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Nobrega DB, Tang KL, Caffrey NP, De Buck J, Cork SC, Ronksley PE, Polachek AJ, Ganshorn H, Sharma N, Kastelic JP, Kellner JD, Ghali WA, Barkema HW. Prevalence of antimicrobial resistance genes and its association with restricted antimicrobial use in food-producing animals: a systematic review and meta-analysis. J Antimicrob Chemother 2021; 76:561-575. [PMID: 33146719 DOI: 10.1093/jac/dkaa443] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 09/28/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND There is ongoing debate regarding potential associations between restrictions of antimicrobial use and prevalence of antimicrobial resistance (AMR) in bacteria. OBJECTIVES To summarize the effects of interventions reducing antimicrobial use in food-producing animals on the prevalence of AMR genes (ARGs) in bacteria from animals and humans. METHODS We published a full systematic review of restrictions of antimicrobials in food-producing animals and their associations with AMR in bacteria. Herein, we focus on studies reporting on the association between restricted antimicrobial use and prevalence of ARGs. We used multilevel mixed-effects models and a semi-quantitative approach based on forest plots to summarize findings from studies. RESULTS A positive effect of intervention [reduction in prevalence or number of ARGs in group(s) with restricted antimicrobial use] was reported from 29 studies for at least one ARG. We detected significant associations between a ban on avoparcin and diminished presence of the vanA gene in samples from animals and humans, whereas for the mecA gene, studies agreed on a positive effect of intervention in samples only from animals. Comparisons involving mcr-1, blaCTX-M, aadA2, vat(E), sul2, dfrA5, dfrA13, tet(E) and tet(P) indicated a reduced prevalence of genes in intervention groups. Conversely, no effects were detected for β-lactamases other than blaCTX-M and the remaining tet genes. CONCLUSIONS The available body of scientific evidence supported that restricted use of antimicrobials in food animals was associated with an either lower or equal presence of ARGs in bacteria, with effects dependent on ARG, host species and restricted drug.
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Affiliation(s)
- Diego B Nobrega
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada.,Mastitis Network, Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, QC, Canada
| | - Karen L Tang
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Niamh P Caffrey
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Jeroen De Buck
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Susan C Cork
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Paul E Ronksley
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Alicia J Polachek
- W21C Research and Innovation Centre, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Heather Ganshorn
- Libraries and Cultural Resources, University of Calgary, Calgary, AB, Canada
| | - Nishan Sharma
- W21C Research and Innovation Centre, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - John P Kastelic
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - James D Kellner
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - William A Ghali
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Herman W Barkema
- Mastitis Network, Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, QC, Canada.,Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada.,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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2
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Rao S, Linke L, Doster E, Hyatt D, Burgess BA, Magnuson R, Pabilonia KL, Morley PS. Genomic diversity of class I integrons from antimicrobial resistant strains of Salmonella Typhimurium isolated from livestock, poultry and humans. PLoS One 2020; 15:e0243477. [PMID: 33306723 PMCID: PMC7732114 DOI: 10.1371/journal.pone.0243477] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 11/21/2020] [Indexed: 12/16/2022] Open
Abstract
Introduction Multidrug resistance (MDR) is a serious issue prevalent in various agriculture-related foodborne pathogens including Salmonella enterica (S. enterica) Typhimurium. Class I integrons have been detected in Salmonella spp. strains isolated from food producing animals and humans and likely play a critical role in transmitting antimicrobial resistance within and between livestock and human populations. Objective The main objective of our study was to characterize class I integron presence to identify possible integron diversity among and between antimicrobial resistant Salmonella Typhimurium isolates from various host species, including humans, cattle, swine, and poultry. Methods An association between integron presence with multidrug resistance was evaluated. One hundred and eighty-three S. Typhimurium isolates were tested for antimicrobial resistance (AMR). Class I integrons were detected and sequenced. Similarity of AMR patterns between host species was also studied within each integron type. Results One hundred seventy-four (95.1%) of 183 S.Typhimurium isolates were resistant to at least one antimicrobial and 82 (44.8%) were resistant to 5 or more antimicrobials. The majority of isolates resistant to at least one antimicrobial was from humans (45.9%), followed by swine (19.1%) and then bovine (16.9%) isolates; poultry showed the lowest number (13.1%) of resistant isolates. Our study has demonstrated high occurrence of class I integrons in S. Typhimurium across different host species. Only one integron size was detected in poultry isolates. There was a significant association between integron presence of any size and specific multidrug resistance pattern among the isolates from human, bovine and swine. Conclusions Our study has demonstrated a high occurrence of class I integrons of different sizes in Salmonella Typhimurium across various host species and their association with multidrug resistance. This demonstration indicates that multidrug resistant Salmonella Typhimurium is of significant public health occurrence and reflects on the importance of judicious use of antimicrobials among livestock and poultry.
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Affiliation(s)
- Sangeeta Rao
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, CO, United States of America
- * E-mail:
| | - Lyndsey Linke
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, CO, United States of America
| | - Enrique Doster
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, MN, United States of America
- Veterinary Education, Research, and Outreach Program, Texas A&M University and West Texas A&M University, College Station, TX, United States of America
| | - Doreene Hyatt
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States of America
| | - Brandy A. Burgess
- College of Veterinary Medicine, University of Georgia, Athens, GA, United States of America
| | - Roberta Magnuson
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, CO, United States of America
| | - Kristy L. Pabilonia
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, CO, United States of America
| | - Paul S. Morley
- Veterinary Education, Research, and Outreach Program, Texas A&M University and West Texas A&M University, College Station, TX, United States of America
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3
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Barlow RS, McMillan KE, Duffy LL, Fegan N, Jordan D, Mellor GE, Jenson I. Antimicrobial susceptibility of bacteria from healthy cattle and sheep at slaughter. Aust Vet J 2019; 97:285-287. [PMID: 31209870 DOI: 10.1111/avj.12837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 04/23/2019] [Accepted: 05/08/2019] [Indexed: 11/27/2022]
Affiliation(s)
- R S Barlow
- CSIRO Agriculture & Food, Coopers Plains, Queensland, 4108, Australia
| | - K E McMillan
- CSIRO Agriculture & Food, Coopers Plains, Queensland, 4108, Australia
| | - L L Duffy
- CSIRO Agriculture & Food, Coopers Plains, Queensland, 4108, Australia
| | - N Fegan
- CSIRO Agriculture & Food, Coopers Plains, Queensland, 4108, Australia
| | - D Jordan
- New South Wales Department of Primary Industries, NSW, Australia
| | - G E Mellor
- CSIRO Agriculture & Food, Coopers Plains, Queensland, 4108, Australia
| | - I Jenson
- Meat & Livestock Australia, North Sydney, NSW, Australia
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4
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DI H, Liang S, Li Q, Shi L, Shima A, Meng H, Yan H, Yamasaki S. Providencia in retail meats from Guangzhou, China and Osaka, Japan: prevalence, antimicrobial resistance and characterization of classes 1, 2 and 3 integrons. J Vet Med Sci 2018; 80:829-835. [PMID: 29553069 PMCID: PMC5989031 DOI: 10.1292/jvms.18-0037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Bacteria of the genus Providencia are opportunistic pathogens of clinical significance due to their association with diarrhea and urinary tract infections. The present
study was conducted to examine the prevalence and antimicrobial resistance of Providencia spp. in retail meats sold in Guangzhou, China and Osaka, Japan. Out of 158 meat
samples including beef, pork and chicken, 67 Providencia (42%) belonging to four species viz., P. alcalifaciens, P.
rustigianii, P. stuartii and P. rettgeri were isolated, and most of them were resistant to tetracycline (91%) followed by ampicillin
(69%) and streptomycin (49%). Of 67 isolates, 29 (43%) were MDR, which is defined to be resistant to more than three classes of antimicrobials. No statistically significant differences were
observed between Chinese and Japanese retail meat samples regarding contamination rate of Providencia spp. as well as frequency of the antimicrobial resistance of the
isolates including MDR. Class 1 and/or class 2 integrons were detected in six of the eight isolates that were resistant to more than 4 antimicrobials, however none of the isolates harbored
class 3 integron. A P. rustigianii harboring the blaOXA-10 gene was isolated, which is the first report of Providencia with
blaOXA-10 gene of food origin. These data suggest that retail meats in China and Japan are substantially contaminated with Providencia spp.,
which displayed a high frequency of antimicrobial resistance, and establishing the surveillance of Providencia spp., especially antimicrobial resistant one, in retail meats
is imperative.
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Affiliation(s)
- Huiling DI
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.,Research Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, China.,Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 598-8531, Japan
| | - Sisi Liang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Qingyang Li
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Lei Shi
- Research Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, China.,State Key Laboratory of Food Safety Technology for Meat Products, Xiamen Yinxiang Group Co., Ltd., Xiamen 361100, China
| | - Ayaka Shima
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 598-8531, Japan
| | - Hecheng Meng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - He Yan
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Shinji Yamasaki
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 598-8531, Japan
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5
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Chen CM, Ke SC, Li CR, Wu YC, Chen TH, Lai CH, Wu XX, Wu LT. High Diversity of Antimicrobial Resistance Genes, Class 1 Integrons, and Genotypes of Multidrug-ResistantEscherichia coliin Beef Carcasses. Microb Drug Resist 2017; 23:915-924. [DOI: 10.1089/mdr.2016.0223] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- Chih-Ming Chen
- Department of Health Food, Chung Chou University of Science and Technology, Changhua, Taiwan
- Department of Internal Medicine, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan
| | - Se-Chin Ke
- Infection Control Office, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan
| | - Chia-Ru Li
- Department of Medical Research, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan
| | - Ying-Chen Wu
- Graduate Institute of Veterinary Pathology, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Ter-Hsin Chen
- Graduate Institute of Veterinary Pathology, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Chih-Ho Lai
- Institute of Basic Medical Science, School of Medicine, China Medical University and Hospital, Taichung, Taiwan
- Department of Microbiology and Immunology, Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
- Department of Nursing, Asia University, Taichung, Taiwan
| | - Xin-Xia Wu
- Department of Microbiology, The Institute of Medical Science, China Medical University Hospital, Taichung, Taiwan
| | - Lii-Tzu Wu
- Department of Microbiology, The Institute of Medical Science, China Medical University Hospital, Taichung, Taiwan
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6
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Chainier D, Barraud O, Masson G, Couve-Deacon E, François B, Couquet CY, Ploy MC. Integron Digestive Carriage in Human and Cattle: A "One Health" Cultivation-Independent Approach. Front Microbiol 2017; 8:1891. [PMID: 29021787 PMCID: PMC5624303 DOI: 10.3389/fmicb.2017.01891] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 09/15/2017] [Indexed: 01/14/2023] Open
Abstract
Objectives: Dissemination of antimicrobial resistance (AMR) is a global issue that requires the adoption of a "One-Health" approach promoting integration of human and animal health. Besides culture-dependent techniques frequently used for AMR surveillance, cultivation-independent methods can give additional insights into the diversity and reservoir of AMR genetic determinants. Integrons are molecular markers that can provide overall and reliable estimation of AMR dissemination. In this study, considering the "One-Health" approach, we have analyzed the integron digestive carriage from stools of humans and cattle living in a same area and exposed to different antibiotic selection pressures. Methods: Three collections of human [general population (GP) and intensive care unit patients (ICUs)] and bovine (BOV) stool samples were analyzed. The three main classes of integrons were detected using a multiplex qPCR both from total DNA extracted from stools, and from Gram-negative bacteria obtained by culture after an enrichment step. Results: With the cultivation-independent approach, integron carriage was 43.8, 52.7, and 65.6% for GP, ICU, and BOV respectively, percentages being at least twofold higher to those obtained with the cultivation-dependent approach. Class 1 integrons were the most prevalent; class 2 integrons seemed more associated to cattle than to humans; no class 3 integron was detected. The integron carriage was not significantly different between GP and ICU populations according to the antibiotic consumption, whatever the approach. Conclusion: The cultivation-independent approach constitutes a complementary exploratory method to investigate the integron digestive carriage of humans and bovines, notably within subjects under antibiotic treatment. The high frequency of carriage of integrons in the gut is of clinical significance, integrons being able to easily acquire and exchange resistant genes under antibiotic selective pressure and so leading to the dissemination of resistant bacteria.
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Affiliation(s)
| | - Olivier Barraud
- INSERM, CHU Limoges, UMR 1092, Université Limoges, Limoges, France
| | - Geoffrey Masson
- INSERM, CHU Limoges, UMR 1092, Université Limoges, Limoges, France
| | | | - Bruno François
- INSERM, CHU Limoges, UMR 1092, Université Limoges, Limoges, France.,INSERM, CIC1435, CHU Limoges, Limoges, France
| | - Claude-Yves Couquet
- Laboratoire Départemental d'Analyses et de Recherches de la Haute-Vienne, Limoges, France
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7
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Noyes NR, Yang X, Linke LM, Magnuson RJ, Cook SR, Zaheer R, Yang H, Woerner DR, Geornaras I, McArt JA, Gow SP, Ruiz J, Jones KL, Boucher CA, McAllister TA, Belk KE, Morley PS. Characterization of the resistome in manure, soil and wastewater from dairy and beef production systems. Sci Rep 2016; 6:24645. [PMID: 27095377 PMCID: PMC4837390 DOI: 10.1038/srep24645] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 04/04/2016] [Indexed: 11/08/2022] Open
Abstract
It has been proposed that livestock production effluents such as wastewater, airborne dust and manure increase the density of antimicrobial resistant bacteria and genes in the environment. The public health risk posed by this proposed outcome has been difficult to quantify using traditional microbiological approaches. We utilized shotgun metagenomics to provide a first description of the resistome of North American dairy and beef production effluents, and identify factors that significantly impact this resistome. We identified 34 mechanisms of antimicrobial drug resistance within 34 soil, manure and wastewater samples from feedlot, ranch and dairy operations. The majority of resistance-associated sequences found in all samples belonged to tetracycline resistance mechanisms. We found that the ranch samples contained significantly fewer resistance mechanisms than dairy and feedlot samples, and that the resistome of dairy operations differed significantly from that of feedlots. The resistome in soil, manure and wastewater differed, suggesting that management of these effluents should be tailored appropriately. By providing a baseline of the cattle production waste resistome, this study represents a solid foundation for future efforts to characterize and quantify the public health risk posed by livestock effluents.
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Affiliation(s)
- Noelle R. Noyes
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Xiang Yang
- Department of Animal Sciences, College of Agricultural Sciences, Colorado State University, Fort Collins, CO, USA
| | - Lyndsey M. Linke
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Roberta J. Magnuson
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Shaun R. Cook
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB, Canada
| | - Rahat Zaheer
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB, Canada
| | - Hua Yang
- Department of Animal Sciences, College of Agricultural Sciences, Colorado State University, Fort Collins, CO, USA
| | - Dale R. Woerner
- Department of Animal Sciences, College of Agricultural Sciences, Colorado State University, Fort Collins, CO, USA
| | - Ifigenia Geornaras
- Department of Animal Sciences, College of Agricultural Sciences, Colorado State University, Fort Collins, CO, USA
| | - Jessica A. McArt
- Department of Population Medicine & Diagnostic Sciences, Cornell University, Ithaca, NY, USA
| | - Sheryl P. Gow
- Centre for Food-borne, Environmental Zoonotic Infectious Diseases, Public Health Agency of Canada, University of Saskatoon, Saskatchewan, Canada
| | - Jaime Ruiz
- Department of Computer Sciences, College of Natural Sciences, Colorado State University, Fort Collins, CO, USA
| | - Kenneth L. Jones
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Colorado, Denver, CO, USA
| | - Christina A. Boucher
- Department of Computer Sciences, College of Natural Sciences, Colorado State University, Fort Collins, CO, USA
| | - Tim A. McAllister
- Agriculture and Agri-Food Canada Research Centre, Lethbridge, AB, Canada
| | - Keith E. Belk
- Department of Animal Sciences, College of Agricultural Sciences, Colorado State University, Fort Collins, CO, USA
| | - Paul S. Morley
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
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8
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Um MM, Barraud O, Kérourédan M, Gaschet M, Stalder T, Oswald E, Dagot C, Ploy MC, Brugère H, Bibbal D. Comparison of the incidence of pathogenic and antibiotic-resistant Escherichia coli strains in adult cattle and veal calf slaughterhouse effluents highlighted different risks for public health. WATER RESEARCH 2016; 88:30-38. [PMID: 26460853 DOI: 10.1016/j.watres.2015.09.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 09/09/2015] [Accepted: 09/15/2015] [Indexed: 06/05/2023]
Abstract
The goal of this study was to investigate the involvement of bovine slaughterhouse effluents and biosolids in the risk of environmental dissemination of pathogenic and antibiotic-resistant Escherichia coli. Several samples were collected from one adult cattle and one veal calf slaughterhouse wastewater treatment plant (WWTP). The treatment process had no impact on the percentage of Shiga toxin-producing E. coli (STEC) and on the percentage of atypical enteropathogenic E. coli (aEPEC). A STEC O157:H7 was isolated from the thickened sludge of the adult cattle slaughterhouse. As thickened sludge is intended to be spread on agricultural lands, the detection of this pathogenic strain is a public health issue. The percentage of antibiotic-resistant E. coli was 5.0% and 87.5% in wastewater from the adult cattle and the veal calf slaughterhouse, respectively. These percentages were not significantly different after treatment. Integron-bearing E. coli isolates were only detected in the veal calf slaughterhouse WWTP with percentages above 50.0% for all sampling points whatever the step of the treatment process. Taken together, these findings highlighted the fact that different public health risks might be associated with adult cattle or veal calf slaughterhouses regarding the dissemination of pathogenic and antibiotic-resistant E. coli isolates into the environment.
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Affiliation(s)
- Maryse Michèle Um
- INSERM UMR1043, INRA USC1360, INP-ENVT, Université de Toulouse, Toulouse, France
| | - Olivier Barraud
- Université de Limoges, UMR1092, Limoges, France; INSERM, UMR1092, Limoges, France; CHU Limoges, laboratoire de Bactériologie-Virologie-Hygiène, Limoges, France
| | - Monique Kérourédan
- INSERM UMR1043, INRA USC1360, INP-ENVT, Université de Toulouse, Toulouse, France
| | - Margaux Gaschet
- Université de Limoges, UMR1092, Limoges, France; INSERM, UMR1092, Limoges, France; CHU Limoges, laboratoire de Bactériologie-Virologie-Hygiène, Limoges, France
| | | | - Eric Oswald
- INSERM UMR1043, INRA USC1360, CHU de Toulouse, Hôpital Purpan, Toulouse, France
| | | | - Marie-Cecile Ploy
- Université de Limoges, UMR1092, Limoges, France; INSERM, UMR1092, Limoges, France; CHU Limoges, laboratoire de Bactériologie-Virologie-Hygiène, Limoges, France
| | - Hubert Brugère
- INSERM UMR1043, INRA USC1360, INP-ENVT, Université de Toulouse, Toulouse, France
| | - Delphine Bibbal
- INSERM UMR1043, INRA USC1360, INP-ENVT, Université de Toulouse, Toulouse, France.
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9
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Power ML, Emery S, Gillings MR. Into the wild: dissemination of antibiotic resistance determinants via a species recovery program. PLoS One 2013; 8:e63017. [PMID: 23717399 PMCID: PMC3661720 DOI: 10.1371/journal.pone.0063017] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 03/27/2013] [Indexed: 11/18/2022] Open
Abstract
Management strategies associated with captive breeding of endangered species can establish opportunities for transfer of pathogens and genetic elements between human and animal microbiomes. The class 1 integron is a mobile genetic element associated with clinical antibiotic resistance in gram-negative bacteria. We examined the gut microbiota of endangered brush-tail rock wallabies Petrogale penicillata to determine if they carried class 1 integrons. No integrons were detected in 65 animals from five wild populations. In contrast, class 1 integrons were detected in 48% of fecal samples from captive wallabies. The integrons contained diverse cassette arrays that encoded resistance to streptomycin, spectinomycin, and trimethoprim. Evidence suggested that captive wallabies had acquired typical class 1 integrons on a number of independent occasions, and had done so in the absence of strong selection afforded by antibiotic therapy. Sufficient numbers of bacteria containing diverse class 1 integrons must have been present in the general environment occupied by the wallabies to account for this acquisition. The captive wallabies have now been released, in an attempt to bolster wild populations of the species. Consequently, they can potentially spread resistance integrons into wild wallabies and into new environments. This finding highlights the potential for genes and pathogens from human sources to be acquired during captive breeding and to be unwittingly spread to other populations.
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Affiliation(s)
- Michelle L Power
- Department of Biological Sciences, Macquarie University, North Ryde, NSW, Australia.
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10
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Rizzo L, Manaia C, Merlin C, Schwartz T, Dagot C, Ploy MC, Michael I, Fatta-Kassinos D. Urban wastewater treatment plants as hotspots for antibiotic resistant bacteria and genes spread into the environment: a review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 447:345-60. [PMID: 23396083 DOI: 10.1016/j.scitotenv.2013.01.032] [Citation(s) in RCA: 1259] [Impact Index Per Article: 114.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 01/08/2013] [Accepted: 01/08/2013] [Indexed: 05/20/2023]
Abstract
Urban wastewater treatment plants (UWTPs) are among the main sources of antibiotics' release into the environment. The occurrence of antibiotics may promote the selection of antibiotic resistance genes (ARGs) and antibiotic resistant bacteria (ARB), which shade health risks to humans and animals. In this paper the fate of ARB and ARGs in UWTPs, focusing on different processes/technologies (i.e., biological processes, advanced treatment technologies and disinfection), was critically reviewed. The mechanisms by which biological processes influence the development/selection of ARB and ARGs transfer are still poorly understood. Advanced treatment technologies and disinfection process are regarded as a major tool to control the spread of ARB into the environment. In spite of intense efforts made over the last years to bring solutions to control antibiotic resistance spread in the environment, there are still important gaps to fill in. In particular, it is important to: (i) improve risk assessment studies in order to allow accurate estimates about the maximal abundance of ARB in UWTPs effluents that would not pose risks for human and environmental health; (ii) understand the factors and mechanisms that drive antibiotic resistance maintenance and selection in wastewater habitats. The final objective is to implement wastewater treatment technologies capable of assuring the production of UWTPs effluents with an acceptable level of ARB.
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Affiliation(s)
- L Rizzo
- Department of Civil Engineering, University of Salerno, 84084, Fisciano (SA), Italy.
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11
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Iyer A, Barbour E, Azhar E, Salabi AAE, Hassan HMA, Qadri I, Chaudhary A, Abuzenadah A, Kumosani T, Damanhouri G, Alawi M, Na’was T, Nour AMA, Harakeh S. Transposable elements in <i>Escherichia coli</i> antimicrobial resistance. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/abb.2013.43a055] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Stalder T, Barraud O, Casellas M, Dagot C, Ploy MC. Integron involvement in environmental spread of antibiotic resistance. Front Microbiol 2012; 3:119. [PMID: 22509175 PMCID: PMC3321497 DOI: 10.3389/fmicb.2012.00119] [Citation(s) in RCA: 233] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Accepted: 03/13/2012] [Indexed: 11/13/2022] Open
Abstract
The spread of antibiotic-resistant bacteria is a growing problem and a public health issue. In recent decades, various genetic mechanisms involved in the spread of resistance genes among bacteria have been identified. Integrons - genetic elements that acquire, exchange, and express genes embedded within gene cassettes (GC) - are one of these mechanisms. Integrons are widely distributed, especially in Gram-negative bacteria; they are carried by mobile genetic elements, plasmids, and transposons, which promote their spread within bacterial communities. Initially studied mainly in the clinical setting for their involvement in antibiotic resistance, their role in the environment is now an increasing focus of attention. The aim of this review is to provide an in-depth analysis of recent studies of antibiotic-resistance integrons in the environment, highlighting their potential involvement in antibiotic-resistance outside the clinical context. We will focus particularly on the impact of human activities (agriculture, industries, wastewater treatment, etc.).
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Wu R, Alexander T, Li J, Munns K, Sharma R, McAllister T. Prevalence and diversity of class 1 integrons and resistance genes in antimicrobial-resistant Escherichia coli originating from beef cattle administered subtherapeutic antimicrobials. J Appl Microbiol 2011; 111:511-23. [DOI: 10.1111/j.1365-2672.2011.05066.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Stokes HW, Gillings MR. Gene flow, mobile genetic elements and the recruitment of antibiotic resistance genes into Gram-negative pathogens. FEMS Microbiol Rev 2011; 35:790-819. [PMID: 21517914 DOI: 10.1111/j.1574-6976.2011.00273.x] [Citation(s) in RCA: 372] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Antibiotics were one of the great discoveries of the 20th century. However, resistance appeared even in the earliest years of the antibiotic era. Antibiotic resistance continues to become worse, despite the ever-increasing resources devoted to combat the problem. One of the most important factors in the development of resistance to antibiotics is the remarkable ability of bacteria to share genetic resources via Lateral Gene Transfer (LGT). LGT occurs on a global scale, such that in theory, any gene in any organism anywhere in the microbial biosphere might be mobilized and spread. With sufficiently strong selection, any gene may spread to a point where it establishes a global presence. From an antibiotic resistance perspective, this means that a resistance phenotype can appear in a diverse range of infections around the globe nearly simultaneously. We discuss the forces and agents that make this LGT possible and argue that the problem of resistance can ultimately only be managed by understanding the problem from a broad ecological and evolutionary perspective. We also argue that human activities are exacerbating the problem by increasing the tempo of LGT and bacterial evolution for many traits that are important to humans.
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Affiliation(s)
- Hatch W Stokes
- The i3 Institute, University of Technology, Broadway 2007, Sydney, NSW, Australia.
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Povilonis J, Šeputienė V, Ružauskas M, Šiugždinienė R, Virgailis M, Pavilonis A, Sužiedėlienė E. Transferable class 1 and 2 integrons in Escherichia coli and Salmonella enterica isolates of human and animal origin in Lithuania. Foodborne Pathog Dis 2010; 7:1185-92. [PMID: 20578916 DOI: 10.1089/fpd.2010.0536] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Antibiotic-resistant Escherichia coli (n = 191) and Salmonella enterica (n = 87) isolates of human and animal origin obtained in Lithuania during 2005-2008 were characterized for the presence and diversity of class 1 and 2 integrons. E. coli isolates were obtained from patients with urinary tract infections (UTIs) (n = 59) and both healthy and diseased farm animals, including poultry (n = 54), swine (n = 35), and cattle (n = 43). Isolates of non-typhoidal S. enterica were recovered from salmonellosis patients (n = 37) and healthy animals, including poultry (n = 31) and swine (n = 19). The presence of integrons, their gene cassette structure, and genome location were investigated by polymerase chain reaction, restriction fragment-length polymorphism, DNA sequencing, Southern blot hybridization, and conjugation experiments. Forty percent of the E. coli and 11% of the S. enterica isolates carried class 1 integrons, whereas class 2 integrons were found in E. coli isolates (9%) only. The incidence of integrons in human UTIs and cattle isolates was most frequent (p < 0.01). A total of 23 different gene cassettes within 15 different variable regions were observed. Seven different integron types, all of them transferable by conjugation, were common for isolates from human infections and for one or more groups of animal isolates. The most prevalent integron types contained arrays dfrA1-aadA1 (36%), dfrA17-aadA5 (23%), and dfrA1-sat1-aadA1 (78%). Two E. coli isolates from humans with UTIs harbored class 1 integron on conjugative plasmid with the novel array type of 4800 bp/dfrA17-aadA5Δ-IS26-ΔintI1-aadB-aadA1-cmlA residing on the Tn21-like transposon. Three S. enterica isolates from swine contained class 1 integron with the newly observed array type of 1800 bp/aadA7-aadA7. Integrons of 10 different types of both classes were located on transferable plasmids in E. coli and S. enterica. Our study demonstrated the existence of a considerable and common pool of transferable integrons in E. coli and S. enterica present in clinical and livestock environment in Lithuania.
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Affiliation(s)
- Justas Povilonis
- Department of Biochemistry and Biophysics, Faculty of Natural Sciences, Vilnius University, M.K. Ciurlionio 21, Vilnius, Lithuania
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