ArticleApplied and environmental microbiology2010
Distribution of antimicrobial resistance and virulence genes in Enterococcus spp. and characterization of isolates from broiler chickens.
Article in Applied and environmental microbiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.
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Who cites it
49 citing papers in PubMed.
- Integrated One-Health analysis of antimicrobial resistance, biofilm formation, and genetic relatedness of Enterococcus spp. at the human-food interface.Scientific reports · 2026Article
- Narasin used as a feed additive in conventional rearing of broilers can co-select for vancomycin-resistant Enterococcus faecium through the NarAB ionophore resistance mechanisms.The Journal of antimicrobial chemotherapy · 2026Article
- Prevalence, antimicrobial resistance, and virulence factors of Enterococcus spp. infecting broiler chickens in Egypt.Scientific reports · 2026Article
- From Farm to Fork: Antimicrobial-Resistant Bacterial Pathogens in Livestock Production and the Food Chain.Veterinary sciences · 2025Review
- High prevalence of multi-drug-resistant bacteria in faecal samples from UK passerine birds.Scientific reports · 2025Article
- Tracking the Prevalence of Antibiotic Resistance inAntibiotics (Basel, Switzerland) · 2024Article
- One Health Approach of Enterococcal Population Structure and Antibacterial Resistance Along the Food Chain - Four PLADs, China, 2015-2022.China CDC weekly · 2024Article
- Safety assessment of enterocin-producing Enterococcus strains isolated from sheep and goat colostrum.BMC microbiology · 2024Article
- Non-Clinical microbiology reviews · 2024Review
- Occurrence of Antimicrobial-ResistantAntibiotics (Basel, Switzerland) · 2024Article
- Dynamic effects of black soldier fly larvae meal on the cecal bacterial microbiota and prevalence of selected antimicrobial resistant determinants in broiler chickens.Animal microbiome · 2024Article
- Genetic diversity and distinction ofFrontiers in microbiology · 2024Article
- Diversity of Fecal Indicator Enterococci among Different Hosts: Importance to Water Contamination Source Tracking.Microorganisms · 2023Article
- Contribution of Manure-Spreading Operations to Bioaerosols and Antibiotic Resistance Genes' Emission.Microorganisms · 2023Article
- Bird immunobiological parameters in the dissemination of the biofilm-forming bacteriaVeterinary world · 2023Article
- Antibiotic Resistance among Gastrointestinal Bacteria in Broilers: A Review Focused onAnimals : an open access journal from MDPI · 2023Review
- Comparative Genomic Analysis of Enterococci across Sectors of the One Health Continuum.Microorganisms · 2023Article
- Distribution and association of antimicrobial resistance and virulence characteristics inFrontiers in microbiology · 2023Article
- Production systems and important antimicrobial resistant-pathogenic bacteria in poultry: a review.Journal of animal science and biotechnology · 2022Review
- In Vitro and In Silico Based Approaches to Identify Potential Novel Bacteriocins from the Athlete Gut Microbiome of an Elite Athlete Cohort.Microorganisms · 2022Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Enterococci are now frequent causative agents of nosocomial infections. In this study, we analyzed the frequency and distribution of antibiotic resistance and virulence genotypes of Enterococcus isolates from broiler chickens. Fecal and cecal samples from nine commercial poultry farms were collected to quantify total enterococci. Sixty-nine presumptive enterococci were isolated and identified by API 20 Strep, and their susceptibilities to antibiotics were determined. Genotypes were assessed through the use of a novel DNA microarray carrying 70 taxonomic, 17 virulence, and 174 antibiotic resistance gene probes. Total enterococcal counts were different from farm to farm and between sample sources (P < 0.01). Fifty-one (74%) of the isolates were identified as E. faecium, whereas nine (13%), seven (10%), and two (3%) isolates were identified as E. hirae, E. faecalis, and E. gallinarum, respectively. Multiple-antibiotic resistance was evident in E. faecium and E. faecalis isolates. The most common multiple-antibiotic resistance phenotype was Bac Ery Tyl Lin Str Gen Tet Cip. Genes conferring resistance to aminoglycoside (aac, aacA-aphD, aadB, aphA, sat4), macrolide (ermA, ermB, ermAM, msrC), tetracycline (tetL, tetM, tetO), streptogramin (satG_vatE8), bacitracin (bcrR), and lincosamide (linB) antibiotics were detected in corresponding phenotypes. A range of 9 to 12 different virulence genes was found in E. faecalis, including ace, agg, agrB(Efs) (agrB gene of E. faecalis), cad1, the cAM373 and cCF10 genes, cob, cpd1, cylAB, efaA(Efs), and gelE. All seven E. faecalis isolates were found to carry the gelE gene and to hydrolize gelatin and bile salts. Results from this study showed the presence of enterococci of public and environmental health concerns in broiler chicken farms and demonstrated the utility of a microarray to quickly and reliably analyze resistance and virulence genotypes of Enterococcus spp.
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