinling Sheng; Shuai Zhi; Xiaodong Xia |
Related Documents
:
|
21626209 - Intrinsic and inducible resistance to hydrogen peroxide in bifidobacterium species. 21618029 - Isolation and characterization of the first chinese porcine sapelovirus strain. 21986829 - Characterization of a dha-1-producing klebsiella pneumoniae strain involved in an outbr... 23124279 - Methicillin-resistant staphylococcus aureus (mrsa) detected at four u.s. wastewater tre... 23217979 - A comparison of clinical outcomes between healthcare-associated infections due to commu... 21570219 - Isolation and characterization of β-haemolytic-streptococci from endometritis in mares. 21353469 - Association of decreased left atrial strain and strain rate with stroke in chronic atri... 1874399 - Transformation of 3-chlorodibenzofuran by pseudomonas sp. hh69. 23264499 - Microbacterium lemovicicum sp. nov., a bacterium isolated from natural uranium-rich soil. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-11-1 |
Journal Detail:
|
Title: Foodborne pathogens and disease Volume: - ISSN: 1556-7125 ISO Abbreviation: - Publication Date: 2011 Nov |
Date Detail:
|
Created Date: 2011-11-2 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101120121 Medline TA: Foodborne Pathog Dis Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
1 College of Food Science and Engineering, Northwest A&F University , Yangling, Shaanxi, China . |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Prevalence of Listeria monocytogenes, Vibrio parahaemolyticus, Staphylococcus aureus, and Salmonella...
Next Document: Measuring motivation in swine: the food-metric scale.