ArticleBioMed research international2015
Comparison of Antibiotic Resistance and Virulence Factors among Escherichia coli Isolated from Conventional and Free-Range Poultry.
Article in BioMed research international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Scoping Review of Factors Affecting Antimicrobial Use and the Spread of Antimicrobial Resistance in the Poultry Production Chain.Veterinary sciences · 2025Review
- Prevalence of ESBL-Resistant Genes in Birds in Italy-A Comprehensive Review.Animals : an open access journal from MDPI · 2025Review
- Extended-spectrum β-lactamase-producingVeterinary world · 2024Review
- Antibacterial Activity of Biodegradable Films Incorporated with Biologically-Synthesized Silver Nanoparticles and the Evaluation of Their Migration to Chicken Meat.Antibiotics (Basel, Switzerland) · 2023Article
- Article
- Western and non-western gut microbiomes reveal new roles of Prevotella in carbohydrate metabolism and mouth-gut axis.NPJ biofilms and microbiomes · 2021Article
- Removal of antimicrobial prophylaxis and its effect on swine carriage of antimicrobial-resistant coliforms.Science progress · 2021Article
- Genetic Features of Extended-Spectrum β-Lactamase-ProducingAntibiotics (Basel, Switzerland) · 2021Article
- Antimicrobial Resistance in Farm Animals in Brazil: An Update Overview.Animals : an open access journal from MDPI · 2020Review
- The dynamic of antibiotic resistance in commensal Escherichia coli throughout the growing period in broiler chickens: fast-growing vs. slow-growing breeds.Poultry science · 2020Article
- Genotypic and phenotypic profiles of virulence factors and antimicrobial resistance of Proteus mirabilis isolated from chicken carcasses: potential zoonotic risk.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2019Article
- Distribution of ExPEC Virulence Factors,Frontiers in microbiology · 2018Article
- High Heterogeneity of Escherichia coli Sequence Types Harbouring ESBL/AmpC Genes on IncI1 Plasmids in the Colombian Poultry Chain.PloS one · 2017Article
- Risk of Transmission of Antimicrobial ResistantFrontiers in microbiology · 2017Article
- Antibacterial Properties of Tebipenem Pivoxil Tablet, a New Oral Carbapenem Preparation against a Variety of Pathogenic Bacteria in Vitro and in Vivo.Molecules (Basel, Switzerland) · 2016Article
- Genetic characterization of commensal Escherichia coli isolated from laboratory rodents.SpringerPlus · 2016Article
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Microbiological contamination in commercial poultry production has caused concerns for human health because of both the presence of pathogenic microorganisms and the increase in antimicrobial resistance in bacterial strains that can cause treatment failure of human infections. The aim of our study was to analyze the profile of antimicrobial resistance and virulence factors of E. coli isolates from chicken carcasses obtained from different farming systems (conventional and free-range poultry). A total of 156 E. coli strains were isolated and characterized for genes encoding virulence factors described in extraintestinal pathogenic E. coli (ExPEC). Antimicrobial susceptibility testing was performed for 15 antimicrobials, and strains were confirmed as extended spectrum of β-lactamases- (ESBLs-) producing E. coli by phenotypic and genotypic tests. The results indicated that strains from free-range poultry have fewer virulence factors than strains from conventional poultry. Strains from conventionally raised chickens had a higher frequency of antimicrobial resistance for all antibiotics tested and also exhibited genes encoding ESBL and AmpC, unlike free-range poultry isolates, which did not. Group 2 CTX-M and CIT were the most prevalent ESBL and AmpC genes, respectively. The farming systems of poultries can be related with the frequency of virulence factors and resistance to antimicrobials in bacteria.
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