ArticlePloS one2019
Characterization of cefotaxime resistant Escherichia coli isolated from broiler farms in Ecuador.
Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed.
- Antibiotic Resistance of Profiles ofVeterinary medicine international · 2026Article
- Molecular characterization of antimicrobial resistance genes and plasmid profiles in enterobacterales isolated from urinary tract infections in rural outpatient women in Otavalo, Ecuador.BMC infectious diseases · 2025Article
- Genomic Insights into Colistin and Tigecycline Resistance in ESBL-ProducingAntibiotics (Basel, Switzerland) · 2025Article
- Genetic Characterization, Transmission Pattern and Health Risk Analysis of Intestinal Colonization ESBL-ProducingMicroorganisms · 2024Article
- Mobile Colistin Resistance (Antibiotics (Basel, Switzerland) · 2023Review
- Co-Harboring of Beta-Lactamases andAntibiotics (Basel, Switzerland) · 2023Article
- Prevalence of Antimicrobial Resistance and Clonal Relationship in ESBL/AmpC-ProducingAntibiotics (Basel, Switzerland) · 2023Article
- Stability and genetic insights of the co-existence ofFrontiers in public health · 2023Article
- Pandemic one health clones ofFrontiers in cellular and infection microbiology · 2023Article
- Extended-Spectrum ß-Lactamase-ProducingMicroorganisms · 2022Article
- Extended-Spectrum Beta-Lactamases ProducingInfection and drug resistance · 2022Review
- Epidemiology and antimicrobial resistance of Escherichia coli in broiler chickens, farmworkers, and farm sewage in Bangladesh.Veterinary medicine and science · 2022Article
- Detection and characterisation of extended-spectrum and plasmid-mediated AmpC β-lactamase produced byArhiv za higijenu rada i toksikologiju · 2021Article
- Prevalence and Characterization of ESBL/AmpC ProducingAntibiotics (Basel, Switzerland) · 2021Article
- Prevalence and Risk Factors for ESBL/AmpC-Microorganisms · 2021Article
- Modulatory Effects ofAnimals : an open access journal from MDPI · 2021Article
- Whole-Genome Sequencing Reveals the Presence of theAntibiotics (Basel, Switzerland) · 2021Article
- Genetic Features of Extended-Spectrum β-Lactamase-ProducingAntibiotics (Basel, Switzerland) · 2021Article
- Emergence and Clonal Spread of CTX-M-65-ProducingFrontiers in microbiology · 2021Article
- Comparative Genomics of Emerging Lineages and Mobile Resistomes of Contemporary Broiler Strains ofFrontiers in microbiology · 2021Article
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Authors and funding
5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Antimicrobial resistance (AR) is a worldwide concern. Up to a 160% increase in antibiotic usage in food animals is expected in Latin American countries. The poultry industry is an increasingly important segment of food production and contributor to AR. The objective of this study was to evaluate the prevalence, AR patterns and the characterization of relevant resistance genes in Extended Spectrum β-lactamases (ESBL) and AmpC-producing E. coli from large poultry farms in Ecuador. Sampling was performed from June 2013 to July 2014 in 6 slaughterhouses that slaughter broilers from 115 farms totaling 384 flocks. Each sample of collected caeca was streaked onto TBX agar supplemented with cefotaxime (3 mg/l). In total, 176 isolates were analyzed for AR patterns by the disk diffusion method and for blaCTX-M, blaTEM, blaCMY, blaSHV, blaKPC, and mcr-1 by PCR and sequencing. ESBL and AmpC E. coli were found in 362 flocks (94.3%) from 112 farms (97.4%). We found that 98.3% of the cefotaxime-resistant isolates were multi-resistant to antibiotics. Low resistance was observed for ertapenem and nitrofurantoin. The most prevalent ESBL genes were the ones belonging to the blaCTX-M group (90.9%), specifically the blaCTX-M-65, blaCTX-M-55 and blaCTX-M-3 alleles. Most of the AmpC strains presented the blaCMY-2 gene. Three isolates showed the mcr-1 gene. Poultry production systems represent a hotspot for AR in Ecuador, possibly mediated by the extensive use of antibiotics. Monitoring this sector in national and regional plans of AR surveillance should therefore be considered.
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