Characterisation of AmpC and extended-spectrum beta-lactamase producing E. coli from New Zealand dairy farms

Burgess, Sara; Aplin, Jacinda; Biggs, Patrick J.; Breckell, Georgia; Benschop, Jackie; Fayaz, Ahmed; Toombs-Ruane, Leah; Midwinter, Anne C.

doi:10.1016/j.idairyj.2021.104998

Cited by 9 publications

(29 citation statements)

References 77 publications

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“…This is in comparison with our previous regional cross-sectional study carried out in both spring and autumn, where 5/75 (7 %) of enriched pooled faecal samples from across 4/15 (27 %) farms were positive for AmpC-hyperproducing E. coli [21]. To our knowledge only one study in Israel determined that the prevalence of ESBL-producing E.…”

Section: Discussionsupporting

confidence: 58%

“…In our previous cross-sectional study, ESBL-producing E. coli were detected in spring only from one of fifteen farms [21]. Previous longitudinal studies in France and the UK suggest the incidence of ESBL producing E.…”

Section: Discussionmentioning

confidence: 94%

“…Other AmpC-hyperproducing E. coli isolated from cattle belong to a diverse range of STs [14, 21, 42]. In a study from South West England [14], E.…”

Section: Discussionmentioning

confidence: 99%

“…Two characteristic E. coli colonies from each agar (in total 2–6 colonies from each enrichment) were purified and identified as described previously [21]. ESBL- and AmpC-producing E.…”

Section: Methodsmentioning

confidence: 99%

“…We recently carried out a cross-sectional survey across one New Zealand region and found a higher prevalence of overexpressed chromosomal ampC E. coli compared with plasmid mediated AmpC or ESBL producing E. coli [21]. It is unknown whether this observation was associated with the use of specific antibiotics and if this characteristic E.…”

Section: Introductionmentioning

confidence: 99%

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The epidemiology of AmpC-producing Escherichia coli isolated from dairy cattle faeces on pasture-fed farms

Burgess

Brousse

Ortolani

et al. 2021

Journal of Medical Microbiology

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Introduction. Antibiotic use, particularly amoxicillin-clavulanic acid in dairy farming, has been associated with an increased incidence of AmpC-hyperproducing Escherichia coli . Gap statement. There is limited information on the incidence of AmpC-hyperproducing E. coli from seasonal pasture-fed dairy farms. Aim. We undertook a New Zealand wide cross-sectional study to determine the prevalence of AmpC-producing E. coli carried by dairy cattle. Methodology. Paddock faeces were sampled from twenty-six dairy farms and were processed for the selective growth of both extended-spectrum beta-lactamase (ESBL)- and AmpC-producing E. coli . Whole genome sequence analysis was carried out on 35 AmpC-producing E. coli . Results. No ESBL- or plasmid mediated AmpC-producing E. coli were detected, but seven farms were positive for chromosomal mediated AmpC-hyperproducing E. coli . These seven farms were associated with a higher usage of injectable amoxicillin antibiotics. Whole genome sequence analysis of the AmpC-producing E. coli demonstrated that the same strain (<3 SNPs difference) of E. coli ST5729 was shared between cows on a single farm. Similarly, the same strain (≤15 SNPs difference) of E. coli ST8977 was shared across two farms (separated by approximately 425 km). Conclusion. These results infer that both cow-to-cow and farm-to-farm transmission of AmpC-producing E. coli has occurred.

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Section: Discussionsupporting

confidence: 58%

Section: Discussionmentioning

confidence: 94%

“…Other AmpC-hyperproducing E. coli isolated from cattle belong to a diverse range of STs [14, 21, 42]. In a study from South West England [14], E.…”

Section: Discussionmentioning

confidence: 99%

“…Two characteristic E. coli colonies from each agar (in total 2–6 colonies from each enrichment) were purified and identified as described previously [21]. ESBL- and AmpC-producing E.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The epidemiology of AmpC-producing Escherichia coli isolated from dairy cattle faeces on pasture-fed farms

Burgess

Brousse

Ortolani

et al. 2021

Journal of Medical Microbiology

Self Cite

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Antibiotic resistance and phylogenetic profiling of Escherichia coli from dairy farm soils; organic versus conventional systems

Amoafo

Malekar

Jones

et al. 2022

Current Research in Microbial Sciences

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Highlights First known comparison of antimicrobial resistance traits in E. coli strains from new zealand farms practicing organic and conventional husbandry. Potential extended spectrum β-lactamase producing strains isolated from dairy farm environments. Organic dairy farms tended to harbour fewer resistant isolates than those recovered from conventionally farmed counterparts. Evidence for anthroponotic transmission of resistant strains of human origin to farm environments. Implications for the spread of antimicrobial resistance traits from farm environments discussed.

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Extended-spectrum β-lactamase- and AmpC β-lactamase-producing Enterobacterales associated with urinary tract infections in the New Zealand community: a case-control study

Toombs-Ruane¹,

Marshall²,

Benschop³

et al. 2023

International Journal of Infectious Diseases

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Characterisation of AmpC and extended-spectrum beta-lactamase producing E. coli from New Zealand dairy farms

Cited by 9 publications

References 77 publications

The epidemiology of AmpC-producing Escherichia coli isolated from dairy cattle faeces on pasture-fed farms

The epidemiology of AmpC-producing Escherichia coli isolated from dairy cattle faeces on pasture-fed farms

Antibiotic resistance and phylogenetic profiling of Escherichia coli from dairy farm soils; organic versus conventional systems

Extended-spectrum β-lactamase- and AmpC β-lactamase-producing Enterobacterales associated with urinary tract infections in the New Zealand community: a case-control study

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