ArticleApplied and environmental microbiology2009
beta-Lactam resistance in salmonella strains isolated from retail meats in the United States by the National Antimicrobial Resistance Monitoring System between 2002 and 2006.
Article in Applied and environmental microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed, 58 citations in OpenAlex.
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- Molecular Detection of Integrons, Colistin andMicroorganisms · 2022Article
- The phenotypic and molecular characteristics of antimicrobial resistance of Salmonella enterica subsp. enterica serovar Typhimurium in Henan Province, China.BMC infectious diseases · 2020Article
- Development of Salmonellosis as Affected by Bioactive Food Compounds.Microorganisms · 2019Review
- Detection of CTX-M-1 extended-spectrum beta-lactamase among ceftiofur-resistantJournal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2019Article
- Data-Driven Analysis of Antimicrobial Resistance in Foodborne Pathogens from Six States within the US.International journal of environmental research and public health · 2019Article
- Childhood Diarrhoea in the Eastern Mediterranean Region with Special Emphasis on Non-Typhoidal Salmonella at the Human⁻Food Interface.Pathogens (Basel, Switzerland) · 2019Review
- Evolution and transmission of a conjugative plasmid encoding both ciprofloxacin and ceftriaxone resistance in Salmonella.Emerging microbes & infections · 2019Article
- Whole-Genome Sequence Analysis of CTX-M Containing Escherichia coli Isolates from Retail Meats and Cattle in the United States.Microbial drug resistance (Larchmont, N.Y.) · 2018Article
- Examination of Quaternary Ammonium Compound Resistance inFrontiers in microbiology · 2017Article
- Serotype Distribution, Antimicrobial Resistance, and Class 1 Integrons Profiles ofFrontiers in microbiology · 2017Article
- Increasing prevalence of ciprofloxacin-resistant food-borne Salmonella strains harboring multiple PMQR elements but not target gene mutations.Scientific reports · 2015Article
- Epidemiology, Clinical Presentation, Laboratory Diagnosis, Antimicrobial Resistance, and Antimicrobial Management of Invasive Salmonella Infections.Clinical microbiology reviews · 2015Review
- Influence of therapeutic ceftiofur treatments of feedlot cattle on fecal and hide prevalences of commensal Escherichia coli resistant to expanded-spectrum cephalosporins, and molecular characterization of resistant isolates.Applied and environmental microbiology · 2013Article
- Incidence, clinical presentation, and antimicrobial resistance trends in Salmonella and Shigella infections from children in Yucatan, Mexico.Frontiers in microbiology · 2013Article
- First detection of oqxAB in Salmonella spp. isolated from food.Antimicrobial agents and chemotherapy · 2013Article
- Obacunone represses Salmonella pathogenicity islands 1 and 2 in an envZ-dependent fashion.Applied and environmental microbiology · 2012Article
- Comparison of the prevalences and antimicrobial resistances of Escherichia coli isolates from different retail meats in the United States, 2002 to 2008.Applied and environmental microbiology · 2012Article
- Microarray-based analysis of IncA/C plasmid-associated genes from multidrug-resistant Salmonella enterica.Applied and environmental microbiology · 2011Article
- Comparative genomics of 28 Salmonella enterica isolates: evidence for CRISPR-mediated adaptive sublineage evolution.Journal of bacteriology · 2011Article
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7 authors at 2 institutions in 1 country.
Funding
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Abstract
Ampicillin-resistant (Amp(r)) Salmonella enterica isolates (n = 344) representing 32 serotypes isolated from retail meats from 2002 to 2006 were tested for susceptibility to 21 other antimicrobial agents and screened for the presence of five beta-lactamase gene families (bla(CMY), bla(TEM), bla(SHV), bla(OXA), and bla(CTX-M)) and class 1 integrons. Among the Amp(r) isolates, 66.9% were resistant to five or more antimicrobials and 4.9% were resistant to 10 or more antimicrobials. Coresistance to other beta-lactams was noted for amoxicillin-clavulanic acid (55.5%), ceftiofur (50%), cefoxitin (50%), and ceftazidime (24.7%), whereas less than 5% of isolates were resistant to piperacillin-tazobactam (4.9%), cefotaxime (3.5%), ceftriaxone (2%), and aztreonam (1.2%). All isolates were susceptible to cefepime, imipenem, and cefquinome. No Salmonella producing extended-spectrum beta-lactamases was found in this study. Approximately 7% of the isolates displayed a typical multidrug-resistant (MDR)-AmpC phenotype, with resistance to ampicillin, chloramphenicol, streptomycin, sulfonamide, tetracycline, plus resistance to amoxicillin-clavulanic acid, cefoxitin, and ceftiofur and with decreased susceptibility to ceftriaxone (MIC > or = 4 microg/ml). Pulsed-field gel electrophoresis results showed that several MDR clones were geographically dispersed in different types of meats throughout the five sampling years. Additionally, 50% of the isolates contained bla(CMY), 47% carried bla(TEM-1), and 2.6% carried both genes. Only 15% of the isolates harbored class I integrons carrying various combinations of aadA, aadB, and dfrA gene cassettes. The bla(CMY), bla(TEM), and class 1 integrons were transferable through conjugation and/or transformation. Our findings indicate that a varied spectrum of coresistance traits is present in Amp(r) Salmonella strains in the meat supply of the United States, with a continued predominance of bla(CMY) and bla(TEM) genes in beta-lactam-resistant isolates.
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