What’s up ducks? – Antimicrobial resistance of Escherichia coli isolated from duck farm environment in Poland extended with genomic characteristics of cephalosporin-resistant strains

IF 2.4 2区农林科学 Q3 MICROBIOLOGY

Veterinary microbiology Pub Date : 2025-03-31 DOI:10.1016/j.vetmic.2025.110492

Magdalena Skarżyńska , Magdalena Zając , Renata Kwit , Anna Lalak , Aleksandra Śmiałowska-Węglińska , Paulina Pasim , Ewelina Skrzypiec , Weronika Koza , Dominika Wojdat , Emilia Mikos-Wojewoda , Dominika Pastuszka , Arkadiusz Bomba , Dariusz Wasyl

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引用次数: 0

Abstract

Antimicrobial resistance (AMR) in food-producing animals is a source of concern as it may pose a risk to public health. Studies of ducks in this area seem to be scarce. Thus, we aimed to evaluate the AMR occurrence in Escherichia coli from a duck farm environment in Poland. We applied official AMR monitoring methods to investigate AMR in E. coli isolated from boot swabs collected at 306 duck farms in Poland. The samples were screened for indicator, cephalosporin-, carbapenem- and colistin- resistant E. coli. Isolates were tested for antimicrobial susceptibility using the microbroth dilution method and interpreted with epidemiological cut-off values. Whole Genome Sequencing (WGS) of cephalosporin-resistant strains enabled an in-depth insight into specific resistance mechanisms, mobile genetic elements and phylogeny of strains. A total of 340 strains were isolated. The percentage of indicator E. coli equaled 89.9 %, while 19.3 % were obtained through selective screening for E. coli resistant to cephalosporins. Six were recovered on colistin-supplemented MacConkey agar. Among indicator E. coli 81.1 % were resistant and ciprofloxacin, ampicillin, tetracycline and nalidixic acid resistance were the most frequent, followed by folate-path inhibitors. Within the group of strains from cephalosporin resistance screening: 76.3 % exhibited ESBL-, 20.3 % AmpC-, and 3.4 % showed both ESBL- and AmpC- phenotypes. WGS of those strains revealed numerous AMR determinants, not only genes corresponding to mentioned phenotypes but also determinants encoding resistance to other medically important antimicrobials. Our study reveals that E. coli from duck farm environment constitute a reservoir of AMR determinants including those of public health concern.

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来源期刊

Veterinary microbiology 农林科学-兽医学

CiteScore

5.90

自引率

6.10%

发文量

221

审稿时长

52 days

期刊介绍： Veterinary Microbiology is concerned with microbial (bacterial, fungal, viral) diseases of domesticated vertebrate animals (livestock, companion animals, fur-bearing animals, game, poultry, fish) that supply food, other useful products or companionship. In addition, Microbial diseases of wild animals living in captivity, or as members of the feral fauna will also be considered if the infections are of interest because of their interrelation with humans (zoonoses) and/or domestic animals. Studies of antimicrobial resistance are also included, provided that the results represent a substantial advance in knowledge. Authors are strongly encouraged to read - prior to submission - the Editorials (''Scope or cope'' and ''Scope or cope II'') published previously in the journal. The Editors reserve the right to suggest submission to another journal for those papers which they feel would be more appropriate for consideration by that journal. Original research papers of high quality and novelty on aspects of control, host response, molecular biology, pathogenesis, prevention, and treatment of microbial diseases of animals are published. Papers dealing primarily with immunology, epidemiology, molecular biology and antiviral or microbial agents will only be considered if they demonstrate a clear impact on a disease. Papers focusing solely on diagnostic techniques (such as another PCR protocol or ELISA) will not be published - focus should be on a microorganism and not on a particular technique. Papers only reporting microbial sequences, transcriptomics data, or proteomics data will not be considered unless the results represent a substantial advance in knowledge. Drug trial papers will be considered if they have general application or significance. Papers on the identification of microorganisms will also be considered, but detailed taxonomic studies do not fall within the scope of the journal. Case reports will not be published, unless they have general application or contain novel aspects. Papers of geographically limited interest, which repeat what had been established elsewhere will not be considered. The readership of the journal is global.