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Mahjoub Khachroub A, Souguir M, Châtre P, Elhouda Bouhlel N, Jaidane N, Drapeau A, El Kantaoui M, Azaiez S, Madec JY, Mansour W, Haenni M. Carriage Rate of Enterobacterales Resistant to Extended-Spectrum Cephalosporins in the Tunisian Population. Pathogens 2024; 13:624. [PMID: 39204225 PMCID: PMC11356955 DOI: 10.3390/pathogens13080624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 07/18/2024] [Accepted: 07/24/2024] [Indexed: 09/03/2024] Open
Abstract
Enterobacterales resistant to extended-spectrum cephalosporins (ESC) are a marker of the antimicrobial resistance (AMR) burden. They are infecting humans, but the intestinal microbiota can also be transiently colonized without developing symptoms. Healthy carriage can promote silent dissemination of resistant bacteria, and data on this colonization are often lacking. Between 2021 and 2023, a sampling of healthy Tunisian people was carried out. Fecal samples (n = 256) were plated on selective agar, and all collected isolates were characterized by phenotypic (antibiograms) and genomic (whole-genome sequencing) methods. A total of 26 (26/256, 10.2%) isolates were collected, including 24 Escherichia coli and 2 Klebsiella pneumoniae. In total, 17 isolates (15 E. coli and 2 K. pneumoniae) presented an ESBL phenotype conferred by the blaCTX-M-15 gene, and 9 E. coli isolates presented an AmpC phenotype conferred by the blaDHA-1 gene. K. pneumoniae belonged to ST1564 and ST313, while E. coli belonged to diverse STs including the pandemic ST131 clone. Clonally related ST349 E. coli isolates carrying the blaDHA-1 gene were found in nine individuals. In parallel, four blaCTX-M-15 -positive E. coli isolates carried this ESC-resistance gene on an epidemic plasmid IncF/F-:A-:B53 previously identified in Tunisian pigeons and fish. These findings highlight the spread of genetically diverse ESC-resistant Enterobacterales as well as an epidemic plasmid in Tunisia, emphasizing the need for antimicrobial stewardship to limit the transmission of these resistances in the Tunisian population.
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Affiliation(s)
- Ahlem Mahjoub Khachroub
- Laboratoire de Recherche Biophysique Métabolique et Pharmacologie Appliquée, LR12ES02, Faculté de Médecine Ibn Al Jazzar Sousse, Université de Sousse, Sousse 4002, Tunisia; (A.M.K.); (M.S.); (N.E.B.); (N.J.); (M.E.K.); (S.A.); (W.M.)
| | - Meriem Souguir
- Laboratoire de Recherche Biophysique Métabolique et Pharmacologie Appliquée, LR12ES02, Faculté de Médecine Ibn Al Jazzar Sousse, Université de Sousse, Sousse 4002, Tunisia; (A.M.K.); (M.S.); (N.E.B.); (N.J.); (M.E.K.); (S.A.); (W.M.)
| | - Pierre Châtre
- Unité Antibiorésistance et Virulence Bactériennes, ANSES—Université de Lyon, 69007 Lyon, France; (P.C.); (A.D.); (J.-Y.M.)
| | - Nour Elhouda Bouhlel
- Laboratoire de Recherche Biophysique Métabolique et Pharmacologie Appliquée, LR12ES02, Faculté de Médecine Ibn Al Jazzar Sousse, Université de Sousse, Sousse 4002, Tunisia; (A.M.K.); (M.S.); (N.E.B.); (N.J.); (M.E.K.); (S.A.); (W.M.)
| | - Nadia Jaidane
- Laboratoire de Recherche Biophysique Métabolique et Pharmacologie Appliquée, LR12ES02, Faculté de Médecine Ibn Al Jazzar Sousse, Université de Sousse, Sousse 4002, Tunisia; (A.M.K.); (M.S.); (N.E.B.); (N.J.); (M.E.K.); (S.A.); (W.M.)
| | - Antoine Drapeau
- Unité Antibiorésistance et Virulence Bactériennes, ANSES—Université de Lyon, 69007 Lyon, France; (P.C.); (A.D.); (J.-Y.M.)
| | - Marah El Kantaoui
- Laboratoire de Recherche Biophysique Métabolique et Pharmacologie Appliquée, LR12ES02, Faculté de Médecine Ibn Al Jazzar Sousse, Université de Sousse, Sousse 4002, Tunisia; (A.M.K.); (M.S.); (N.E.B.); (N.J.); (M.E.K.); (S.A.); (W.M.)
| | - Sana Azaiez
- Laboratoire de Recherche Biophysique Métabolique et Pharmacologie Appliquée, LR12ES02, Faculté de Médecine Ibn Al Jazzar Sousse, Université de Sousse, Sousse 4002, Tunisia; (A.M.K.); (M.S.); (N.E.B.); (N.J.); (M.E.K.); (S.A.); (W.M.)
| | - Jean-Yves Madec
- Unité Antibiorésistance et Virulence Bactériennes, ANSES—Université de Lyon, 69007 Lyon, France; (P.C.); (A.D.); (J.-Y.M.)
| | - Wejdene Mansour
- Laboratoire de Recherche Biophysique Métabolique et Pharmacologie Appliquée, LR12ES02, Faculté de Médecine Ibn Al Jazzar Sousse, Université de Sousse, Sousse 4002, Tunisia; (A.M.K.); (M.S.); (N.E.B.); (N.J.); (M.E.K.); (S.A.); (W.M.)
| | - Marisa Haenni
- Unité Antibiorésistance et Virulence Bactériennes, ANSES—Université de Lyon, 69007 Lyon, France; (P.C.); (A.D.); (J.-Y.M.)
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Botts RT, Page DM, Bravo JA, Brown ML, Castilleja CC, Guzman VL, Hall S, Henderson JD, Kenney SM, Lensink ME, Paternoster MV, Pyle SL, Ustick L, Walters-Laird CJ, Top EM, Cummings DE. Polluted wetlands contain multidrug-resistance plasmids encoding CTX-M-type extended-spectrum β-lactamases. Plasmid 2023; 126:102682. [PMID: 37023995 PMCID: PMC10213127 DOI: 10.1016/j.plasmid.2023.102682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 04/08/2023]
Abstract
While most detailed analyses of antibiotic resistance plasmids focus on those found in clinical isolates, less is known about the vast environmental reservoir of mobile genetic elements and the resistance and virulence factors they encode. We selectively isolated three strains of cefotaxime-resistant Escherichia coli from a wastewater-impacted coastal wetland. The cefotaxime-resistant phenotype was transmissible to a lab strain of E. coli after one hour, with frequencies as high as 10-3 transconjugants per recipient. Two of the plasmids also transferred cefotaxime resistance to Pseudomonas putida, but these were unable to back-transfer this resistance from P. putida to E. coli. In addition to the cephalosporins, E. coli transconjugants inherited resistance to at least seven distinct classes of antibiotics. Complete nucleotide sequences revealed large IncF-type plasmids with globally distributed replicon sequence types F31:A4:B1 and F18:B1:C4 carrying diverse antibiotic resistance and virulence genes. The plasmids encoded extended-spectrum β-lactamases blaCTX-M-15 or blaCTX-M-55, each associated with the insertion sequence ISEc9, although in different local arrangements. Despite similar resistance profiles, the plasmids shared only one resistance gene in common, the aminoglycoside acetyltransferase aac(3)-IIe. Plasmid accessory cargo also included virulence factors involved in iron acquisition and defense against host immunity. Despite their sequence similarities, several large-scale recombination events were detected, including rearrangements and inversions. In conclusion, selection with a single antibiotic, cefotaxime, yielded conjugative plasmids conferring multiple resistance and virulence factors. Clearly, efforts to limit the spread of antibiotic resistance and virulence among bacteria must include a greater understanding of mobile elements in the natural and human-impacted environments.
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Affiliation(s)
- Ryan T Botts
- Department of Mathematics, Information, and Computer Sciences, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Dawne M Page
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Joseph A Bravo
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Madelaine L Brown
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Claudia C Castilleja
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Victoria L Guzman
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Samantha Hall
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Jacob D Henderson
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Shelby M Kenney
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Mariele E Lensink
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Megan V Paternoster
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Sarah L Pyle
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Lucas Ustick
- Department of Mathematics, Information, and Computer Sciences, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America; Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Chara J Walters-Laird
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America
| | - Eva M Top
- Department of Biological Sciences, Institute for Interdisciplinary Data Sciences (IIDS), University of Idaho, 875 Perimeter Dr., Moscow, ID 83844, United States of America
| | - David E Cummings
- Department of Biology, Point Loma Nazarene University, 3900 Lomaland Dr., San Diego, CA 92106, United States of America.
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Gonggrijp MA, Velthuis AGJ, Heuvelink AE, van den Heuvel KWH, Ter Bogt-Kappert CC, Buter GJ, van Schaik G, Lam TJGM. Prevalence of extended-spectrum and AmpC β-lactamase-producing Escherichia coli in young calves on Dutch dairy farms. J Dairy Sci 2023; 106:4257-4265. [PMID: 37028968 DOI: 10.3168/jds.2022-22362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 12/09/2022] [Indexed: 04/08/2023]
Abstract
In young calves on dairy farms the animal prevalence of extended-spectrum and AmpC β-lactamase-producing Escherichia coli (ESBL/AmpC-EC) is significantly higher compared with the animal prevalence in young stock and dairy cows. Hitherto it was unknown at what age antimicrobial resistant bacteria appear for the first time in the gut of calves on dairy farms, and how long these infections persist. The aim of this study was to examine the prevalence of ESBL/AmpC-EC, the number of excreted ESBL/AmpC-EC (in cfu/g of feces), as well as the ESBL/AmpC genotypes in young dairy calves (0-21 d of age) and the variation of these parameters between calves of different ages. Next to this, the course of shedding ESBL/AmpC-EC during the first year in dairy calves was studied. In a cross-sectional study, fecal samples from 748 calves, from 0 to 88 d of age, on 188 Dutch dairy farms were collected. The prevalence of calves testing positive for ESBL/AmpC-EC in a phenotypic assay was determined for different age categories (per 2 d of age). Positive samples were subjected to a semiquantitative test to determine the numbers of ESBL/AmpC-EC per gram of feces and for a selection of ESBL/AmpC-EC isolates the ESBL/AmpC genotype was determined. Ten of the 188 farms were selected for a longitudinal study based on the presence of at least 1 female calf with ESBL/Amp-EC in the cross-sectional study. These farms were additionally visited 3 times with a 4-mo interval. All calves that were sampled in the cross-sectional study were, if still present, resampled during the follow-up visits. Results show that from the day of birth ESBL/AmpC-EC can be present in the gut of calves. The phenotypic prevalence of ESBL/AmpC-EC was 33.3% in 0- to 21-d-old calves and 28.4% in 22- to 88-d-old calves. The prevalence of ESBL/AmpC-EC positive calves varied per age category among calves up to 21 d of age: significant increases and decreases at an early age were shown. Results of the longitudinal study show that after 4, 8, and 12 mo the prevalence of ESBL/AmpC-EC positive calves dropped to 3.8% (2/53), 5.8% (3/52), and 2.0% (1/49), respectively. This indicates that early gut colonization in young calves with ESBL/AmpC-EC is transient and does not lead to long-term shedding of these bacteria.
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Affiliation(s)
- M A Gonggrijp
- Royal GD, PO Box 9, 7400 AA Deventer, the Netherlands.
| | - A G J Velthuis
- Royal GD, PO Box 9, 7400 AA Deventer, the Netherlands; Aeres University of Applied Sciences, Postbus 374, 8250 AJ, Dronten, the Netherlands
| | - A E Heuvelink
- Royal GD, PO Box 9, 7400 AA Deventer, the Netherlands
| | | | | | - G J Buter
- Royal GD, PO Box 9, 7400 AA Deventer, the Netherlands
| | - G van Schaik
- Royal GD, PO Box 9, 7400 AA Deventer, the Netherlands; Department Population Health Sciences, Utrecht University, PO Box 80151, 3508 TD Utrecht, the Netherlands
| | - T J G M Lam
- Royal GD, PO Box 9, 7400 AA Deventer, the Netherlands; Department Population Health Sciences, Utrecht University, PO Box 80151, 3508 TD Utrecht, the Netherlands
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Vinayamohan PG, Locke SR, Portillo-Gonzalez R, Renaud DL, Habing GG. Antimicrobial Use and Resistance in Surplus Dairy Calf Production Systems. Microorganisms 2022; 10:1652. [PMID: 36014070 PMCID: PMC9413162 DOI: 10.3390/microorganisms10081652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/05/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
Surplus calves, which consist predominately of male calves born on dairy farms, are an underrecognized source of antimicrobial-resistant (AMR) pathogens. Current production systems for surplus calves have important risk factors for the dissemination of pathogens, including the high degree of commingling during auction and transportation and sometimes inadequate care early in life. These circumstances contribute to an increased risk of respiratory and other infectious diseases, resulting in higher antimicrobial use (AMU) and the development of AMR. Several studies have shown that surplus calves harbor AMR genes and pathogens that are resistant to critically important antimicrobials. This is a potential concern as the resistant pathogens and genes can be shared between animal, human and environmental microbiomes. Although knowledge of AMU and AMR has grown substantially in dairy and beef cattle systems, comparable studies in surplus calves have been mostly neglected in North America. Therefore, the overall goal of this narrative review is to summarize the existing literature regarding AMU and AMR in surplus dairy calf production, highlight the management practices contributing to the increased AMU and the resulting AMR, and discuss potential strategies and barriers for improved antimicrobial stewardship in surplus calf production systems.
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Affiliation(s)
- Poonam G. Vinayamohan
- Department of Veterinary Preventive Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Samantha R. Locke
- Department of Veterinary Preventive Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Rafael Portillo-Gonzalez
- Department of Veterinary Preventive Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - David L. Renaud
- Department of Population Medicine, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Gregory G. Habing
- Department of Veterinary Preventive Medicine, The Ohio State University, Columbus, OH 43210, USA
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Collis RM, Biggs PJ, Burgess SA, Midwinter AC, Brightwell G, Cookson AL. Prevalence and distribution of extended-spectrum β-lactamase and AmpC-producing Escherichia coli in two New Zealand dairy farm environments. Front Microbiol 2022; 13:960748. [PMID: 36033848 PMCID: PMC9403332 DOI: 10.3389/fmicb.2022.960748] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
Antimicrobial resistance (AMR) is a global threat to human and animal health, with the misuse and overuse of antimicrobials being suggested as the main driver of resistance. In a global context, New Zealand (NZ) is a relatively low user of antimicrobials in animal production. However, the role antimicrobial usage on pasture-based dairy farms, such as those in NZ, plays in driving the spread of AMR within the dairy farm environment remains equivocal. Culture-based methods were used to determine the prevalence and distribution of extended-spectrum β-lactamase (ESBL)- and AmpC-producing Escherichia coli from farm environmental samples collected over a 15-month period from two NZ dairy farms with contrasting management practices. Whole genome sequencing was utilised to understand the genomic epidemiology and antimicrobial resistance gene repertoire of a subset of third-generation cephalosporin resistant E. coli isolated in this study. There was a low sample level prevalence of ESBL-producing E. coli (faeces 1.7%; farm dairy effluent, 6.7% from Dairy 4 and none from Dairy 1) but AmpC-producing E. coli were more frequently isolated across both farms (faeces 3.3% and 8.3%; farm dairy effluent 38.4%, 6.7% from Dairy 1 and Dairy 4, respectively). ESBL- and AmpC-producing E. coli were isolated from faeces and farm dairy effluent in spring and summer, during months with varying levels of antimicrobial use, but no ESBL- or AmpC-producing E. coli were isolated from bulk tank milk or soil from recently grazed paddocks. Hybrid assemblies using short- and long-read sequence data from a subset of ESBL- and AmpC-producing E. coli enabled the assembly and annotation of nine plasmids from six E. coli, including one plasmid co-harbouring 12 antimicrobial resistance genes. ESBL-producing E. coli were infrequently identified from faeces and farm dairy effluent on the two NZ dairy farms, suggesting they are present at a low prevalence on these farms. Plasmids harbouring several antimicrobial resistance genes were identified, and bacteria carrying such plasmids are a concern for both animal and public health. AMR is a burden for human, animal and environmental health and requires a holistic “One Health” approach to address.
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Affiliation(s)
- Rose M. Collis
- The Hopkirk Research Institute, AgResearch Ltd., Massey University, Palmerston North, New Zealand
- EpiLab, School of Veterinary Science, Massey University, Palmerston North, New Zealand
- Rose M. Collis,
| | - Patrick J. Biggs
- EpiLab, School of Veterinary Science, Massey University, Palmerston North, New Zealand
- School of Natural Sciences, Massey University, Palmerston North, New Zealand
- New Zealand Food Safety Science and Research Centre, Massey University, Palmerston North, New Zealand
| | - Sara A. Burgess
- EpiLab, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Anne C. Midwinter
- EpiLab, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Gale Brightwell
- The Hopkirk Research Institute, AgResearch Ltd., Massey University, Palmerston North, New Zealand
- New Zealand Food Safety Science and Research Centre, Massey University, Palmerston North, New Zealand
| | - Adrian L. Cookson
- The Hopkirk Research Institute, AgResearch Ltd., Massey University, Palmerston North, New Zealand
- EpiLab, School of Veterinary Science, Massey University, Palmerston North, New Zealand
- *Correspondence: Adrian L. Cookson,
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Pattis I, Weaver L, Burgess S, Ussher JE, Dyet K. Antimicrobial Resistance in New Zealand-A One Health Perspective. Antibiotics (Basel) 2022; 11:antibiotics11060778. [PMID: 35740184 PMCID: PMC9220317 DOI: 10.3390/antibiotics11060778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/27/2022] [Accepted: 06/01/2022] [Indexed: 11/16/2022] Open
Abstract
Antimicrobial resistance (AMR) is an increasing global threat that affects human, animal and, often less acknowledged, environmental health. This complex issue requires a multisectoral One Health approach to address the interconnectedness of humans, animals and the natural environment. The prevalence of AMR in these reservoirs varies widely among countries and thus often requires a country-specific approach. In New Zealand (NZ), AMR and antimicrobial usage in humans are relatively well-monitored and -understood, with high human use of antimicrobials and the frequency of resistant pathogens increasing in hospitals and the community. In contrast, on average, NZ is a low user of antimicrobials in animal husbandry systems with low rates of AMR in food-producing animals. AMR in New Zealand’s environment is little understood, and the role of the natural environment in AMR transmission is unclear. Here, we aimed to provide a summary of the current knowledge on AMR in NZ, addressing all three components of the One Health triad with a particular focus on environmental AMR. We aimed to identify knowledge gaps to help develop research strategies, especially towards mitigating AMR in the environment, the often-neglected part of the One Health triad.
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Affiliation(s)
- Isabelle Pattis
- Institute of Environmental Science and Research Ltd., Christchurch 8041, New Zealand
| | - Louise Weaver
- Institute of Environmental Science and Research Ltd., Christchurch 8041, New Zealand
| | - Sara Burgess
- School of Veterinary Science, Massey University, Palmerston North 4442, New Zealand
| | - James E Ussher
- Department of Microbiology and Immunology, University of Otago, Dunedin 9054, New Zealand
| | - Kristin Dyet
- Institute of Environmental Science and Research Ltd., Porirua 5022, New Zealand
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Renaud D, Pardon B. Preparing Male Dairy Calves for the Veal and Dairy Beef Industry. Vet Clin North Am Food Anim Pract 2022; 38:77-92. [PMID: 35219487 DOI: 10.1016/j.cvfa.2021.11.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Surplus male dairy calves experience significant health challenges after arrival at the veal and dairy beef facilities. To curb these challenges, the engagement of multiple stakeholders is needed starting with improved care on some dairy farms and better management of transportation. Differing management strategies are also needed if calves arrive at veal and dairy beef facilities under poor condition.
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Affiliation(s)
- David Renaud
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada.
| | - Bart Pardon
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke 9820, Belgium
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Plasmid Replicon Diversity of Clinical Uropathogenic Escherichia coli Isolates from Riyadh, Saudi Arabia. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2022. [DOI: 10.22207/jpam.16.1.51] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The aim of this study was to identify and compare the plasmid replicons of clinical uropathogenic Escherichia coli (UPEC) isolates, involving extended spectrum β-lactamase (ESBL)-positive and ESBL-negative, E. coli ST131 and non-ST131 and various ST131 subclones. Plasmid replicon typing on 24 clinical UPEC isolates was carried out using polymerase chain reaction-based replicon typing. A statistical analysis was performed to assess the associations between plasmid replicon types and ESBL carriage, and to evaluate the link between ST131 isolates and high replicon carriage. Eight replicons, I1α, N2, Iγ, X1, FIIS, K, FIA, and FII were detected. The FII was the most common replicon identified here. ESBL-positive E. coli isolates were highly associated with I1α, N2, Iγ, X1, and FIIS replicons, while FIA was present only in ESBL-negative group. ST131 isolates were highly associated with I1α and N2 replicons compared to non-ST131. No link was found between replicon carriage and the number or type of ESBLs in E. coli isolates. The diversity observed in replicon patterns of our clinical E. coli isolates indicates that they might be originated from different sources. The presence of replicons reported previously in animal sources suggests a possible transfer of antimicrobial resistance between animal and human bacterial isolates.
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Interplay between Bacterial Clones and Plasmids in the Spread of Antibiotic Resistance Genes in the Gut: Lessons from a Temporal Study in Veal Calves. Appl Environ Microbiol 2021; 87:e0135821. [PMID: 34613750 DOI: 10.1128/aem.01358-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Intestinal carriage of extended spectrum β-lactamase (ESBL)-producing Escherichia coli is a frequent, increasing, and worrying phenomenon, but little is known about the molecular scenario and the evolutionary forces at play. We screened 45 veal calves, known to have high prevalence of carriage, for ESBL-producing E. coli on 514 rectal swabs (one randomly selected colony per sample) collected over 6 months. We characterized the bacterial clones and plasmids carrying blaESBL genes with a combination of genotyping methods, whole genome sequencing, and conjugation assays. One hundred and seventy-three ESBL-producing E. coli isolates [blaCTX-M-1 (64.7%), blaCTX-M-14 (33.5%), or blaCTX-M-15 (1.8%)] were detected, belonging to 32 bacterial clones, mostly of phylogroup A. Calves were colonized successively by different clones with a trend in decreasing carriage. The persistence of a clone in a farm was significantly associated with the number of calves colonized. Despite a high diversity of E. coli clones and blaCTX-M-carrying plasmids, few blaCTX-M gene/plasmid/chromosomal background combinations dominated, due to (i) efficient colonization of bacterial clones and/or (ii) successful plasmid spread in various bacterial clones. The scenario "clone versus plasmid spread" depended on the farm. Thus, epistatic interactions between resistance genes, plasmids, and bacterial clones contribute to optimize fitness in specific environments. IMPORTANCE The gut microbiota is the epicenter of the emergence of resistance. Considerable amount of knowledge on the molecular mechanisms of resistance has been accumulated, but the ecological and evolutionary forces at play in nature are less studied. In this context, we performed a field work on temporal intestinal carriage of extended spectrum β-lactamase (ESBL)-producing Escherichia coli in veal farms. Veal calves are animals with one of the highest levels of ESBL producing E. coli fecal carriage, due to early high antibiotic exposure. We were able to show that calves were colonized successively by different ESBL-producing E. coli clones, and that two main scenarios were at play in the spread of blaCTX-M genes among calves: efficient colonization of several calves by a few bacterial clones and successful plasmid spread in various bacterial clones. Such knowledge should help develop new strategies to fight the emergence of antibiotic-resistance.
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Burgess SA, Aplin J, Biggs PJ, Breckell G, Benschop J, Fayaz A, Toombs-Ruane LJ, Midwinter AC. Characterisation of AmpC and extended-spectrum beta-lactamase producing E. coli from New Zealand dairy farms. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2021.104998] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Adefioye OJ, Weinreich J, Rödiger S, Schierack P, Olowe OA. Phylogenetic Characterization and Multilocus Sequence Typing of Extended-Spectrum Beta Lactamase-Producing Escherichia coli from Food-Producing Animals, Beef, and Humans in Southwest Nigeria. Microb Drug Resist 2020; 27:111-120. [PMID: 32522073 DOI: 10.1089/mdr.2019.0397] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Multidrug-resistant extended-spectrum beta lactamase (ESBL)-producing Escherichia coli strains are emerging globally in both humans and animals. Antimicrobial susceptibility testing and ESBL screening were performed on pure cultures of 216 E. coli isolates from human and animal fecal samples as well as beef. Polymerase chain reaction was performed for the detection of resistance genes. Representative isolates of ESBL-producing E. coli were randomly selected for multilocus sequence typing and pulsed field gel electrophoresis (PFGE). Sixty of the isolates were identified as ESBL producers, and seven resistance genes were amplified in them: TEM (61.7%), blaCTX-M-15 (51.7%), AAC-6-LB (43.3%), blaCTX-M-1 (38.3%), blaCTX-M-9 (33.3%), blaCTX-M-2 (21.7%), and SHV (11.7%); they were classified into four phylogroups: A (25%), B1 (45%), B2 (20%), and D (10%). Thirty of these isolates were clustered into 10 sequence types with ST131 being mostly prevalent. Six PFGE types were discovered, each of which was shared by isolates from different subjects and had the same phylogroups and resistance gene profiles. There was a dissemination of PFGE types across various groups among humans, animals, and beef. This underlines the fact that the spread of ESBL E. coli could be from humans to animals, from animals to humans, as well as across animal species.
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Affiliation(s)
- Olusolabomi J Adefioye
- Department of Medical Microbiology and Parasitology, College of Health Sciences, Ladoke Akintola University of Technology, Osogbo, Nigeria
| | - Jörg Weinreich
- Faculty Environment and Natural Sciences, Brandenburg University of Technology Cottbus-Senftenberg, Senftenberg, Germany
| | - Stefan Rödiger
- Faculty Environment and Natural Sciences, Brandenburg University of Technology Cottbus-Senftenberg, Senftenberg, Germany
| | - Peter Schierack
- Faculty Environment and Natural Sciences, Brandenburg University of Technology Cottbus-Senftenberg, Senftenberg, Germany
| | - Olugbenga Adekunle Olowe
- Department of Medical Microbiology and Parasitology, College of Health Sciences, Ladoke Akintola University of Technology, Osogbo, Nigeria
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12
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Dantas Palmeira J, Ferreira HMN. Extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae in cattle production - a threat around the world. Heliyon 2020; 6:e03206. [PMID: 32042963 PMCID: PMC7002838 DOI: 10.1016/j.heliyon.2020.e03206] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/01/2019] [Accepted: 01/09/2020] [Indexed: 01/19/2023] Open
Abstract
Food producing animal is a global challenge in terms of antimicrobial resistance spread. Extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae are relevant opportunistic pathogens that may spread in many ecological niches of the One Health approach as human, animal and environment due to intestinal selection of antimicrobial resistant commensals in food production animals. Cattle production is a relevant ecological niche for selection of commensal bacteria with antimicrobial resistance from microbiota. Enterobacteriaceae show importance in terms of circulation of resistant-bacteria and antimicrobial resistance genes via food chain creating a resistance reservoir, setting up a threat for colonization of humans and consequent health risk. ESBL-producing Enterobacteriaceae are a threat in terms of human health responsible for life threatening outbreaks and silent enteric colonization of community populations namely the elder population. Food associated colonization is a risk difficult to handle and control. In a time of globalization of food trading, population intestinal colonization is a mirror of food production and in that sense this work aims to make a picture of ESBL-producing Enterobacteriaceae in animal production for food over the world in order to make some light in this reality of selection of resistant threats in food producing animal.
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Affiliation(s)
- Josman Dantas Palmeira
- Microbiology - Biological Sciences Department, Faculty of Pharmacy, University of Porto, Porto, Portugal.,UCIBIO - Research Unit on Applied Molecular Biosciences, REQUIMTE, Portugal
| | - Helena Maria Neto Ferreira
- Microbiology - Biological Sciences Department, Faculty of Pharmacy, University of Porto, Porto, Portugal.,UCIBIO - Research Unit on Applied Molecular Biosciences, REQUIMTE, Portugal
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13
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Rapid identification of respiratory bacterial pathogens from bronchoalveolar lavage fluid in cattle by MALDI-TOF MS. Sci Rep 2019; 9:18381. [PMID: 31804604 PMCID: PMC6895124 DOI: 10.1038/s41598-019-54599-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 11/18/2019] [Indexed: 02/07/2023] Open
Abstract
Respiratory tract infections are a major health problem and indication for antimicrobial use in cattle and in humans. Currently, most antimicrobial treatments are initiated without microbiological results, holding the risk of inappropriate first intention treatment. The main reason for this empirical treatment is the long turnaround time between sampling and availability of identification and susceptibility results. Therefore the objective of the present study was to develop a rapid identification procedure for pathogenic respiratory bacteria in bronchoalveolar lavage fluid (BALf) samples from cattle by MALDI-TOF MS, omitting the cultivation step on agar plates to reduce the turnaround time between sampling and identification of pathogens. The effects of two different liquid growth media and various concentrations of bacitracin were determined to allow optimal growth of Pasteurellaceae and minimise contamination. The best procedure was validated on 100 clinical BALf samples from cattle with conventional bacterial culture as reference test. A correct identification was obtained in 73% of the samples, with 59.1% sensitivity (Se) (47.2–71.0%) and 100% specificity (Sp) (100–100%) after only 6 hours of incubation. For pure and dominant culture samples, the procedure was able to correctly identify 79.2% of the pathogens, with a sensitivity (Se) of 60.5% (45.0–76.1%) and specificity (Sp) of 100% (100–100%). In mixed culture samples, containing ≥2 clinically relevant pathogens, one pathogen could be correctly identified in 57% of the samples with 57.1% Se (38.8–75.5%) and 100% Sp (100–100%). In conclusion, MALDI-TOF MS is a promising tool for rapid pathogen identification in BALf. This new technique drastically reduces turnaround time and may be a valuable decision support tool to rationalize antimicrobial use.
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14
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Awosile B, Reyes-Velez J, Cuesta-Astroz Y, Rodríguez-Lecompte JC, Saab ME, Heider LC, Keefe G, Sánchez J, McClure JT. Short communication: Whole-genome sequence analysis of 4 fecal bla CMY-2-producing Escherichia coli isolates from Holstein dairy calves. J Dairy Sci 2019; 103:877-883. [PMID: 31733866 DOI: 10.3168/jds.2019-16560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 09/13/2019] [Indexed: 12/15/2022]
Abstract
This study was carried out to determine the antimicrobial resistance (AMR) genes and mobile genetic elements of 4 fecal blaCMY-2-producing Escherichia coli isolated from Holstein dairy calves on the same farm using whole-genome sequencing. Genomic analysis revealed that 3 of the 4 isolates shared similar genetic features, including sequence type (ST), serotype, plasmid characteristics, insertion ST, and virulence genes. In addition to genes encoding for complex multidrug resistance efflux systems, all 4 isolates were carriers of genes conferring resistance to β-lactams (blaCMY-2, blaTEM-1B), tetracyclines (tetA, tetB, tetD), aminoglycosides [aadA1, aph(3")-lb, aph(6)-ld], sulfonamides (sul2), and trimethoprim (dfrA1). We also detected 4 incompatibility plasmid groups: Inc.F, Inc.N, Inc.I, and Inc.Q. A novel ST showing a new purA and mdh allelic combination was found. The 4 isolates were likely enterotoxigenic pathotypes of E. coli, based on serotype and presence of the plasmid Inc.FII(pCoo). This study provides information for comparative genomic analysis of AMR genes and mobile genetic elements. This analysis could give some explanation to the multidrug resistance characteristics of bacteria colonizing the intestinal tract of dairy calves in the first few weeks of life.
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Affiliation(s)
- Babafela Awosile
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada C1A 4P3.
| | - Julian Reyes-Velez
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada C1A 4P3; Tropical Medicine Colombian Institute, CES University, Sabaneta, Antioquia, Colombia
| | - Yesid Cuesta-Astroz
- Tropical Medicine Colombian Institute, CES University, Sabaneta, Antioquia, Colombia
| | - Juan Carlos Rodríguez-Lecompte
- Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada C1A 4P3
| | - Matthew E Saab
- Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada C1A 4P3; Diagnostic Services, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada C1A 4P3
| | - Luke C Heider
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada C1A 4P3
| | - Greg Keefe
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada C1A 4P3
| | - Javier Sánchez
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada C1A 4P3
| | - J Trenton McClure
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada C1A 4P3
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15
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Rozwandowicz M, Brouwer MSM, Fischer J, Wagenaar JA, Gonzalez-Zorn B, Guerra B, Mevius DJ, Hordijk J. Plasmids carrying antimicrobial resistance genes in Enterobacteriaceae. J Antimicrob Chemother 2019; 73:1121-1137. [PMID: 29370371 DOI: 10.1093/jac/dkx488] [Citation(s) in RCA: 522] [Impact Index Per Article: 104.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Bacterial antimicrobial resistance (AMR) is constantly evolving and horizontal gene transfer through plasmids plays a major role. The identification of plasmid characteristics and their association with different bacterial hosts provides crucial knowledge that is essential to understand the contribution of plasmids to the transmission of AMR determinants. Molecular identification of plasmid and strain genotypes elicits a distinction between spread of AMR genes by plasmids and dissemination of these genes by spread of bacterial clones. For this reason several methods are used to type the plasmids, e.g. PCR-based replicon typing (PBRT) or relaxase typing. Currently, there are 28 known plasmid types in Enterobacteriaceae distinguished by PBRT. Frequently reported plasmids [IncF, IncI, IncA/C, IncL (previously designated IncL/M), IncN and IncH] are the ones that bear the greatest variety of resistance genes. The purpose of this review is to provide an overview of all known AMR-related plasmid families in Enterobacteriaceae, the resistance genes they carry and their geographical distribution.
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Affiliation(s)
- M Rozwandowicz
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - M S M Brouwer
- Wageningen Bioveterinary Research, Lelystad, The Netherlands
| | - J Fischer
- Department of Biological Safety, Federal Institute for Risk Assessment, BfR, Berlin, Germany
| | - J A Wagenaar
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.,Wageningen Bioveterinary Research, Lelystad, The Netherlands
| | - B Gonzalez-Zorn
- Department of Animal Health and VISAVET, Complutense University of Madrid, Madrid, Spain
| | - B Guerra
- Department of Biological Safety, Federal Institute for Risk Assessment, BfR, Berlin, Germany
| | - D J Mevius
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.,Wageningen Bioveterinary Research, Lelystad, The Netherlands
| | - J Hordijk
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
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16
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Gay E, Bour M, Cazeau G, Jarrige N, Martineau C, Madec JY, Haenni M. Antimicrobial Usages and Antimicrobial Resistance in Commensal Escherichia coli From Veal Calves in France: Evolution During the Fattening Process. Front Microbiol 2019; 10:792. [PMID: 31031738 PMCID: PMC6473463 DOI: 10.3389/fmicb.2019.00792] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 03/27/2019] [Indexed: 11/13/2022] Open
Abstract
Extended-Spectrum-Cephalosporin (ESC)-resistant Enterobacteriaceae have widely spread in all settings worldwide. In animals, Extended-Spectrum Beta-Lactamase (ESBL) producers have been frequently identified in veal calves. The objectives of this study were to investigate the trends in the ESBL load and antimicrobial resistance (AMR) proportions, and antimicrobial usages (AMU) in veal calves during the fattening process. Ten fattening farms were selected and 50 animals per farm were sampled. AMR was assessed in bacteria from the dominant flora (collected on non-selective MacConckey agar) and in ESBL/AmpC-carrying bacteria from the subdominant flora (selected on ChromID ESBL selective plates) upon arrival and 5-6 months later before slaughter. The number and types of treatments during fattening were also collected. Rates of ESBL-producing E. coli from the subdominant flora significantly decreased in all farms (arrival: 67.7%; departure: 20.4%) whereas rates of multidrug-resistant E. coli from the dominant flora have significantly increased (arrival: 60.2%; departure: 67.2%; p = 0.025). CTX-M-1 was the most frequently identified ESBL enzyme (arrival: 59.3%; departure: 52.0%). The plasmid-mediated mcr-1 gene was also identified occasionally. In parallel, levels of resistances to non-critically important antimicrobials were already high upon arrival but have still further increased over time until slaughter. Our study also highlighted that if only ESBL-producing isolates were monitored, it might have led to a partial (and partly false) picture of AMR rates globally decreasing during the fattening period. The mean number of antimicrobial treatments per calf (NTPC) was 8.75 but no association between AMU and AMR was evidenced. Most ESBL producers were clonally unrelated suggesting multiple sources and not cross-contaminations among calves during transportation. Feeding milk containing antimicrobial residues to veal calves is hypothesized to explain the high ESBL loads in animals at the entrance on farms.
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Affiliation(s)
- Emilie Gay
- Université de Lyon - ANSES, Laboratoire de Lyon, Unité Épidémiologie et Appui à la Surveillance, Lyon, France
| | - Maxime Bour
- Université de Lyon - ANSES, Laboratoire de Lyon, Unité Antibiorésistance et Virulence Bactériennes, Lyon, France.,Centre National de Référence de la Résistance aux Antibiotiques, Centre Hospitalier Universitaire de Besançon, Besançon, France
| | - Géraldine Cazeau
- Université de Lyon - ANSES, Laboratoire de Lyon, Unité Épidémiologie et Appui à la Surveillance, Lyon, France
| | - Nathalie Jarrige
- Université de Lyon - ANSES, Laboratoire de Lyon, Unité Épidémiologie et Appui à la Surveillance, Lyon, France
| | | | - Jean-Yves Madec
- Université de Lyon - ANSES, Laboratoire de Lyon, Unité Antibiorésistance et Virulence Bactériennes, Lyon, France
| | - Marisa Haenni
- Université de Lyon - ANSES, Laboratoire de Lyon, Unité Antibiorésistance et Virulence Bactériennes, Lyon, France
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17
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Characterization of the first blaCTX-M-14/ermB-carrying IncI1 plasmid from Latin America. Plasmid 2019; 102:1-5. [DOI: 10.1016/j.plasmid.2019.02.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 01/14/2019] [Accepted: 02/01/2019] [Indexed: 11/19/2022]
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18
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Dorado-García A, Smid JH, van Pelt W, Bonten MJM, Fluit AC, van den Bunt G, Wagenaar JA, Hordijk J, Dierikx CM, Veldman KT, de Koeijer A, Dohmen W, Schmitt H, Liakopoulos A, Pacholewicz E, Lam TJGM, Velthuis AG, Heuvelink A, Gonggrijp MA, van Duijkeren E, van Hoek AHAM, de Roda Husman AM, Blaak H, Havelaar AH, Mevius DJ, Heederik DJJ. Molecular relatedness of ESBL/AmpC-producing Escherichia coli from humans, animals, food and the environment: a pooled analysis. J Antimicrob Chemother 2019; 73:339-347. [PMID: 29165596 DOI: 10.1093/jac/dkx397] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 09/27/2017] [Indexed: 11/13/2022] Open
Abstract
Background In recent years, ESBL/AmpC-producing Escherichia coli (ESBL/AmpC-EC) have been isolated with increasing frequency from animals, food, environmental sources and humans. With incomplete and scattered evidence, the contribution to the human carriage burden from these reservoirs remains unclear. Objectives To quantify molecular similarities between different reservoirs as a first step towards risk attribution. Methods Pooled data on ESBL/AmpC-EC isolates were recovered from 35 studies in the Netherlands comprising >27 000 samples, mostly obtained between 2005 and 2015. Frequency distributions of ESBL/AmpC genes from 5808 isolates and replicons of ESBL/AmpC-carrying plasmids from 812 isolates were compared across 22 reservoirs through proportional similarity indices (PSIs) and principal component analyses (PCAs). Results Predominant ESBL/AmpC genes were identified in each reservoir. PCAs and PSIs revealed close human-animal ESBL/AmpC gene similarity between human farming communities and their animals (broilers and pigs) (PSIs from 0.8 to 0.9). Isolates from people in the general population had higher similarities to those from human clinical settings, surface and sewage water and wild birds (0.7-0.8), while similarities to livestock or food reservoirs were lower (0.3-0.6). Based on rarefaction curves, people in the general population had more diversity in ESBL/AmpC genes and plasmid replicon types than those in other reservoirs. Conclusions Our 'One Health' approach provides an integrated evaluation of the molecular relatedness of ESBL/AmpC-EC from numerous sources. The analysis showed distinguishable ESBL/AmpC-EC transmission cycles in different hosts and failed to demonstrate a close epidemiological linkage of ESBL/AmpC genes and plasmid replicon types between livestock farms and people in the general population.
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Affiliation(s)
- Alejandro Dorado-García
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, PO Box 80175, 3508 TD Utrecht, The Netherlands.,Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, PO Box 80165, 3508 TD Utrecht, The Netherlands
| | - Joost H Smid
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, PO Box 80175, 3508 TD Utrecht, The Netherlands
| | - Wilfrid van Pelt
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, PO Box 1, 3720 BA Bilthoven, The Netherlands
| | - Marc J M Bonten
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, PO Box 1, 3720 BA Bilthoven, The Netherlands.,Department of Medical Microbiology, University Medical Centre Utrecht, PO Box 85500, 3508 GA Utrecht, The Netherlands
| | - Ad C Fluit
- Department of Medical Microbiology, University Medical Centre Utrecht, PO Box 85500, 3508 GA Utrecht, The Netherlands
| | - Gerrita van den Bunt
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, PO Box 1, 3720 BA Bilthoven, The Netherlands.,Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, PO Box 85500, 3508 GA Utrecht, The Netherlands
| | - Jaap A Wagenaar
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, PO Box 80165, 3508 TD Utrecht, The Netherlands
| | - Joost Hordijk
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, PO Box 80165, 3508 TD Utrecht, The Netherlands
| | - Cindy M Dierikx
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, PO Box 1, 3720 BA Bilthoven, The Netherlands
| | - Kees T Veldman
- Wageningen Bioveterinary Research, PO Box 65, 8200 AB Lelystad, The Netherlands
| | - Aline de Koeijer
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, PO Box 1, 3720 BA Bilthoven, The Netherlands.,Wageningen Bioveterinary Research, PO Box 65, 8200 AB Lelystad, The Netherlands
| | - Wietske Dohmen
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, PO Box 80175, 3508 TD Utrecht, The Netherlands
| | - Heike Schmitt
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, PO Box 80175, 3508 TD Utrecht, The Netherlands
| | | | - Ewa Pacholewicz
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, PO Box 80175, 3508 TD Utrecht, The Netherlands
| | - Theo J G M Lam
- GD Animal Health, PO Box 9, 7400 AA Deventer, The Netherlands
| | - Annet G Velthuis
- Wageningen Bioveterinary Research, PO Box 65, 8200 AB Lelystad, The Netherlands
| | - Annet Heuvelink
- GD Animal Health, PO Box 9, 7400 AA Deventer, The Netherlands
| | | | - Engeline van Duijkeren
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, PO Box 1, 3720 BA Bilthoven, The Netherlands
| | - Angela H A M van Hoek
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, PO Box 1, 3720 BA Bilthoven, The Netherlands
| | - Ana Maria de Roda Husman
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, PO Box 80175, 3508 TD Utrecht, The Netherlands.,Centre for Infectious Disease Control, National Institute for Public Health and the Environment, PO Box 1, 3720 BA Bilthoven, The Netherlands
| | - Hetty Blaak
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, PO Box 1, 3720 BA Bilthoven, The Netherlands
| | - Arie H Havelaar
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, PO Box 80175, 3508 TD Utrecht, The Netherlands.,Institute for Sustainable Food Systems, Emerging Pathogens Institute and Animal Sciences Department, University of Florida, PO Box 100009, Gainesville, FL 32610, USA
| | - Dik J Mevius
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, PO Box 80165, 3508 TD Utrecht, The Netherlands.,Wageningen Bioveterinary Research, PO Box 65, 8200 AB Lelystad, The Netherlands
| | - Dick J J Heederik
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, PO Box 80175, 3508 TD Utrecht, The Netherlands
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19
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Ceccarelli D, Kant A, van Essen-Zandbergen A, Dierikx C, Hordijk J, Wit B, Mevius DJ, Veldman KT. Diversity of Plasmids and Genes Encoding Resistance to Extended Spectrum Cephalosporins in Commensal Escherichia coli From Dutch Livestock in 2007-2017. Front Microbiol 2019; 10:76. [PMID: 30778339 PMCID: PMC6369715 DOI: 10.3389/fmicb.2019.00076] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 01/15/2019] [Indexed: 11/13/2022] Open
Abstract
Extended-spectrum β-lactamase (ESBL) and plasmid-mediated AmpC β-lactamase (pAmpC) genes confer resistance to extended spectrum cephalosporin’s. The spread of these genes is mostly facilitated by plasmid-mediated horizontal transfer. National surveillance activities to detect ESBL/pAmpC-producers in commensal bacteria from livestock are in place in the Netherlands since several years. This study aimed at reporting gene and plasmid diversity of commensal ESBL/pAmpC-producing Escherichia coli isolated from healthy animals during surveillance activities between 2007 and 2017. A collection of 2304 extended-spectrum cephalosporin-resistant (ESC-R) E. coli isolated from feces of broilers, dairy cattle, slaughter pigs, turkeys, ducks, and veal calves was investigated and ESBL/pAmpC genes were determined. Gene location of a selection of 473 E. coli isolates was determined and typing of plasmids linked to the ESBL/pAmpC genes was performed. Twenty-two different ESBL/pAmpC genes were identified with blaCTX-M-1 being the most prevalent gene in livestock (43.7%), followed by blaCMY -2 and blaSHV -12, independent of the animal source. Prevalence of typically human associated blaCTX-M-15 was highest in cattle. Less than 10% E. coli isolates owed their ESC-R phenotype to promoter mutations of the chromosomal ampC gene. Majority (92%) of ESBL/pAmpC genes analyzed were plasmid located, with IncI1α being the most represented plasmid family in isolates from all animals, followed by IncF (veal calves, dairy cattle and slaughter pigs), IncK (broilers and laying hens), IncX1 in broilers, and emerging IncX3 in broilers and dairy cattle. Prevalence and molecular diversity of ESC-R E. coli isolated from livestock over an 11-year period revealed a composite scenario of gene-plasmid combinations.
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Affiliation(s)
- Daniela Ceccarelli
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Lelystad, Netherlands
| | - Arie Kant
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Lelystad, Netherlands
| | | | - Cindy Dierikx
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Lelystad, Netherlands
| | - Joost Hordijk
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Lelystad, Netherlands
| | - Ben Wit
- Netherlands Food and Consumer Product Safety Authority (NVWA), Utrecht, Netherlands
| | - Dik J Mevius
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Lelystad, Netherlands.,Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Kees T Veldman
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Lelystad, Netherlands
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20
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Collis RM, Burgess SA, Biggs PJ, Midwinter AC, French NP, Toombs-Ruane L, Cookson AL. Extended-Spectrum Beta-Lactamase-Producing Enterobacteriaceae in Dairy Farm Environments: A New Zealand Perspective. Foodborne Pathog Dis 2018; 16:5-22. [PMID: 30418042 DOI: 10.1089/fpd.2018.2524] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Antimicrobial resistance (AMR) is a global issue for both human and animal health. Infections caused by antimicrobial-resistant bacteria present treatment option challenges and are often associated with heightened severity of infection. Antimicrobial use (AMU) in human and animal health is a main driver for the development of antimicrobial-resistant bacteria. Increasing levels of AMU and the development and spread of AMR in food-producing animals, especially in poultry and swine production, has been identified as a food safety risk, but dairy production systems have been less studied. A number of farm management practices may impact on animal disease and as a result can influence the use of antimicrobials and subsequently AMR prevalence. However, this relationship is multifactorial and complex. Several AMR transmission pathways between dairy cattle, the environment, and humans have been proposed, including contact with manure-contaminated pastures, direct contact, or through the food chain from contaminated animal-derived products. The World Health Organization has defined a priority list for selected bacterial pathogens of concern to human health according to 10 criteria relating to health and AMR. This list includes human pathogens such as the extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-E), which can be associated with dairy cattle, their environment, as well as animal-derived food products. ESBL-E represent a potential risk to human and animal health and an emerging food safety concern. This review addresses two areas; first, the current understanding of the role of dairy farming in the prevalence and spread of AMR is considered, highlighting research gaps using ESBL-E as an exemplar; and second, a New Zealand perspective is taken to examine how farm management practices may contribute to on-farm AMU and AMR in dairy cattle.
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Affiliation(s)
- Rose M Collis
- 1 AgResearch Ltd, Hopkirk Research Institute, Massey University, Palmerston North, New Zealand.,2 Molecular Epidemiology and Veterinary Public Health Laboratory (mEpiLab), Infectious Disease Research Centre, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Sara A Burgess
- 2 Molecular Epidemiology and Veterinary Public Health Laboratory (mEpiLab), Infectious Disease Research Centre, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Patrick J Biggs
- 2 Molecular Epidemiology and Veterinary Public Health Laboratory (mEpiLab), Infectious Disease Research Centre, School of Veterinary Science, Massey University, Palmerston North, New Zealand.,3 Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand. Massey University, Palmerston North, New Zealand.,4 New Zealand Food Safety Science and Research Centre, Massey University, Palmerston North, New Zealand
| | - Anne C Midwinter
- 2 Molecular Epidemiology and Veterinary Public Health Laboratory (mEpiLab), Infectious Disease Research Centre, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Nigel P French
- 2 Molecular Epidemiology and Veterinary Public Health Laboratory (mEpiLab), Infectious Disease Research Centre, School of Veterinary Science, Massey University, Palmerston North, New Zealand.,4 New Zealand Food Safety Science and Research Centre, Massey University, Palmerston North, New Zealand
| | - Leah Toombs-Ruane
- 2 Molecular Epidemiology and Veterinary Public Health Laboratory (mEpiLab), Infectious Disease Research Centre, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Adrian L Cookson
- 1 AgResearch Ltd, Hopkirk Research Institute, Massey University, Palmerston North, New Zealand.,2 Molecular Epidemiology and Veterinary Public Health Laboratory (mEpiLab), Infectious Disease Research Centre, School of Veterinary Science, Massey University, Palmerston North, New Zealand
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Taggar G, Rehman MA, Yin X, Lepp D, Ziebell K, Handyside P, Boerlin P, Diarra MS. Antimicrobial-Resistant E. coli from Surface Waters in Southwest Ontario Dairy Farms. JOURNAL OF ENVIRONMENTAL QUALITY 2018; 47:1068-1078. [PMID: 30272802 DOI: 10.2134/jeq2018.04.0139] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Untreated surface waters can be contaminated with a variety of bacteria, including , some of which can be pathogenic for both humans and animals. Therefore, such waters need to be treated before their use in dairy operations to mitigate risks to dairy cow health and milk safety. To understand the molecular ecology of , this study aimed to assess antimicrobial resistance (AMR) in recovered from untreated surface water sources of dairy farms. Untreated surface water samples ( = 240) from 15 dairy farms were collected and processed to isolate . A total of 234 isolates were obtained and further characterized for their serotypes and antimicrobial susceptibility. Of the 234 isolates, 71.4% were pan-susceptible, 23.5% were resistant to one or two antimicrobial classes, and 5.1% were resistant to three or more antimicrobial classes. Whole genome sequence analysis of 11 selected multidrug-resistant isolates revealed AMR genes including and that confer resistance to the critically important extended-spectrum cephalosporins, as well as a variety of plasmids (mainly of the replicon type) and class 1 integrons. Phylogenetic and comparative genome analysis revealed a genetic relationship between some of the sequenced and Shiga toxin-producing O157:H7 (STEC), which warrants further investigation. This study shows that untreated surface water sources contain antimicrobial-resistant which may serve as a reservoir of AMR that could be disseminated through horizontal gene transfer. This is another reason why effective water treatment before usage should be routinely done on dairy farm operations.
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Abstract
Preharvest food safety research and activities have advanced over time with the recognition of the importance and complicated nature of the preharvest phase of food production. In developed nations, implementation of preharvest food safety procedures along with strict monitoring and containment at various postharvest stages such as slaughter, processing, storage, and distribution have remarkably reduced the burden of foodborne pathogens in humans. Early detection and adequate surveillance of pathogens at the preharvest stage is of the utmost importance to ensure a safe meat supply. There is an urgent need to develop rapid, cost-effective, and point-of-care diagnostics which could be used at the preharvest stage and would complement postmortem and other quality checks performed at the postharvest stage. With newer methods and technologies, more efforts need to be directed toward developing rapid, sensitive, and specific methods for detection or screening of foodborne pathogens at the preharvest stage. In this review, we will discuss the molecular methods available for detection and molecular typing of bacterial foodborne pathogens at the farm. Such methods include conventional techniques such as endpoint PCR, real-time PCR, DNA microarray, and more advanced techniques such as matrix-assisted layer desorption ionization-time of flight mass spectrometry and whole-genome sequencing.
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23
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Diab M, Hamze M, Madec JY, Haenni M. High Prevalence of Non-ST131 CTX-M-15-ProducingEscherichia coliin Healthy Cattle in Lebanon. Microb Drug Resist 2017; 23:261-266. [DOI: 10.1089/mdr.2016.0019] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Mohamad Diab
- Laboratoire Microbiologie Santé et Environnement (LMSE), Ecole Doctorale en Sciences et Technologies, Faculté de Santé Publique, Université Libanaise, Tripoli, Liban
- Unité Antibiorésistance et Virulence Bactériennes, ANSES Site de Lyon, Lyon, France
| | - Monzer Hamze
- Laboratoire Microbiologie Santé et Environnement (LMSE), Ecole Doctorale en Sciences et Technologies, Faculté de Santé Publique, Université Libanaise, Tripoli, Liban
- Faculté de Sante Publique, Université Libanaise, Tripoli, Liban
| | - Jean-Yves Madec
- Unité Antibiorésistance et Virulence Bactériennes, ANSES Site de Lyon, Lyon, France
| | - Marisa Haenni
- Unité Antibiorésistance et Virulence Bactériennes, ANSES Site de Lyon, Lyon, France
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Plasmids of Distinct IncK Lineages Show Compatible Phenotypes. Antimicrob Agents Chemother 2017; 61:AAC.01954-16. [PMID: 28052854 PMCID: PMC5328535 DOI: 10.1128/aac.01954-16] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 12/20/2016] [Indexed: 12/25/2022] Open
Abstract
IncK plasmids are some of the main carriers of blaCTX-M-14 and blaCMY-2 genes and show high similarity to other plasmids belonging to the I complex, including IncB/O plasmids. Here, we studied the phylogenetic relationship of 37 newly sequenced IncK and IncB/O plasmids. We show that IncK plasmids can be divided into two compatible lineages named IncK1 and IncK2.
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25
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Pardon B, Smet A, Butaye P, Argudín MA, Valgaeren B, Catry B, Haesebrouck F, Deprez P. Nosocomial Intravascular Catheter Infections with Extended-spectrum Beta-lactamase-producing Escherichia coli in Calves after Strain Introduction from a Commercial Herd. Transbound Emerg Dis 2017; 64:130-136. [PMID: 25903854 PMCID: PMC7169822 DOI: 10.1111/tbed.12352] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Indexed: 12/29/2022]
Abstract
An outbreak of intravascular catheter-related infections by extended-spectrum β-lactamase (ESBL)-producing Escherichia coli in calves in an animal teaching hospital is reported. Pulsed-field gel electrophoresis was used for strain typing to determine the origin and dissemination of these strains. All 19 strains harboured the blaCTX-M-14, and six strains also overexpressed their chromosomal AmpC gene. Evidence on the introduction of the strain from a beef herd, experiencing neonatal diarrhoea and increased mortality, to the clinic through admission of diarrhoeic calves was provided. Strains isolated from phlebitis cases from other herds up to 5 months later showed a high similarity with the initial strain, suggesting that the strain had become nosocomial. The catheter infections with ESBL/AmpC-producing E. coli resulted in a prolonged hospitalization, increased anti-microbial use and mortality. This report points towards the potential dangers of the emergence of ESBL/AmpC-producing bacteria in susceptible food animals and warns farmers and veterinarians for the facility by which they are introduced into another environment.
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Affiliation(s)
- B Pardon
- Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - A Smet
- Department of Bacteriology, Pathology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - P Butaye
- Department of Bacteriology, Pathology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
- Department of Bacteriology and Immunology, CODA-CERVA-VAR, Brussels, Belgium
| | - M A Argudín
- Department of Bacteriology and Immunology, CODA-CERVA-VAR, Brussels, Belgium
| | - B Valgaeren
- Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - B Catry
- Health Care Associated Infections and Antimicrobial Resistance, Scientific Institute of Public Health (WIV-ISP), Brussels, Belgium
| | - F Haesebrouck
- Department of Bacteriology, Pathology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - P Deprez
- Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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Chromosome-Based blaOXA-48-Like Variants in Shewanella Species Isolates from Food-Producing Animals, Fish, and the Aquatic Environment. Antimicrob Agents Chemother 2017; 61:AAC.01013-16. [PMID: 27855066 DOI: 10.1128/aac.01013-16] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 11/03/2016] [Indexed: 01/23/2023] Open
Abstract
Carbapenems are considered last-resort antibiotics in health care. Increasing reports of carbapenemase-producing bacteria in food-producing animals and in the environment indicate the importance of this phenomenon in public health. Surveillance for carbapenemase genes and carbapenemase-producing bacteria in Dutch food-producing animals, environmental freshwater, and imported ornamental fish revealed several chromosome-based blaOXA-48-like variants in Shewanella spp., including two new alleles, blaOXA-514 and blaOXA-515 Carbapenemase genes were not associated with mobile genetic elements or Enterobacteriaceae.
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27
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Medaney F, Ellis RJ, Raymond B. Ecological and genetic determinants of plasmid distribution inEscherichia coli. Environ Microbiol 2016; 18:4230-4239. [DOI: 10.1111/1462-2920.13552] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 08/19/2016] [Accepted: 09/26/2016] [Indexed: 01/07/2023]
Affiliation(s)
- Frances Medaney
- School of Biological Science; Royal Holloway University of London; Egham Surrey TW20 0EX UK
| | - Richard J. Ellis
- Specialist Scientific Support Department; Animal and Plant Health Agency, APHA Weybridge, Addlestone; Surrey KT15 3NB UK
| | - Ben Raymond
- School of Biological Science; Royal Holloway University of London; Egham Surrey TW20 0EX UK
- University of Exeter, Penryn Campus; Penryn Cornwall TR10 9FE UK
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Dupouy V, Doublet B, Arpaillange N, Praud K, Bibbal D, Brugère H, Oswald E, Cloeckaert A, Toutain PL, Bousquet-Mélou A. Dominant plasmids carrying extended-spectrum β-lactamases bla CTX-M genes in genetically diverse Escherichia coli from slaughterhouse and urban wastewaters. ENVIRONMENTAL MICROBIOLOGY REPORTS 2016; 8:789-797. [PMID: 27402421 DOI: 10.1111/1758-2229.12440] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Wastewater treatment plants (WWTP) receiving effluents from food-producing animals and humans may contribute to the spread of extended-spectrum β-lactamases (ESBL)-carrying plasmids. This study was designed to investigate extended-spectrum cephalosporin resistant Escherichia coli strains, CTX-M distributions and the genetic lineage of blaCTX-M -carrying plasmids from urban and slaughterhouse wastewaters. The level of extended-spectrum cephalosporin-resistant E. coli in slaughterhouse wastewater entering the WWTP was negligible compared with that of urban wastewater. The blaCTX-M-1 gene was predominant in slaughterhouse wastewater whereas diverse blaCTX-M genes were encountered in urban wastewater and WWTP outlet. Characterization of the main CTX-M-producing E. coli isolates by antibiotic resistance phenotyping, genotyping and typing of plasmids carrying blaCTX-M genes revealed that blaCTX-M-1 and blaCTX-M-15 genes were harboured by the predominant blaCTX-M-1 IncI1/ST3 and blaCTX-M-15 F31:A4:B1 plasmids, which were recovered from unrelated E. coli genotypes in both slaughterhouse and urban wastewaters. This study highlighted the spread of predominant blaCTX-M-1 and blaCTX-M-15 plasmid lineages in diverse E. coli genotypes from humans and food-producing animals, their mixing in WWTP and final release into the aquatic environment. This could have a serious negative impact on public health and requires further evaluation.
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Affiliation(s)
- Véronique Dupouy
- Toxalim, Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Benoît Doublet
- UMR1282 Infectiologie et Santé Publique, INRA, Nouzilly, F-37380, France
- UMR1282 Infectiologie et Santé Publique, Université François Rabelais de Tours, Tours, F-37000, France
| | | | - Karine Praud
- UMR1282 Infectiologie et Santé Publique, INRA, Nouzilly, F-37380, France
- UMR1282 Infectiologie et Santé Publique, Université François Rabelais de Tours, Tours, F-37000, France
| | - Delphine Bibbal
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | - Hubert Brugère
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | - Eric Oswald
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
- CHU de Toulouse, Hôpital Purpan, Toulouse, France
| | - Axel Cloeckaert
- UMR1282 Infectiologie et Santé Publique, INRA, Nouzilly, F-37380, France
- UMR1282 Infectiologie et Santé Publique, Université François Rabelais de Tours, Tours, F-37000, France
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Souverein D, Euser SM, Herpers BL, Diederen B, Houtman P, van Seventer M, van Ess I, Kluytmans J, Rossen JWA, Den Boer JW. Prevalence, risk factors and molecular epidemiology of highly resistant gram negative rods in hospitalized patients in the Dutch region Kennemerland. Antimicrob Resist Infect Control 2016; 5:8. [PMID: 26962447 PMCID: PMC4784298 DOI: 10.1186/s13756-016-0107-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 03/03/2016] [Indexed: 11/29/2022] Open
Abstract
Background This paper describes (1) the Highly Resistant Gram Negative Rod (HR-GNR) prevalence rate, (2) their genotypes, acquired resistance genes and (3) associated risk factors of HR-GNR colonization among the hospitalized population in the Dutch region Kennemerland. Methods Between 1 October 2013 and 31 March 2014, cross-sectional prevalence measurements were performed in three regional hospitals as part of each hospitals infection control program. Rectal swabs were analyzed at the Regional Public Health Laboratory Kennemerland by direct culturing. Genotypes and acquired resistance genes of positive isolates were determined using Whole Genome Sequencing with the MiSeq instrument (Illumina). Association between several independent variables and HR-GNR positivity was examined using logistic regression models. Results Out of 427 patients, 24 HR-GNR positive isolates were recovered from 22 patients, resulting in a regional HR-GNR colonization prevalence (95 % CI) of 5.2 % (3.6–7.9). Of these 22 positive patients, 15 were Extended Spectrum Beta-Lactamase (ESBL) positive (3.5 % (2.1–5.7)), 7 patients were positive for a Fluoroquinolones and Aminoglycosides (Q&A) resistant Enterobacteriaceae (1.6 % (0.8–3.3)) and from one patient (0.2 % (0–1.3)) a Stenotrophomonas maltophilia resistant towards co-trimoxazole was isolated. No carbapenemase producing Enterobacteriaceae (CPE), multi-resistant Acinetobacter species or multi-resistant Pseudomonas aeruginosa were isolated. The ESBL genes found were blaCTX-M-1 (n = 4, 25.0 %), blaCTX-M-15 (n = 3, 18.8 %), blaCTX-M-27 (n = 2, 12.5 %), blaCTX-M-14b (n = 2, 12.5 %), blaCTX-M-9 (n = 2, 12.5 %), blaCTX-M-14 (n = 1, 6.3 %), blaCTX-M-3 (n = 1, 6.3 %), blaSHV-11 (n = 1, 6.3 %) and blaSHV-12 (n = 1, 6.3 %). Being known HR-GNR positive in the past was the only significant associated risk factor for HR-GNR positivity, odds ratio (95 % CI): 7.32 (1.82–29.35), p-value = 0.005. Conclusions Similar ESBL prevalence rates and genotypes (3.5 %) were found in comparison to other Dutch studies. When previously HR-GNR positive patients are readmitted, they should be screened for HR-GNR colonization since colonization with GR-GNRs could be prolonged. We recommend for future studies to include all defined HR-GNRs in addition to ESBLs in prevalence studies, in order to obtain a more comprehensive overview of colonization with HR-GNRs.
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Affiliation(s)
- Dennis Souverein
- Department of Epidemiology and Infection Prevention, Regional Public Health Laboratory Kennemerland, Boerhaavelaan 26, 2035 RC Haarlem, The Netherlands
| | - Sjoerd M Euser
- Department of Epidemiology and Infection Prevention, Regional Public Health Laboratory Kennemerland, Boerhaavelaan 26, 2035 RC Haarlem, The Netherlands
| | - Bjorn L Herpers
- Department of Epidemiology and Infection Prevention, Regional Public Health Laboratory Kennemerland, Boerhaavelaan 26, 2035 RC Haarlem, The Netherlands
| | - Bram Diederen
- Department of Epidemiology and Infection Prevention, Regional Public Health Laboratory Kennemerland, Boerhaavelaan 26, 2035 RC Haarlem, The Netherlands
| | - Patricia Houtman
- Department of Infection Prevention, Spaarne Gasthuis, Haarlem, The Netherlands
| | - Marina van Seventer
- Department of Infection Prevention, Spaarne Gasthuis, Haarlem, The Netherlands
| | - Ingeborg van Ess
- Department of Infection Prevention, Rode Kruis Ziekenhuis, Beverwijk, The Netherlands
| | - Jan Kluytmans
- Laboratory for Microbiology and Infection Control, Amphia Hospital, Breda, and University Medical Center, Utrecht, The Netherlands
| | - John W A Rossen
- Department of Medical Microbiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jeroen W Den Boer
- Department of Epidemiology and Infection Prevention, Regional Public Health Laboratory Kennemerland, Boerhaavelaan 26, 2035 RC Haarlem, The Netherlands
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Michael GB, Freitag C, Wendlandt S, Eidam C, Feßler AT, Lopes GV, Kadlec K, Schwarz S. Emerging issues in antimicrobial resistance of bacteria from food-producing animals. Future Microbiol 2016; 10:427-43. [PMID: 25812464 DOI: 10.2217/fmb.14.93] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
During the last decade, antimicrobial resistance in bacteria from food-producing animals has become a major research topic. In this review, different emerging resistance properties related to bacteria of food-producing animals are highlighted. These include: extended-spectrum β-lactamase-producing Enterobacteriaceae; carbapenemase-producing bacteria; bovine respiratory tract pathogens, such as Pasteurella multocida and Mannheimia haemolytica, which harbor the multiresistance mediating integrative and conjugative element ICEPmu1; Gram-positive and Gram-negative bacteria that carry the multiresistance gene cfr; and the occurrence of numerous novel antimicrobial resistance genes in livestock-associated methicillin-resistant Staphylococcus aureus. The emergence of the aforementioned resistance properties is mainly based on the exchange of mobile genetic elements that carry the respective resistance genes.
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31
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Oikonomou O, Liakopoulos A, Phee LM, Betts J, Mevius D, Wareham DW. Providencia stuartii Isolates from Greece: Co-Carriage of Cephalosporin (blaSHV-5, blaVEB-1), Carbapenem (blaVIM-1), and Aminoglycoside (rmtB) Resistance Determinants by a Multidrug-Resistant Outbreak Clone. Microb Drug Resist 2016; 22:379-86. [PMID: 27380549 DOI: 10.1089/mdr.2015.0215] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Providencia stuartii has emerged as an important nosocomial pathogen. We describe an outbreak due to a multidrug-resistant strain over a 4-month period in a critical care unit in Athens. Molecular typing revealed each of the isolates to be clonally related with coresistance to cephalosporins, carbapenems, aminoglycosides, and quinolones. Each isolate contained a 220-kb multi-replicon (IncA/C and IncR) conjugative plasmid encoding TEM-1, SHV-5, VEB-1, and VIM-1 β-lactamases and the 16S rDNA methylase RmtB. Antimicrobial therapy was unsuccessful in 3 of 6 cases, and resistance was readily transmissible to susceptible strains of Escherichia coli by transformation and conjugation. This highlights the clinical importance of P. stuartii and its ability to disseminate critical resistance determinants to other bacterial pathogens.
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Affiliation(s)
- Olga Oikonomou
- 1 Antimicrobial Research Group, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University London , London, United Kingdom
| | - Apostolos Liakopoulos
- 2 Department of Bacteriology and TSEs, Central Veterinary Institute, Wageningen University , Lelystad, the Netherlands
| | - Lynette M Phee
- 1 Antimicrobial Research Group, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University London , London, United Kingdom
| | - Jonathan Betts
- 1 Antimicrobial Research Group, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University London , London, United Kingdom
| | - Dik Mevius
- 2 Department of Bacteriology and TSEs, Central Veterinary Institute, Wageningen University , Lelystad, the Netherlands
| | - David W Wareham
- 1 Antimicrobial Research Group, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University London , London, United Kingdom
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van Hoek AHAM, Schouls L, van Santen MG, Florijn A, de Greeff SC, van Duijkeren E. Molecular characteristics of extended-spectrum cephalosporin-resistant Enterobacteriaceae from humans in the community. PLoS One 2015; 10:e0129085. [PMID: 26029910 PMCID: PMC4451282 DOI: 10.1371/journal.pone.0129085] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 05/04/2015] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To investigate the molecular characteristics of extended-spectrum cephalosporin (ESC)-resistant Enterobacteriaceae collected during a cross-sectional study examining the prevalence and risk factors for faecal carriage of extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae in humans living in areas with high or low broiler density. METHODS ESC-resistant Enterobacteriaceae were identified by combination disc-diffusion test. ESBL/AmpC/carbapenemase genes were analysed using PCR and sequencing. For E. coli, phylogenetic groups and MLST were determined. Plasmids were characterized by transformation and PCR-based replicon typing. Subtyping of plasmids was done by plasmid multilocus sequence typing. RESULTS 175 ESC-resistant Enterobacteriaceae were cultured from 165/1,033 individuals. The isolates were Escherichia coli(n=65), Citrobacter freundii (n=52), Enterobacter cloacae (n=38), Morganella morganii (n=5), Enterobacter aerogenes (n=4), Klebsiella pneumoniae (n=3), Hafnia alvei (n=2), Shigella spp. (n=2), Citrobacter amalonaticus (n=1), Escherichia hermannii (n=1), Kluyvera cryocrescens (n=1), and Pantoea agglomerans (n=1). The following ESBL genes were recovered in 55 isolates originating from 49 of 1,033 (4.7 %) persons: blaCTX-M-1 (n=17), blaCTX-M-15 (n=16), blaCTX-M-14 (n=9), blaCTX-M-2 (n=3), blaCTX-M-3 (n=2), blaCTX-M-24 (n=2), blaCTX-M-27 (n=1), blaCTX-M-32 (n=1), blaSHV-12 (n=2), blaSHV-65 (n=1) and blaTEM-52 (n=1). Plasmidic AmpC (pAmpC) genes were discovered in 6 out of 1,033 (0.6 %) persons. One person carried two different E. coli isolates, one with blaCTX-M-1 and the other with blaCMY-2 and therefore the prevalence of persons carrying Enterobacteriaceae harboring ESBL and/or pAmpC genes was 5.2 %. In eight E. coli isolates the AmpC phenotype was caused by mutations in the AmpC promoter region. No carbapenemase genes were identified. A large variety of E. coli genotypes was found, ST131 and ST10 being most common. CONCLUSIONS ESBL/pAmpC genes resembled those from patients in Dutch hospitals, indicating that healthy humans form a reservoir for transmission of these determinants to vulnerable people. The role of poultry in the transmission to humans in the community remains to be elucidated.
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Affiliation(s)
- Angela H. A. M. van Hoek
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Leo Schouls
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Marga G. van Santen
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Alice Florijn
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Sabine C. de Greeff
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Engeline van Duijkeren
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
- * E-mail:
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33
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Anjum MF. Screening methods for the detection of antimicrobial resistance genes present in bacterial isolates and the microbiota. Future Microbiol 2015; 10:317-20. [DOI: 10.2217/fmb.15.2] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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34
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Huijbers PMC, Graat EAM, Haenen APJ, van Santen MG, van Essen-Zandbergen A, Mevius DJ, van Duijkeren E, van Hoek AHAM. Extended-spectrum and AmpC β-lactamase-producing Escherichia coli in broilers and people living and/or working on broiler farms: prevalence, risk factors and molecular characteristics. J Antimicrob Chemother 2014; 69:2669-75. [PMID: 24879667 DOI: 10.1093/jac/dku178] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES The objectives of this study were to: estimate the prevalence of extended-spectrum β-lactamase (ESBL)- and AmpC β-lactamase-producing Escherichia coli carriage among broiler farmers, their family members and employees; identify and quantify risk factors for carriage, with an emphasis on contact with live broilers; and compare isolates from humans and broilers within farms with respect to molecular characteristics to gain insight into transmission routes. METHODS A cross-sectional prevalence study was conducted on 50 randomly selected Dutch broiler farms. Cloacal swabs were taken from 20 randomly chosen broilers. Faecal swabs were returned by 141 individuals living and/or working on 47 farms. ESBL/AmpC-producing E. coli were isolated and, for selected isolates, phylogenetic groups, plasmids and sequence types were determined. Questionnaires were used for risk factor analysis. RESULTS All sampled farms were positive, with 96.4% positive pooled broiler samples. The human prevalence was 19.1%, with 14.3% and 27.1% among individuals having a low and a high degree of contact with live broilers, respectively. Five pairs of human-broiler isolates had identical genes, plasmid families and E. coli sequence types, showing clonal transmission. Furthermore, similar ESBL/AmpC genes on the same plasmid families in different E. coli sequence types in humans and broilers hinted at horizontal gene transfer. CONCLUSIONS The prevalence among people on broiler farms was higher than in previous studies involving patients and the general population. Furthermore, an increased risk of carriage was shown among individuals having a high degree of contact with live broilers. The (relative) contribution of transmission routes that might play a role in the dissemination of ESBL/AmpC-encoding resistance genes to humans on broiler farms should be pursued in future studies.
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Affiliation(s)
- P M C Huijbers
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands Quantitative Veterinary Epidemiology Group, Wageningen Institute of Animal Sciences (WIAS), Wageningen University, Wageningen, The Netherlands
| | - E A M Graat
- Quantitative Veterinary Epidemiology Group, Wageningen Institute of Animal Sciences (WIAS), Wageningen University, Wageningen, The Netherlands
| | - A P J Haenen
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - M G van Santen
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - A van Essen-Zandbergen
- Department of Bacteriology and TSEs, Central Veterinary Institute (CVI) of Wageningen UR, Lelystad, The Netherlands
| | - D J Mevius
- Department of Bacteriology and TSEs, Central Veterinary Institute (CVI) of Wageningen UR, Lelystad, The Netherlands Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - E van Duijkeren
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - A H A M van Hoek
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
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Enterobacteriaceae resistant to third-generation cephalosporins and quinolones in fresh culinary herbs imported from Southeast Asia. Int J Food Microbiol 2014; 177:72-7. [DOI: 10.1016/j.ijfoodmicro.2014.02.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 02/07/2014] [Accepted: 02/18/2014] [Indexed: 01/08/2023]
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Haenni M, Châtre P, Métayer V, Bour M, Signol E, Madec JY, Gay E. Comparative prevalence and characterization of ESBL-producing Enterobacteriaceae in dominant versus subdominant enteric flora in veal calves at slaughterhouse, France. Vet Microbiol 2014; 171:321-7. [PMID: 24629776 DOI: 10.1016/j.vetmic.2014.02.023] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 02/11/2014] [Accepted: 02/14/2014] [Indexed: 11/29/2022]
Abstract
Food-producing animals have become a growing reservoir of Extended-Spectrum Beta-Lactamase (ESBL)-producing bacteria. In cattle, veal calves are exposed to high amounts of antibiotics but ESBL prevalence data are still limited compared to other food sectors such as poultry production. Based on the investigation of 491 veal calves from different slaughtering batches at 12 abattoirs, this study shows a prevalence of 29.4% of ESBL producers in the faecal flora of veal calves in France in 2012. A variety of blaCTX-M genes was found, reflecting possible diverse pathways of dissemination in cattle. Another major conclusion is the comparison of the ESBL prevalence in the dominant versus sub-dominant Escherichia coli population of the same calves (1% and 29.4%, respectively). Also, the ESBL E. coli clones in the sub-dominant flora mostly differed from the non-ESBL dominant E. coli clones of the same calves. Of note, the distribution of blaCTX-M genes and E. coli phylogroups were similar to the ones previously found in ESBL E. coli clones from diseased calves. The hypothesis that ESBL genes may distribute more abundantly in certain backgrounds of E. coli was also discussed. In all, as recently reported in the Netherlands, these results strongly suggest a recent increase in the prevalence of ESBL carriage in French veal calves, which should be considered one of the major ESBL reservoirs in food animals.
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Affiliation(s)
- Marisa Haenni
- Unité Antibiorésistance et Virulence Bactériennes, ANSES Site de Lyon, 31 avenue Tony Garnier, 69364 Lyon, France.
| | - Pierre Châtre
- Unité Antibiorésistance et Virulence Bactériennes, ANSES Site de Lyon, 31 avenue Tony Garnier, 69364 Lyon, France
| | - Véronique Métayer
- Unité Antibiorésistance et Virulence Bactériennes, ANSES Site de Lyon, 31 avenue Tony Garnier, 69364 Lyon, France
| | - Maxime Bour
- Unité Antibiorésistance et Virulence Bactériennes, ANSES Site de Lyon, 31 avenue Tony Garnier, 69364 Lyon, France
| | - Elodie Signol
- Unité Antibiorésistance et Virulence Bactériennes, ANSES Site de Lyon, 31 avenue Tony Garnier, 69364 Lyon, France
| | - Jean-Yves Madec
- Unité Antibiorésistance et Virulence Bactériennes, ANSES Site de Lyon, 31 avenue Tony Garnier, 69364 Lyon, France
| | - Emilie Gay
- Unité Epidémiologie, ANSES Site de Lyon, 31 avenue Tony Garnier, 69364 Lyon, France
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Characteristics of cefotaxime-resistant Escherichia coli from wild birds in the Netherlands. Appl Environ Microbiol 2013; 79:7556-61. [PMID: 24038683 DOI: 10.1128/aem.01880-13] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Cloacal swabs from carcasses of Dutch wild birds obtained in 2010 and 2011 were selectively cultured on media with cefotaxime to screen for the presence of extended-spectrum β-lactamase (ESBL)/AmpC-producing Escherichia coli. Subsequently, all cefotaxime-resistant E. coli isolates were tested by broth microdilution and microarray. The presence of ESBL/AmpC and coexisting plasmid-mediated quinolone resistance (PMQR) genes was confirmed by PCR and sequencing. To determine the size of plasmids and the location of ESBL and PMQR genes, S1 pulsed-field gel electrophoresis (PFGE) was performed on transformants, followed by Southern blot hybridization. The study included 414 cloacal swabs originating from 55 different bird species. Cefotaxime-resistant E. coli isolates were identified in 65 birds (15.7%) from 21 different species. In all, 65 cefotaxime-resistant E. coli ESBL/AmpC genes were detected, mainly comprising variants of blaCTX-M and blaCMY-2. Furthermore, PMQR genes [aac(6')-lb-cr, qnrB1, and qnrS1] coincided in seven cefotaxime-resistant E. coli isolates. Overall, replicon typing of the ESBL/AmpC-carrying plasmids demonstrated the predominant presence of IncI1 (n = 31) and variants of IncF (n = 18). Our results indicate a wide dissemination of ESBL and AmpC genes in wild birds from The Netherlands, especially among aquatic-associated species (waterfowl, gulls, and waders). The identified genes and plasmids reflect the genes found predominantly in livestock animals as well as in humans.
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Hordijk J, Schoormans A, Kwakernaak M, Duim B, Broens E, Dierikx C, Mevius D, Wagenaar JA. High prevalence of fecal carriage of extended spectrum β-lactamase/AmpC-producing Enterobacteriaceae in cats and dogs. Front Microbiol 2013; 4:242. [PMID: 23966992 PMCID: PMC3745002 DOI: 10.3389/fmicb.2013.00242] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 08/01/2013] [Indexed: 11/16/2022] Open
Abstract
Extended-spectrum-β-lactamase (ESBL)/AmpC producing Enterobacteriaceae have been reported worldwide amongst isolates obtained from humans, food-producing animals, companion animals, and environmental sources. However, data on prevalence of fecal carriage of ESBL/AmpC producing Enterobacteriaceae in healthy companion animals is limited. This pilot study describes the prevalence of ESBL/AmpC encoding genes in healthy cats and dogs, and cats and dogs with diarrhea. Twenty fecal samples of each group were cultured on MacConkey agar supplemented with 1 mg/L cefotaxime and in LB-enrichment broth supplemented with 1 mg/L cefotaxime, which was subsequently inoculated on MacConkey agar supplemented with 1 mg/L cefotaxime. ESBL/AmpC genes were identified using the Check-Points CT103 micro array kit and subsequently by sequencing analysis. Chromosomal ampC promoter mutations were detected by PCR and sequencing analysis. From the healthy and diarrheic dogs, respectively 45 and 55% were positive for Escherichia coli with reduced susceptibility for cefotaxime. From the healthy and diarrheic cats, the estimated prevalence was respectively 0 and 25%. One diarrheic cat was positive for both reduced susceptible E.coli and Proteus mirabilis. The ESBL/AmpC genes found in this study were mainly blaCTX-M-1, but also blaCTX-M-14, blaCTX-M-15, blaTEM-52-StPaul, blaSHV-12, and blaCMY-2 were detected. This pilot study showed that the prevalence of ESBL/AmpC producing Enterobacteriaceae in healthy and diarrheic dogs, and diarrheic cats was relatively high. Furthermore, the genes found were similar to those found in isolates of both human and food-producing animal origin. However, since the size of this study was relatively small, extrapolation of the data to the general population of cats and dogs should be done with great care.
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Affiliation(s)
- Joost Hordijk
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University Utrecht, Netherlands
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