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Rosales RS, Ramírez AS, Moya-Gil E, de la Fuente SN, Suárez-Pérez A, Poveda JB. Microbiological Survey and Evaluation of Antimicrobial Susceptibility Patterns of Microorganisms Obtained from Suspect Cases of Canine Otitis Externa in Gran Canaria, Spain. Animals (Basel) 2024; 14:742. [PMID: 38473127 DOI: 10.3390/ani14050742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
A retrospective study of microbiological laboratory results from 2020 to 2022, obtained from a veterinary diagnostic laboratory of the island of Gran Canaria, Spain, focused on canine otitis cases, was performed. The objective of this study was to analyze the pathogen distribution, antimicrobial susceptibility, prevalence of multidrug resistant phenotypes and the role of coinfections in otitis cases in order to provide up-to-date evidence that could support effective control strategies for this prevalent pathology. A total of 604 submissions were processed for the diagnosis of canine external otitis. Of the samples analyzed, 472 were positive for bacterial or fungal growth (78.1%; 95% CI: 74.8-81.4%). A total of 558 microbiological diagnoses were obtained, divided in 421 bacterial (75.4%; 95% CI: 71.8-79.0%) and 137 fungal (24.6%; 95% CI: 20.9-28.1%) identifications. Staphylococcus pseudintermedius, Malassezia pachydermatis and Pseudomonas aeruginosa were the most prevalent microorganisms detected in clinical cases of otitis. High level antimicrobial resistance was found for Pseudomonas aeruginosa (30.7%), Proteus mirabilis (29.4%), Staphylococcus pseudintermedius (25.1%) and Escherichia coli (19%). Multidrug-resistant phenotypes were observed in 47% of the bacteria isolated. In addition, a 26.4% prevalence of methicillin-resistant Staphylococcus pseudintermedius was detected. The high prevalence of antimicrobial resistant phenotypes in these bacteria highlights the current necessity for constant up-to-date prevalence and antimicrobial susceptibility data that can support evidence-based strategies to effectively tackle this animal and public health concern.
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Affiliation(s)
- Rubén S Rosales
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Veterinary Faculty, University of Las Palmas de Gran Canaria, Trasmontaña s/n, 35416 Arucas, Spain
- Análisis Veterinarios Eurofins, Calle Leopoldo Matos, 18, 35006 Las Palmas de Gran Canaria, Spain
| | - Ana S Ramírez
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Veterinary Faculty, University of Las Palmas de Gran Canaria, Trasmontaña s/n, 35416 Arucas, Spain
| | - Eduardo Moya-Gil
- Veterinary Faculty, University of Las Palmas de Gran Canaria, Trasmontaña s/n, 35416 Arucas, Spain
| | - Sara N de la Fuente
- Análisis Veterinarios Eurofins, Calle Leopoldo Matos, 18, 35006 Las Palmas de Gran Canaria, Spain
| | - Alejandro Suárez-Pérez
- Departamento de Patolología Animal, Producción Animal, Bromatología y Ciencia y Tecnología de los Alimentos, Veterinary Faculty, University of Las Palmas de Gran Canaria, Trasmontaña s/n, 35416 Arucas, Spain
| | - José B Poveda
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Veterinary Faculty, University of Las Palmas de Gran Canaria, Trasmontaña s/n, 35416 Arucas, Spain
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Aleshina Y, Yeleussizova A, Mendybayeva A, Shevchenko P, Rychshanova R. Prevalence and antimicrobial resistance of Enterobacteriaceae in the north of Kazakhstan. Open Vet J 2024; 14:604-616. [PMID: 38549569 PMCID: PMC10970123 DOI: 10.5455/ovj.2024.v14.i2.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 01/15/2024] [Indexed: 04/02/2024] Open
Abstract
Background An increasing number of drugs are used each year in the treatment of small pets (cats and dogs), including medicines (cephalosporins and fluoroquinolones) used in human therapy. Aim The purpose of this study was to isolate and explore the antibiotic resistance of opportunistic Enterobacteriaceae (Escherichia coli, Klebsiella, Proteus, Ci trobacter, Enterobacter) from cats and dogs, and to isolate resistance genes in the microorganisms. Methods In 2021, 808 samples of biological material from small domestic animals were collected in veterinary clinics in Kostanay. From these, 210 microorganisms were isolated and identified. Results A large majority of the strains sampled belonged to E. coli-149 (70.9%), Enterobacter-11 (5.2%), Klebsiella-28 (13.3%), Proteus-12 (5.7%) and 10 Citrobacter isolates (4.8%). In all isolates identified, antibiotic resistance/sensitivity was determined by disc-diffusion method to ampicillin, cefoxitin, gentamicin, levomycetin, tetracycline, ciprofloxacin, norfloxacin, ofloxacin, cefoperazone, cefpodoxime, streptomycin, kanamycin, doxycycline, gemifloxacin, nalidixic acid, furazolidone, furadonine, amoxicillin, and enrofloxacin. Conclusion The study has demonstrated that the greatest number of Enterobacteriaceae were sensitive to the action of meropenem, which belongs to the group of beta-lactam antibiotics; resistance was demonstrated against tetracycline, doxycycline, ampicillin, amoxicillin, ofloxacin, and cefpodoxime. The most common genes encoding antimicrobial resistance were as follows: BlaTEM and OXA in 41 and 28 isolates, respectively, encoding resistance to beta-lactams; StrA and StrB in 45 and 48 isolates encoding aminoglycosides; and tetA and tetB in 43 and 28 isolates encoding tetracyclines. Obtained data demonstrate that uncontrolled and frequent use of beta-lactam and tetracycline antibacterials, in cats and dogs, results in the spread of genotypic resistance among micro-organisms of the family Enterobacteriaceae.
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Affiliation(s)
- Yuliya Aleshina
- Research Institute of Applied Biotechnology, A. Baitursynov Kostanay Regional University, Kostanay, Republic of Kazakhstan
| | - Anara Yeleussizova
- Department of Veterinary Sanitation, A. Baitursynov Kostanay Regional University, Kostanay, Republic of Kazakhstan
| | - Anara Mendybayeva
- Research Institute of Applied Biotechnology, A. Baitursynov Kostanay Regional University, Kostanay, Republic of Kazakhstan
| | - Pavel Shevchenko
- Research Institute of Applied Biotechnology, A. Baitursynov Kostanay Regional University, Kostanay, Republic of Kazakhstan
| | - Raushan Rychshanova
- Research Institute of Applied Biotechnology, A. Baitursynov Kostanay Regional University, Kostanay, Republic of Kazakhstan
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Zhong Y, Guo S, Thong S, Schlundt J, Kwa AL. First report of environmental bla PAC-1-carrying Aeromonas enteropelogenes. Microbiol Spectr 2023; 11:e0139123. [PMID: 37909756 PMCID: PMC10714797 DOI: 10.1128/spectrum.01391-23] [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: 06/08/2023] [Accepted: 09/25/2023] [Indexed: 11/03/2023] Open
Abstract
The bla PAC-1 has been reported in Central Asia and Europe countries like Afghanistan and France in Aeromonas caviae and Pseudomonas aeruginosa strains from animals and patients, respectively. However, there is no record of bla PAC-1-carrying strain from the natural environment, and bla PAC-1-carrying Aeromonas has not been reported in the Asia Pacific. Here, we report the first known enviromental bla PAC-1-carrying Aeromonas enteropelogenes in the world from reservoir water in Singapore. We have performed a comprehensive genetic environment alignment and comparison of bla PAC-1 between our strain and other strains from different countries and sources and found the bla PAC-1 located on a highly conserved gene cluster. We suggest that environmental Aeromonas strains may act as a hidden reservoir involved in the circulating of bla PAC-1. The finding of conserved bla PAC-1 cluster also suggested the existence of multiple transmission pathways of bla PAC-1 in the Asia-Pacific region, involving multiple sources and different species.
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Affiliation(s)
- Yang Zhong
- Department of Pharmacy, Singapore General Hospital, Singapore, Singapore
- Department of Clinical Translational Research, Singapore General Hospital, Singapore, Singapore
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore
| | - Siyao Guo
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore
| | - Shuhua Thong
- Department of Pharmacy, Singapore General Hospital, Singapore, Singapore
| | - Joergen Schlundt
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore
| | - Andrea L. Kwa
- Department of Pharmacy, Singapore General Hospital, Singapore, Singapore
- Emerging Infectious Diseases, Duke-NUS Medical School, Singapore, Singapore
- SingHealth Duke-NUS Medicine Academic Clinical Programme, Singapore, Singapore
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Bisi-Johnson MA, Adedeji AA, Sulaiman AA, Adefisoye MA, Okoh AI. Isolation and genotypic characterization of extended-spectrum beta-lactamase-producing Escherichia coli O157:H7 and Aeromonas hydrophila from selected freshwater sources in Southwest Nigeria. Sci Rep 2023; 13:10746. [PMID: 37400612 DOI: 10.1038/s41598-023-38014-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 06/30/2023] [Indexed: 07/05/2023] Open
Abstract
The proliferation of antibiotic-resistant bacteria and antimicrobial resistance is a pressing public health challenge because of their possible transfer to humans via contact with polluted water sources. In this study, three freshwater resources were assessed for important physicochemical characteristics as well as heterotrophic and coliform bacteria and as potential reservoirs for extended-spectrum beta-lactamase (ESBL) strains. The physicochemical characteristics ranged from 7.0 to 8.3; 25 to 30 °C, 0.4 to 93 mg/L, 0.53 to 8.80 mg/L and 53 to 240 mg/L for pH, temperature, dissolved oxygen (DO), biological oxygen demand (BOD5) and total dissolved solids, respectively. The physicochemical characteristics mostly align with guidelines except for the DO and BOD5 in some instances. Seventy-six (76) Aeromonas hydrophila and 65 Escherichia coli O157: H7 isolates were identified by preliminary biochemical analysis and PCR from the three sites. Among these, A. hydrophila displayed higher frequencies of antimicrobial resistance, with all 76 (100%) isolates completely resistant to cefuroxime and cefotaxime and with MARI ≥ 0.61. The test isolates showed more than 80% resistance against five of the ten test antimicrobials, with resistance against cefixime, a cephalosporin antibiotic being the highest at 95% (134/141). The frequency of the detection of the resistance genes in the A. hydrophila isolates generally ranged between 0% (blaSHV) and 26.3% (blaCTX-M), while the frequency of detection among the E. coli O157:H7 isolates ranged between 4.6% (blaCTX-M) and 58.4% (blaTEM). Our findings indicate that the distribution of antibiotic-resistant bacteria with diverse ESBL-producing capabilities and virulence genes in freshwater sources potentially threatens public health and the environment.
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Affiliation(s)
| | - Atilade A Adedeji
- Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Adebayo A Sulaiman
- Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Martins A Adefisoye
- Department of Microbiology, School of Science and Technology, Babcock University, Ilishan-Remo, Nigeria.
- Applied and Environmental Microbiology Research Group, Department of Biochemistry and Microbiology, University of Fort Hare, Alice, 5700, South Africa.
| | - Anthony I Okoh
- Applied and Environmental Microbiology Research Group, Department of Biochemistry and Microbiology, University of Fort Hare, Alice, 5700, South Africa
- Department of Environmental Health Sciences College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
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Ortiz-Díez G, Mengíbar RL, Turrientes MC, Artigao MRB, Gallifa RL, Tello AM, Pérez CF, Santiago TA. Prevalence, incidence and risk factors for acquisition and colonization of extended-spectrum beta-lactamase- and carbapenemase-producing Enterobacteriaceae from dogs attended at a veterinary hospital in Spain. Comp Immunol Microbiol Infect Dis 2023; 92:101922. [PMID: 36509030 DOI: 10.1016/j.cimid.2022.101922] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 11/18/2022] [Accepted: 11/25/2022] [Indexed: 11/30/2022]
Abstract
The last 10 years have seen a progressive increase in antibiotic resistance rates in bacteria isolated from companion animals. Exposure of individuals to resistant bacteria from companion animals, such as extended-spectrum beta-lactamase- (ESBL) and carbapenemase- (CPE) producing Enterobacteriaceae, can be propitiated. Few studies evaluate the incidence and risk factors associated with colonization by multidrug-resistant bacteria in dogs. This work aims to estimate the prevalence, incidence and risk factors associated with colonization of ESBL-E and CPE-E in 44 canine patients hospitalized in a veterinary hospital. The antimicrobial susceptibility of Enterobacteriaceae strains was analyzed and the molecular detection of resistant genes was performed. A prevalence of 25.0% and an incidence of ESBL-E of 45.5% were observed in dogs colonized by Enterobacteriaceae at hospital admission and release, respectively. Escherichia coli, Klebsiella pneumoniae, Citrobacter koseri and Morganella morganii were identified as ESBL-producing bacterial species. Resistance genes were detected for ESBL-producing strains. No CPE isolates were obtained on the CPE-selective medium. The administration of corticosteroids prior to hospitalization and the presence of concomitant diseases were associated with colonization by these bacteria in dogs. Considering that one-quarter of the patients evaluated were colonized by ESBL-E, companion animals should be considered as potential transmission vehicles and ESBL-E reservoirs for humans. Special care should be taken in animals attended at veterinary hospitals, as the length of stay in the hospital could increase the risks.
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Affiliation(s)
- Gustavo Ortiz-Díez
- Hospital Clínico Veterinario, Universidad Alfonso X El Sabio, Madrid, Spain.
| | - Ruth Luque Mengíbar
- Hospital Clínico Veterinario, Universidad Alfonso X El Sabio, Madrid, Spain.
| | - María-Carmen Turrientes
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal -IRYCIS-, Madrid, Spain; Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública -CIBERESP-, Madrid, Spain.
| | | | - Raúl López Gallifa
- Hospital Clínico Veterinario, Universidad Alfonso X El Sabio, Madrid, Spain.
| | | | - Cristina Fernández Pérez
- Fundación Instituto para la Mejora de la Asistencia Sanitaria, Madrid, Spain; Servicio de Medicina Preventiva y Salud Pública, Complexo Hospitalario Universitario de Santiago, Santiago de Compostela, A Coruña, Spain.
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Muleme J, Kankya C, Munyeme M, Musoke D, Ssempebwa JC, Isunju JB, Wambi R, Balugaba BE, Sekulima T, Mugambe RK, Cadmus S, Kajumbula HM. Phenotypic Characterization and Antibiograms of Extended-Spectrum Beta-Lactamase-Producing Escherichia coli Isolated at the Human-Animal-Environment Interface Using a One Health Approach Among Households in Wakiso District, Uganda. Infect Drug Resist 2023; 16:2203-2216. [PMID: 37081947 PMCID: PMC10112474 DOI: 10.2147/idr.s398951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/01/2023] [Indexed: 04/22/2023] Open
Abstract
Background The occurrence of extended spectrum beta-lactamase (ESBL) producing bacteria such as Escherichia coli has increasingly become recognized beyond hospital settings. Resistance to other types of antibiotics limits treatment options while the existence of such bacteria among humans, animals, and the environment is suggestive of potential zoonotic and reverse-zoonotic transmission. This study aimed to establish the antibiotic susceptibility profiles of the ESBL-producing Escherichia coli (ESBL-EC) from human, animal, and environmental isolates obtained among farming households within Wakiso district using a One Health approach. Methods A total of 100 ESBL-EC isolates from humans 35/100 (35%), animals 56/100 (56%), and the environment 9/100 (9%) were tested for susceptibility to 11 antibiotics. This was done using the Kirby-Bauer disk diffusion method according to Clinical and Laboratory Standards Institute (CLSI) guidelines. Data were analyzed in STATA ver. 16 and graphs were drawn in Microsoft excel ver. 10. Results Most of the ESBL-EC isolates (98%) were resistant to more than two antibiotics. ESBL-EC isolates were most susceptible to meropenem (MEM) (88.0%), and imipenem (82.0%) followed by gentamicin (72%). ESBL-EC isolates from humans were most susceptible to meropenem (MEM) followed by imipenem (IPM)> gentamicin (CN)> ciprofloxacin (CIP). Animal samples were more susceptible to MEM, IPM, and CN but were highly resistant to cefotaxime (CTX)> cefepime (FEP)>other antibiotics. Multidrug resistance (MDR) was mostly reported among households keeping goats under intensive husbandry practices. Seven percent of the isolates exhibited carbapenem resistance while 22% showed aminoglycoside resistance. Similar resistance patterns among humans, animals, and environmental samples were also reported. Conclusion Our study provides baseline information on non-hospital-based MDR caused by ESBL-EC using a One Health approach. ESBL-EC isolates were prevalent among apparently healthy community members, animals, and their environment. It is important to conduct more One Health approach studies to generate evidence on the drivers, resistance patterns, and transmission of ESBL-producing organisms at the human-animal-environmental interface.
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Affiliation(s)
- James Muleme
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
- Department of Biosecurity Ecosystems and Veterinary Public Health, Makerere University College of Veterinary Medicine Animal Resources and Biosecurity, Kampala, Uganda
- Correspondence: James Muleme, Email
| | - Clovice Kankya
- Department of Biosecurity Ecosystems and Veterinary Public Health, Makerere University College of Veterinary Medicine Animal Resources and Biosecurity, Kampala, Uganda
| | - Musso Munyeme
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - David Musoke
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
| | - John C Ssempebwa
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
| | - John Bosco Isunju
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
| | - Rogers Wambi
- Department of Biosecurity Ecosystems and Veterinary Public Health, Makerere University College of Veterinary Medicine Animal Resources and Biosecurity, Kampala, Uganda
- Department of Clinical Laboratory, Mulago National Referral Hospital, Kampala, Uganda
| | - Bonny Enock Balugaba
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
| | - Tahalu Sekulima
- Department of Biotechnical and Diagnostic Sciences, Veterinary Microbiology Research Laboratory, College of Veterinary Medicine, Animal Resources and Biosecurity, Kampala, Uganda
| | - Richard K Mugambe
- Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda
| | - Simeon Cadmus
- Department of Veterinary Public Health and Preventive Medicine, Center for Control and Prevention of Zoonoses, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Henry M Kajumbula
- Department of Medical Microbiology, Makerere University College of Health Sciences, Kampala, Uganda
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Prendergast DM, Slowey R, Burgess CM, Murphy D, Johnston D, Morris D, O’ Doherty Á, Moriarty J, Gutierrez M. Characterization of cephalosporin and fluoroquinolone resistant Enterobacterales from Irish farm waste by whole genome sequencing. Front Microbiol 2023; 14:1118264. [PMID: 37032887 PMCID: PMC10073600 DOI: 10.3389/fmicb.2023.1118264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 03/01/2023] [Indexed: 04/11/2023] Open
Abstract
Background The Enterobacterales are a group of Gram-negative bacteria frequently exhibiting extended antimicrobial resistance (AMR) and involved in the transmission of resistance genes to other bacterial species present in the same environment. Due to their impact on human health and the paucity of new antibiotics, the World Health Organization (WHO) categorized carbapenem resistant and ESBL-producing as critical. Enterobacterales are ubiquitous and the role of the environment in the transmission of AMR organisms or antimicrobial resistance genes (ARGs) must be examined in tackling AMR in both humans and animals under the one health approach. Animal manure is recognized as an important source of AMR bacteria entering the environment, in which resistant genes can accumulate. Methods To gain a better understanding of the dissemination of third generation cephalosporin and fluoroquinolone resistance genes between isolates in the environment, we applied whole genome sequencing (WGS) to Enterobacterales (79 E. coli, 1 Enterobacter cloacae, 1 Klebsiella pneumoniae, and 1 Citrobacter gillenii) isolated from farm effluents in Ireland before (n = 72) and after (n = 10) treatment by integrated constructed wetlands (ICWs). DNA was extracted using the MagNA Pure 96 system (Roche Diagnostics, Rotkreuz, Switzerland) followed by WGS on a MiSeq platform (Illumina, Eindhoven, Netherlands) using v3 chemistry as 300-cycle paired-end runs. AMR genes and point mutations were identified and compared to the phenotypic results for better understanding of the mechanisms of resistance and resistance transmission. Results A wide variety of cephalosporin and fluoroquinolone resistance genes (mobile genetic elements (MGEs) and chromosomal mutations) were identified among isolates that mostly explained the phenotypic AMR patterns. A total of 31 plasmid replicon types were identified among the 82 isolates, with a subset of them (n = 24), identified in E. coli isolates. Five plasmid replicons were confined to the Enterobacter cloacae isolate and two were confined to the Klebsiella pneumoniae isolate. Virulence genes associated with functions including stress, survival, regulation, iron uptake secretion systems, invasion, adherence and toxin production were identified. Conclusion Our study showed that antimicrobial resistant organisms (AROs) can persist even following wastewater treatment and could transmit AMR of clinical relevance to the environment and ultimately pose a risk to human or animal health.
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Affiliation(s)
- Deirdre M. Prendergast
- Department of Agriculture, Food and the Marine, Celbridge, Co. Kildare, Ireland
- *Correspondence: Deirdre M. Prendergast,
| | - Rosemarie Slowey
- Department of Agriculture, Food and the Marine, Celbridge, Co. Kildare, Ireland
| | | | - Declan Murphy
- Department of Agriculture, Food and the Marine, Celbridge, Co. Kildare, Ireland
| | - Dayle Johnston
- Department of Agriculture, Food and the Marine, Celbridge, Co. Kildare, Ireland
| | - Dearbháile Morris
- Antimicrobial Resistance and Microbial Ecology Group, University of Galway, Galway, Ireland
| | - Áine O’ Doherty
- Department of Agriculture, Food and the Marine, Celbridge, Co. Kildare, Ireland
| | - John Moriarty
- Department of Agriculture, Food and the Marine, Celbridge, Co. Kildare, Ireland
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Weese JS, O’Brien T, Bateman S. Fecal shedding of extended-spectrum beta-lactamase-producing Enterobacterales in cats admitted to an animal shelter. J Feline Med Surg 2022; 24:1301-1304. [PMID: 35133182 PMCID: PMC10812345 DOI: 10.1177/1098612x221075602] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVES The objective of this study was to evaluate shedding of extended-spectrum beta-lactamase (ESBL)-producing bacteria in cats admitted to an animal shelter. METHODS Fecal samples were collected from cats admitted to an animal shelter between 12 June and 23 August 2018. Selective enrichment culture for ESBL-producing bacteria was performed and isolates were speciated and tested for selected ESBL genes using PCR. RESULTS ESBL-producing Enterobacterales were identified in fecal samples from 2/87 (2.3%; 95% confidence interval 0.6-8.0) cats. One isolate was an Escherichia coli that possessed blaCTX-M-1, blaCMY-2 and blaTEM genes. The other was Enterobacter cloacae possessing blaCTX-M-1 and blaCMY-2. CONCLUSIONS AND RELEVANCE While the study sample size and prevalence rate for ESBL-producing bacteria were low, these data document that cats admitted to similar shelters could harbor these agents. The risk posed by ESBL-producing bacterium shedding in cats, both to cats and other species, is currently unclear. However, these findings support the need for more investigation of interspecies transmission of ESBL-producing bacteria and ESBL genes, as well as the importance of antimicrobial stewardship and routine infection control measures.
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Affiliation(s)
- J Scott Weese
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Tyler O’Brien
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Shane Bateman
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
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Godijk NG, Bootsma MCJ, Bonten MJM. Transmission routes of antibiotic resistant bacteria: a systematic review. BMC Infect Dis 2022; 22:482. [PMID: 35596134 PMCID: PMC9123679 DOI: 10.1186/s12879-022-07360-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 03/28/2022] [Indexed: 11/16/2022] Open
Abstract
Background Quantification of acquisition routes of antibiotic resistant bacteria (ARB) is pivotal for understanding transmission dynamics and designing cost-effective interventions. Different methods have been used to quantify the importance of transmission routes, such as relative risks, odds ratios (OR), genomic comparisons and basic reproduction numbers. We systematically reviewed reported estimates on acquisition routes’ contributions of ARB in humans, animals, water and the environment and assessed the methods used to quantify the importance of transmission routes. Methods PubMed and EMBASE were searched, resulting in 6054 articles published up until January 1st, 2019. Full text screening was performed on 525 articles and 277 are included. Results We extracted 718 estimates with S. aureus (n = 273), E. coli (n = 157) and Enterobacteriaceae (n = 99) being studied most frequently. Most estimates were derived from statistical methods (n = 560), mainly expressed as risks (n = 246) and ORs (n = 239), followed by genetic comparisons (n = 85), modelling (n = 62) and dosage of ARB ingested (n = 17). Transmission routes analysed most frequently were occupational exposure (n = 157), travelling (n = 110) and contacts with carriers (n = 83). Studies were mostly performed in the United States (n = 142), the Netherlands (n = 87) and Germany (n = 60). Comparison of methods was not possible as studies using different methods to estimate the same route were lacking. Due to study heterogeneity not all estimates by the same method could be pooled. Conclusion Despite an abundance of published data the relative importance of transmission routes of ARB has not been accurately quantified. Links between exposure and acquisition are often present, but the frequency of exposure is missing, which disables estimation of transmission routes’ importance. To create effective policies reducing ARB, estimates of transmission should be weighed by the frequency of exposure occurrence. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-022-07360-z.
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Affiliation(s)
- Noortje G Godijk
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
| | - Martin C J Bootsma
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Mathematics, Faculty of Sciences, Utrecht University, Utrecht, The Netherlands
| | - Marc J M Bonten
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
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Carvalho I, Cunha R, Martins C, Martínez-Álvarez S, Safia Chenouf N, Pimenta P, Pereira AR, Ramos S, Sadi M, Martins Â, Façanha J, Rabbi F, Capita R, Alonso-Calleja C, de Lurdes Nunes Enes Dapkevicius M, Igrejas G, Torres C, Poeta P. Antimicrobial Resistance Genes and Diversity of Clones among Faecal ESBL-Producing Escherichia coli Isolated from Healthy and Sick Dogs Living in Portugal. Antibiotics (Basel) 2021; 10:antibiotics10081013. [PMID: 34439063 PMCID: PMC8388948 DOI: 10.3390/antibiotics10081013] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 08/04/2021] [Accepted: 08/16/2021] [Indexed: 12/12/2022] Open
Abstract
The purpose of this study was to analyse the prevalence and genetic characteristics of ESBL and acquired-AmpC (qAmpC)-producing Escherichia coli isolates from healthy and sick dogs in Portugal. Three hundred and sixty-one faecal samples from sick and healthy dogs were seeded on MacConkey agar supplemented with cefotaxime (2 µg/mL) for cefotaxime-resistant (CTXR) E. coli recovery. Antimicrobial susceptibility testing for 15 antibiotics was performed and the ESBL-phenotype of the E. coli isolates was screened. Detection of antimicrobial resistance and virulence genes, and molecular typing of the isolates (phylogroups, multilocus-sequence-typing, and specific-ST131) were performed by PCR (and sequencing when required). CTXRE. coli isolates were obtained in 51/361 faecal samples analysed (14.1%), originating from 36/234 sick dogs and 15/127 healthy dogs. Forty-seven ESBL-producing E. coli isolates were recovered from 32 sick (13.7%) and 15 healthy animals (11.8%). Different variants of blaCTX-M genes were detected among 45/47 ESBL-producers: blaCTX-M-15 (n = 26), blaCTX-M-1 (n = 10), blaCTX-M-32 (n = 3), blaCTX-M-55 (n = 3), blaCTX-M-14 (n = 2), and blaCTX-M-variant (n = 1); one ESBL-positive isolate co-produced CTX-M-15 and CMY-2 enzymes. Moreover, two additional CTXR ESBL-negative E. coli isolates were CMY-2-producers (qAmpC). Ten different sequence types were identified (ST/phylogenetic-group/β-lactamase): ST131/B2/CTX-M-15, ST617/A/CTX-M-55, ST3078/B1/CTX-M-32, ST542/A/CTX-M-14, ST57/D/CTX-M-1, ST12/B2/CTX-M-15, ST6448/B1/CTX-M-15 + CMY-2, ST5766/A/CTX-M-32, ST115/D/CMY-2 and a new-ST/D/CMY-2. Five variants of CTX-M enzymes (CTX-M-15 and CTX-M-1 predominant) and eight different clonal complexes were detected from canine ESBL-producing E. coli isolates. Although at a lower rate, CMY-2 β-lactamase was also found. Dogs remain frequent carriers of ESBL and/or qAmpC-producing E. coli with a potential zoonotic role.
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Affiliation(s)
- Isabel Carvalho
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- Laboratory Associated for Green Chemistry (LAQV-REQUIMTE), New University of Lisbon, 2829-516 Monte da Caparica, Portugal
- Area Biochemistry and Molecular Biology, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (N.S.C.); (M.S.); (C.T.)
| | - Rita Cunha
- Hospital Veterinário Cascais da Onevet, 2775-352 Parede, Lisbon, Portugal;
| | - Carla Martins
- Clínica Veterinária do Vouga, 3740-253 Sever do Vouga, Portugal;
| | - Sandra Martínez-Álvarez
- Area Biochemistry and Molecular Biology, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (N.S.C.); (M.S.); (C.T.)
| | - Nadia Safia Chenouf
- Area Biochemistry and Molecular Biology, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (N.S.C.); (M.S.); (C.T.)
- Laboratory of Exploration and Valuation of the Steppe Ecosystem, University of Djelfa, Djelfa 17000, Algeria
| | - Paulo Pimenta
- Hospital Veterinário de Trás-os-Montes, 5000-056 Vila Real, Portugal;
| | - Ana Raquel Pereira
- Centro Veterinário de Macedo de Cavaleiros, 5340-202 Bragança, Portugal;
| | - Sónia Ramos
- VetRedondo, Consultório Veterinário de Monte Redondo Unipessoal Lda, Monte Redondo, 2425-618 Leiria, Portugal;
| | - Madjid Sadi
- Area Biochemistry and Molecular Biology, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (N.S.C.); (M.S.); (C.T.)
- Laboratory of Biotechnology Related to Animals Reproduction, Université Saad Dahlab de Blida, Blida 09000, Algeria
| | - Ângela Martins
- Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
| | - Jorge Façanha
- Centro Veterinário Jorge Façanha, 5140-060 Carrazeda de Ansiães, Portugal;
| | - Fazle Rabbi
- Australian Computer Society, Docklands, Melbourne, VIC 3008, Australia;
| | - Rosa Capita
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, 24071 León, Spain; (R.C.); (C.A.-C.)
- Institute of Food Science and Technology, University of León, 24071 León, Spain
| | - Carlos Alonso-Calleja
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, 24071 León, Spain; (R.C.); (C.A.-C.)
- Institute of Food Science and Technology, University of León, 24071 León, Spain
| | - Maria de Lurdes Nunes Enes Dapkevicius
- Faculty of Agricultural and Environmental Sciences, University of the Azores, 9500-321 Angra do Heroísmo, Portugal;
- Institute of Agricultural and Environmental Research and Technology (IITAA), University of the Azores, 9500-321 Angra do Heroísmo, Portugal
| | - Gilberto Igrejas
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- Laboratory Associated for Green Chemistry (LAQV-REQUIMTE), New University of Lisbon, 2829-516 Monte da Caparica, Portugal
| | - Carmen Torres
- Area Biochemistry and Molecular Biology, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (N.S.C.); (M.S.); (C.T.)
| | - Patrícia Poeta
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
- Laboratory Associated for Green Chemistry (LAQV-REQUIMTE), New University of Lisbon, 2829-516 Monte da Caparica, Portugal
- Correspondence: ; Tel.: +351-25935-0466; Fax: +351-25935-0629
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11
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Jung D, Park S, Ruffini J, Dussault F, Dufour S, Ronholm J. Comparative genomic analysis of Escherichia coli isolates from cases of bovine clinical mastitis identifies nine specific pathotype marker genes. Microb Genom 2021; 7. [PMID: 34227932 PMCID: PMC8477405 DOI: 10.1099/mgen.0.000597] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Escherichia coli is a major causative agent of environmental bovine mastitis and this disease causes significant economic losses for the dairy industry. There is still debate in the literature as to whether mammary pathogenic E. coli (MPEC) is indeed a unique E. coli pathotype, or whether this infection is merely an opportunistic infection caused by any E. coli isolate being displaced from the bovine gastrointestinal tract to the environment and, then, into the udder. In this study, we conducted a thorough genomic analysis of 113 novel MPEC isolates from clinical mastitis cases and 100 bovine commensal E. coli isolates. A phylogenomic analysis indicated that MPEC and commensal E. coli isolates formed clades based on common sequence types and O antigens, but did not cluster based on mammary pathogenicity. A comparative genomic analysis of MPEC and commensal isolates led to the identification of nine genes that were part of either the core or the soft-core MPEC genome, but were not found in any bovine commensal isolates. These apparent MPEC marker genes were genes involved with nutrient intake and metabolism [adeQ, adenine permease; nifJ, pyruvate-flavodoxin oxidoreductase; and yhjX, putative major facilitator superfamily (MFS)-type transporter], included fitness and virulence factors commonly seen in uropathogenic E. coli (pqqL, zinc metallopeptidase, and fdeC, intimin-like adhesin, respectively), and putative proteins [yfiE, uncharacterized helix-turn-helix-type transcriptional activator; ygjI, putative inner membrane transporter; and ygjJ, putative periplasmic protein]. Further characterization of these highly conserved MPEC genes may be critical to understanding the pathobiology of MPEC.
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Affiliation(s)
- Dongyun Jung
- Faculty of Agricultural and Environmental Sciences, Macdonald Campus, McGill University, Sainte Anne de Bellevue, Quebec, Canada
- Mastitis Network, Saint-Hyacinthe, Quebec J2S 2M2, Canada
| | - Soyoun Park
- Faculty of Agricultural and Environmental Sciences, Macdonald Campus, McGill University, Sainte Anne de Bellevue, Quebec, Canada
- Mastitis Network, Saint-Hyacinthe, Quebec J2S 2M2, Canada
| | - Janina Ruffini
- Faculty of Agricultural and Environmental Sciences, Macdonald Campus, McGill University, Sainte Anne de Bellevue, Quebec, Canada
| | | | - Simon Dufour
- Mastitis Network, Saint-Hyacinthe, Quebec J2S 2M2, Canada
- Regroupement FRQNT Op+Lait, Saint-Hyacinthe, Québec J2S 2M2, Canada
- Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada
| | - Jennifer Ronholm
- Faculty of Agricultural and Environmental Sciences, Macdonald Campus, McGill University, Sainte Anne de Bellevue, Quebec, Canada
- Mastitis Network, Saint-Hyacinthe, Quebec J2S 2M2, Canada
- Regroupement FRQNT Op+Lait, Saint-Hyacinthe, Québec J2S 2M2, Canada
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12
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Salgado-Caxito M, Benavides JA, Adell AD, Paes AC, Moreno-Switt AI. Global prevalence and molecular characterization of extended-spectrum β-lactamase producing- Escherichia coli in dogs and cats - A scoping review and meta-analysis. One Health 2021; 12:100236. [PMID: 33889706 PMCID: PMC8050393 DOI: 10.1016/j.onehlt.2021.100236] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 03/08/2021] [Accepted: 03/14/2021] [Indexed: 11/25/2022] Open
Abstract
Antimicrobial resistance (AMR) represents a major threat to human and animal health. Part of the AMR dimension is the circulation of extended-spectrum β-lactamases producing-Escherichia coli (ESBL-E. coli), which is now commonly reported among companion animals. However, the global perspective of the prevalence and population structure of ESBL-E. coli circulating in dogs and cats has not been estimated limiting our understanding of their role in the dissemination of ESBL-E. coli. The aim of this study was to compare the prevalence of ESBL-E. coli between dogs and cats and across countries through meta-analysis. We also performed a scoping review to summarize the current knowledge on ESBL genes and E. coli clones circulating among companion animals. A total of 128 studies published in PubMed, Web of Science, and Scopus up to April 2020 were selected and contained information on prevalence and/or molecular characterization of ESBL genes and ESBL-E. coli clones. Our review shows an increase in the number of publications between 2000 and 2019, concentrated mainly in Europe. Prevalence varied across continents, ranging from 0.63% (Oceania) to 16.56% (Africa) in dogs and from 0% (Oceania) to 16.82% (Asia) in cats. Although there were twice as many studies reporting prevalence on dogs (n = 61) than on cats (n = 32), and only 9 studies focused exclusively on cats, our meta-analysis showed no difference in the global prevalence of ESBL-E. coli between dogs (6.87% [95% CI: 4.46-10.45%]) and cats (5.04% [95% CI: 2.42-10.22%]). A considerable diversity of ESBL genes (n = 60) and sequence types (ST) (n = 171) were recovered from companion animals. ESBL-E. coli encoded by CTX-M-15 (67.5%, 77/114) and SHV-12 (21.9%, 25/114), along with resistant strains of ST38 (22.7%, 15/66) and ST131 (50%, 33/66) were widespread and detected in all continents. While presence of ESBL-E. coli is widespread, the drivers influencing the observed ESBL-E. coli prevalence and the clinical relevance in veterinary medicine and public health along with economic impact of ESBL-E. coli infections among companion animals need to be further investigated.
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Affiliation(s)
- Marília Salgado-Caxito
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
- Millennium Initiative for Collaborative Research On Bacterial Resistance (MICROB-R), Santiago, Chile
| | - Julio A. Benavides
- Millennium Initiative for Collaborative Research On Bacterial Resistance (MICROB-R), Santiago, Chile
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
- Centro de Investigación para la Sustentabilidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Aiko D. Adell
- Millennium Initiative for Collaborative Research On Bacterial Resistance (MICROB-R), Santiago, Chile
- Escuela de Medicina Veterinaria, Universidad Andres Bello, Santiago, Chile
| | - Antonio Carlos Paes
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Andrea I. Moreno-Switt
- Millennium Initiative for Collaborative Research On Bacterial Resistance (MICROB-R), Santiago, Chile
- Escuela de Medicina Veterinaria, Pontificia Universidad Católica de Chile, Santiago, Chile
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13
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Hickman RA, Leangapichart T, Lunha K, Jiwakanon J, Angkititrakul S, Magnusson U, Sunde M, Järhult JD. Exploring the Antibiotic Resistance Burden in Livestock, Livestock Handlers and Their Non-Livestock Handling Contacts: A One Health Perspective. Front Microbiol 2021; 12:651461. [PMID: 33959112 PMCID: PMC8093850 DOI: 10.3389/fmicb.2021.651461] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 03/16/2021] [Indexed: 01/14/2023] Open
Abstract
Antibiotics are freqeuently used in the livestock sector in low- and middle-income countries for treatment, prophylaxis, and growth promotion. However, there is limited information into the zoonotic prevalence and dissemination patterns of antimicrobial resistance (AMR) within these environments. In this study we used pig farming in Thailand as a model to explore AMR; 156 pig farms were included, comprising of small-sized (<50 sows) and medium-sized (≥100 sows) farms, where bacterial isolates were selectively cultured from animal rectal and human fecal samples. Bacterial isolates were subjected to antimicrobial susceptibility testing (AST), and whole-genome sequencing. Our results indicate extensive zoonotic sharing of antibiotic resistance genes (ARGs) by horizontal gene transfer. Resistance to multiple antibiotics was observed with higher prevalence in medium-scale farms. Zoonotic transmission of colistin resistance in small-scale farms had a dissemination gradient from pigs to handlers to non-livestock contacts. We highly recommend reducing the antimicrobial use in animals’ feeds and medications, especially the last resort drug colistin.
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Affiliation(s)
- Rachel A Hickman
- Department of Medical Biochemistry and Microbiology, Zoonosis Science Center, Uppsala University, Uppsala, Sweden
| | | | - Kamonwan Lunha
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Jatesada Jiwakanon
- Research Group for Animal Health Technology, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Sunpetch Angkititrakul
- Research Group for Animal Health Technology, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Ulf Magnusson
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Marianne Sunde
- Section for Animal Health and Food Safety, Norwegian Veterinary Institute, Oslo, Norway
| | - Josef D Järhult
- Department of Medical Sciences, Zoonosis Science Center, Uppsala University, Uppsala, Sweden
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14
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High β-lactam resistance in Gram-negative bacteria associated with kennel cough and cat flu in Egypt. Sci Rep 2021; 11:3347. [PMID: 33558604 PMCID: PMC7870956 DOI: 10.1038/s41598-021-82061-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 01/12/2021] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial resistance within pets has gained worldwide attention due to pets close contact with humans. This report examined at the molecular level, the antimicrobial resistance mechanisms associated with kennel cough and cat flu. 1378 pets in total were assessed for signs of respiratory infection, and nasal and conjunctival swabs were collected across 76 diseased animals. Phenotypically, 27% of the isolates were characterized by multidrug resistance and possessed high levels of resistance rates to β-lactams. Phenotypic ESBLs/AmpCs production were identified within 40.5% and 24.3% of the isolates, respectively. Genotypically, ESBL- and AmpC-encoding genes were detected in 33.8% and 10.8% of the isolates, respectively, with blaSHV comprising the most identified ESBL, and blaCMY and blaACT present as the AmpC with the highest levels. qnr genes were identified in 64.9% of the isolates, with qnrS being the most prevalent (44.6%). Several antimicrobial resistance determinants were detected for the first time within pets from Africa, including blaCTX-M-37, blaCTX-M-156, blaSHV-11, blaACT-23, blaACT25/31, blaDHA-1, and blaCMY-169. Our results revealed that pets displaying symptoms of respiratory illness are potential sources for pathogenic microbes possessing unique resistance mechanisms which could be disseminated to humans, thus leading to the development of severe untreatable infections in these hosts.
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15
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Li Y, Fernández R, Durán I, Molina-López RA, Darwich L. Antimicrobial Resistance in Bacteria Isolated From Cats and Dogs From the Iberian Peninsula. Front Microbiol 2021; 11:621597. [PMID: 33584590 PMCID: PMC7874003 DOI: 10.3389/fmicb.2020.621597] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 12/30/2020] [Indexed: 12/16/2022] Open
Abstract
Pet animals are assumed to be potential reservoirs in transferring antimicrobial resistance (AMR) to humans due to the extensively applied broad-spectrum antimicrobial agents and their close contact with humans. In this study, microbiological data and antimicrobial susceptibility results of dog (n = 5,086) and cat (n = 789) clinical samples from a private Laboratory of Diagnosis in Barcelona were analyzed. Samples came from different counties of the Iberian Peninsula during 2016–2018. In dogs, clinical samples were most commonly from otitis, and in cats from wounds, respiratory tract infections and conjunctivitis. In both pet groups, Staphylococcus spp. (31% in dogs vs 30% in cats), Streptococcus spp. (19% vs 17%), Pseudomonas spp. (16% vs 10%), Escherichia coli (8% vs 5.6%), and Enterococcus spp. (5.5% vs 6.8%) were shown as the most predominant bacteria. However, higher frequencies of P. aeruginosa, P. canis, and S. pseudintermedius were found in dogs, while S. aureus and P. multocida were more prevalent in cats. The antimicrobial susceptibility testing demonstrated that Enterococcus spp. and Pseudomonas spp. presented the highest levels of AMR in both dogs and cats. Within the Enterobacteriaceae, E. coli showed low levels of AMR compared to Klebsiella, Proteus, or Enterobacter spp. Respiratory tract infections caused by K. pneumoniae presented higher AMR in cats. By contrast, Pasteurella isolates from the respiratory tract were highly sensitive to all the antimicrobials in cats and dogs. Data from this study could be used to guide empirical antimicrobial selection in companion animal veterinary practices in the Iberian Peninsula.
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Affiliation(s)
- Yanli Li
- Departament de Sanitat i Anatomia Animal, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Rubén Fernández
- Departament de Sanitat i Anatomia Animal, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Inma Durán
- Departamento Veterinaria de Laboratorios Echevarne, Barcelona, Spain
| | - Rafael A Molina-López
- Catalan Wildlife Service, Centre de Fauna Salvatge de Torreferrussa, Barcelona, Spain
| | - Laila Darwich
- Departament de Sanitat i Anatomia Animal, Universitat Autònoma de Barcelona, Barcelona, Spain
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16
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Petassi MT, Hsieh SC, Peters JE. Guide RNA Categorization Enables Target Site Choice in Tn7-CRISPR-Cas Transposons. Cell 2020; 183:1757-1771.e18. [PMID: 33271061 PMCID: PMC7770071 DOI: 10.1016/j.cell.2020.11.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/10/2020] [Accepted: 11/03/2020] [Indexed: 01/08/2023]
Abstract
CRISPR-Cas defense systems have been coopted multiple times in nature for guide RNA-directed transposition by Tn7-like elements. Prototypic Tn7 uses dedicated proteins for two targeting pathways: one targeting a neutral and conserved attachment site in the chromosome and a second directing transposition into mobile plasmids facilitating cell-to-cell transfer. We show that Tn7-CRISPR-Cas elements evolved a system of guide RNA categorization to accomplish the same two-pathway lifestyle. Multiple mechanisms allow functionally distinct guide RNAs for transposition: a conventional system capable of acquiring guide RNAs to new plasmid and phage targets and a second providing long-term memory for access to chromosomal sites upon entry into a new host. Guide RNAs are privatized to be recognized only by the transposon-adapted system via sequence specialization, mismatch tolerance, and selective regulation to avoid toxic self-targeting by endogenous CRISPR-Cas defense systems. This information reveals promising avenues to engineer guide RNAs for enhanced CRISPR-Cas functionality for genome modification.
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Affiliation(s)
- Michael T Petassi
- Department of Microbiology, Cornell University, Ithaca, NY 14853, USA
| | - Shan-Chi Hsieh
- Department of Microbiology, Cornell University, Ithaca, NY 14853, USA
| | - Joseph E Peters
- Department of Microbiology, Cornell University, Ithaca, NY 14853, USA.
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17
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Flament-Simon SC, de Toro M, García V, Blanco JE, Blanco M, Alonso MP, Goicoa A, Díaz-González J, Nicolas-Chanoine MH, Blanco J. Molecular Characteristics of Extraintestinal Pathogenic E. coli (ExPEC), Uropathogenic E. coli (UPEC), and Multidrug Resistant E. coli Isolated from Healthy Dogs in Spain. Whole Genome Sequencing of Canine ST372 Isolates and Comparison with Human Isolates Causing Extraintestinal Infections. Microorganisms 2020; 8:microorganisms8111712. [PMID: 33142871 PMCID: PMC7716232 DOI: 10.3390/microorganisms8111712] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/23/2020] [Accepted: 10/30/2020] [Indexed: 01/11/2023] Open
Abstract
Under a one health perspective and the worldwide antimicrobial resistance concern, we investigated extraintestinal pathogenic Escherichia coli (ExPEC), uropathogenic E. coli (UPEC), and multidrug resistant (MDR) E. coli from 197 isolates recovered from healthy dogs in Spain between 2013 and 2017. A total of 91 (46.2%) isolates were molecularly classified as ExPEC and/or UPEC, including 50 clones, among which (i) four clones were dominant (B2-CH14-180-ST127, B2-CH52-14-ST141, B2-CH103-9-ST372 and F-CH4-58-ST648) and (ii) 15 had been identified among isolates causing extraintestinal infections in Spanish and French humans in 2015 and 2016. A total of 28 (14.2%) isolates were classified as MDR, associated with B1, D, and E phylogroups, and included 24 clones, of which eight had also been identified among the human clinical isolates. We selected 23 ST372 strains, 21 from healthy dogs, and two from human clinical isolates for whole genome sequencing and built an SNP-tree with these 23 genomes and 174 genomes (128 from canine strains and 46 from human strains) obtained from public databases. These 197 genomes were segregated into six clusters. Cluster 1 comprised 74.6% of the strain genomes, mostly composed of canine strain genomes (p < 0.00001). Clusters 4 and 6 also included canine strain genomes, while clusters 2, 3, and 5 were significantly associated with human strain genomes. Finding several common clones and clone-related serotypes in dogs and humans suggests a potentially bidirectional clone transfer that argues for the one health perspective.
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Affiliation(s)
- Saskia-Camille Flament-Simon
- Laboratorio de Referencia de E. coli (LREC), Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela (USC), 27002 Lugo, Spain; (S.-C.F.-S.); (V.G.); (J.E.B.); (M.B.); (J.D.-G.)
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain;
| | - María de Toro
- Plataforma de Genómica y Bioinformática, Centro de Investigación Biomédica de La Rioja (CIBIR), 26006 Logroño, Spain;
| | - Vanesa García
- Laboratorio de Referencia de E. coli (LREC), Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela (USC), 27002 Lugo, Spain; (S.-C.F.-S.); (V.G.); (J.E.B.); (M.B.); (J.D.-G.)
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain;
| | - Jesús E. Blanco
- Laboratorio de Referencia de E. coli (LREC), Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela (USC), 27002 Lugo, Spain; (S.-C.F.-S.); (V.G.); (J.E.B.); (M.B.); (J.D.-G.)
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain;
| | - Miguel Blanco
- Laboratorio de Referencia de E. coli (LREC), Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela (USC), 27002 Lugo, Spain; (S.-C.F.-S.); (V.G.); (J.E.B.); (M.B.); (J.D.-G.)
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain;
| | - María Pilar Alonso
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain;
- Unidade de Microbioloxía, Hospital Universitario Lucus Augusti (HULA), 27003 Lugo, Spain
| | - Ana Goicoa
- Servicio de Medicina Interna, Hospital Veterinario Universitario Rof Codina, USC, 27002 Lugo, Spain;
- Departamento de Anatomía, Producción Animal e Ciencias Clínicas Veterinarias, USC, 27002 Lugo, Spain
| | - Juan Díaz-González
- Laboratorio de Referencia de E. coli (LREC), Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela (USC), 27002 Lugo, Spain; (S.-C.F.-S.); (V.G.); (J.E.B.); (M.B.); (J.D.-G.)
| | | | - Jorge Blanco
- Laboratorio de Referencia de E. coli (LREC), Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela (USC), 27002 Lugo, Spain; (S.-C.F.-S.); (V.G.); (J.E.B.); (M.B.); (J.D.-G.)
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain;
- Correspondence:
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Loncaric I, Misic D, Szostak MP, Künzel F, Schäfer-Somi S, Spergser J. Broad-Spectrum Cephalosporin-Resistant and/or Fluoroquinolone-Resistant Enterobacterales Associated with Canine and Feline Urogenital Infections. Antibiotics (Basel) 2020; 9:E387. [PMID: 32645942 PMCID: PMC7399855 DOI: 10.3390/antibiotics9070387] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/24/2020] [Accepted: 07/03/2020] [Indexed: 12/31/2022] Open
Abstract
The aim of the present study was to characterize Enterobacterales resistant to 3rd and 4th generation cephalosporins, carbapenems and/or fluoroquinolones, isolated from dogs and cats with urogenital infections. In total, 36 strains (Escherichia coli (n = 28), Klebsiella pneumoniae (n = 3), Serratia marcescens, Raoultella ornithinolytica, Proteus mirabilis, Citrobacter portucalensis and Enterobacter cloacae (each n = 1)) were included in the present study, 28 from Austria and 8 from Serbia. Isolates were characterized by a polyphasic approach including susceptibility pheno- and genotyping and microarray-based assays. Escherichia (E.) coli isolates were additionally characterized by two-locus (fumC and fimH) sequence phylotyping and multi-locus sequence typing (MLST) of selected isolates. MLST of carbapenem-resistant Enterobacter cloacae isolates was also performed. Among E. coli, the most dominant phylogenetic group was B1 (27.8%), followed by C, (16.6%), A and Clade II (5.5% each), B2 and F (2.77% each). The most predominant β-lactam resistance genes were blaTEM (70%) and blaCTX-M (38.8%), blaCMY (25%). blaNDM was detected in one carbapenem-resistant Enterobacter cloacae ST114. The most common ST among selected E. coli was 744 (10.7% isolates). The pandemic clones ST131 and ST648 carrying CTX-M-15 were also detected. Remaining STs belonged to 469, 1287, 1463 and 1642. E. coli clonotyping revealed 20 CH types. Based on the presence of certain virulence genes, three isolates were categorized as ExPEC/UPEC. The most prevalent virulence factors were fimH detected in 61%, iucD and iss both in 55%, iroN in 27.8%, papC in 13.8% and sat in 8.3% isolates.
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Affiliation(s)
- Igor Loncaric
- Institute of Microbiology, University of Veterinary Medicine, 1210 Vienna, Austria; (M.P.S.); (J.S.)
| | - Dusan Misic
- Faculty of Biotechnology and Food Science, Wroclaw University of Environmental and Life Sciences, 51-630 Wrocław, Poland;
- Faculty of Veterinary Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Michael P. Szostak
- Institute of Microbiology, University of Veterinary Medicine, 1210 Vienna, Austria; (M.P.S.); (J.S.)
| | - Frank Künzel
- Clinic for Small Animals, Internal Medicine Unit, University of Veterinary Medicine, 1210 Vienna, Austria;
| | - Sabine Schäfer-Somi
- Department for Small Animals and Horses, Platform for AI and ET, University of Veterinary Medicine, 1210 Vienna, Austria;
| | - Joachim Spergser
- Institute of Microbiology, University of Veterinary Medicine, 1210 Vienna, Austria; (M.P.S.); (J.S.)
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Zingali T, Chapman TA, Webster J, Roy Chowdhury P, Djordjevic SP. Genomic Characterisation of a Multiple Drug Resistant IncHI2 ST4 Plasmid in Escherichia coli ST744 in Australia. Microorganisms 2020; 8:microorganisms8060896. [PMID: 32545892 PMCID: PMC7355605 DOI: 10.3390/microorganisms8060896] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 01/16/2023] Open
Abstract
Antibiotic resistance genes (ARGs) including those from the blaCTX-M family and mcr-1 that encode resistance to extended spectrum β–lactams and colistin, respectively, have been linked with IncHI2 plasmids isolated from swine production facilities globally but not in IncHI2 plasmids from Australia. Here we describe the first complete sequence of a multiple drug resistance Australian IncHI2-ST4 plasmid, pTZ41_1P, from a commensal E. coli from a healthy piglet. pTZ41_1P carries genes conferring resistance to heavy-metals (copper, silver, tellurium and arsenic), β-lactams, aminoglycosides and sulphonamides. The ARGs reside within a complex resistance locus (CRL) that shows considerable sequence identity to a CRL in pSDE_SvHI2, an IncHI2:ST3 plasmid from an enterotoxigenic E. coli with serotype O157:H19 of porcine origin that caused substantial losses to swine production operations in Australia in 2007. pTZ41_1P is closely related to IncHI2 plasmids found in E. coli and Salmonella enterica from porcine, avian and human sources in Europe and China but it does not carry genes encoding resistance to clinically-important antibiotics. We identified regions of IncHI2 plasmids that contribute to the genetic plasticity of this group of plasmids and highlight how they may readily acquire new resistance gene cargo. Genomic surveillance should be improved to monitor IncHI2 plasmids.
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Affiliation(s)
- Tiziana Zingali
- The ithree Institute, University of Technology Sydney, City Campus, Ultimo, NSW 2007, Australia; (T.Z.); (P.R.C.)
- Australian Centre for Genomic Epidemiological Microbiology, University of Technology Sydney, P.O. Box 123, Broadway, NSW 2007, Australia
| | - Toni A. Chapman
- NSW Department of Primary Industries, Elizabeth MacArthur Agricultural Institute, Menangle, NSW 2568, Australia; (T.A.C.); (J.W.)
| | - John Webster
- NSW Department of Primary Industries, Elizabeth MacArthur Agricultural Institute, Menangle, NSW 2568, Australia; (T.A.C.); (J.W.)
| | - Piklu Roy Chowdhury
- The ithree Institute, University of Technology Sydney, City Campus, Ultimo, NSW 2007, Australia; (T.Z.); (P.R.C.)
- Australian Centre for Genomic Epidemiological Microbiology, University of Technology Sydney, P.O. Box 123, Broadway, NSW 2007, Australia
| | - Steven P. Djordjevic
- The ithree Institute, University of Technology Sydney, City Campus, Ultimo, NSW 2007, Australia; (T.Z.); (P.R.C.)
- Australian Centre for Genomic Epidemiological Microbiology, University of Technology Sydney, P.O. Box 123, Broadway, NSW 2007, Australia
- Correspondence: ; Tel.: +61-2-9514-4127
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Dehbashi S, Pourmand MR, Alikhani MY, Asl SS, Arabestani MR. Coordination of las regulated virulence factors with Multidrug-Resistant and extensively drug-resistant in superbug strains of P. aeruginosa. Mol Biol Rep 2020; 47:4131-4143. [PMID: 32474845 DOI: 10.1007/s11033-020-05559-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 05/26/2020] [Indexed: 12/21/2022]
Abstract
Successful pathogenicity often resulted from a complicated association between virulence and antibiotic resistance in Pseudomonas aeruginosa infections. Therefore, the current study aimed to investigate the relationship between the las system and antibiotic resistance. Seventy-three (73) P. aeruginosa isolates were collected from burn wounds (26.02%), blood cultures (30.13%), catheters (12.32%), and urine culture (31.50%). Among the 73 collected isolates, 22 isolates were considered as multi-drug resistant (MDR) and 11 isolates as extensively-drug resistant (XDR). Furthermore, phenazines and LasA protease were detected among 21.91% and 32.87% of isolates, respectively. Quantitative real-time PCR assessment of KPC, MBL, and lasI/R indicated that resistance and virulence factors are more expressed in XDR strains than MDR strains. Also, the expression level of KPC and MBL reduced in non-biofilm forming strains. However, increased expression levels of lasI, lasR, and the KPC genes were observed in LasA and LasB protease producing strains. Interestingly, 16 known sequence types (including ST108, ST260, ST217) and three novel STs (ST2452, ST2427, and ST2542) were characterized among the collected isolates, which are related to the virulence and resistance. In MDR-XDR strains, a strong correlation between lasI/R and the variants of antibiotic resistance genes was found. In conclusion, the pathogenicity of P. aeruginosa may increase the prevalence of antibiotic-resistant strains.
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Affiliation(s)
- Sanaz Dehbashi
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Reza Pourmand
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Yousef Alikhani
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Sara Soleimani Asl
- Department of Anatomy, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Reza Arabestani
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
- Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
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Virulence Potential of a Multidrug-Resistant Escherichia coli Strain Belonging to the Emerging Clonal Group ST101-B1 Isolated from Bloodstream Infection. Microorganisms 2020; 8:microorganisms8060827. [PMID: 32486334 PMCID: PMC7355805 DOI: 10.3390/microorganisms8060827] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 02/07/2023] Open
Abstract
Escherichia coli EC121 is a multidrug-resistant (MDR) strain isolated from a bloodstream infection of an inpatient with persistent gastroenteritis and T-zone lymphoma that died due to septic shock. Despite causing an extraintestinal infection, previous studies showed that it did not have the usual characteristics of an extraintestinal pathogenic E. coli. Instead, it belonged to phylogenetic group B1 and harbored few known virulence genes. To evaluate the pathogenic potential of strain EC121, an extensive genome sequencing and in vitro characterization of various pathogenicity-associated properties were performed. The genomic analysis showed that strain EC121 harbors more than 50 complete virulence genetic clusters. It also displays the capacity to adhere to a variety of epithelial cell lineages and invade T24 bladder cells, as well as the ability to form biofilms on abiotic surfaces, and survive the bactericidal serum complement activity. Additionally, EC121 was shown to be virulent in the Galleria mellonella model. Furthermore, EC121 is an MDR strain harboring 14 antimicrobial resistance genes, including blaCTX-M-2. Completing the scenario, it belongs to serotype O154:H25 and to sequence type 101-B1, which has been epidemiologically linked to extraintestinal infections as well as to antimicrobial resistance spread. This study with E. coli strain EC121 shows that clinical isolates considered opportunistic might be true pathogens that go underestimated.
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Dupouy V, Abdelli M, Moyano G, Arpaillange N, Bibbal D, Cadiergues MC, Lopez-Pulin D, Sayah-Jeanne S, de Gunzburg J, Saint-Lu N, Gonzalez-Zorn B, Andremont A, Bousquet-Mélou A. Prevalence of Beta-Lactam and Quinolone/Fluoroquinolone Resistance in Enterobacteriaceae From Dogs in France and Spain-Characterization of ESBL/pAmpC Isolates, Genes, and Conjugative Plasmids. Front Vet Sci 2019; 6:279. [PMID: 31544108 PMCID: PMC6730528 DOI: 10.3389/fvets.2019.00279] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/07/2019] [Indexed: 01/01/2023] Open
Abstract
Quantitative data on fecal shedding of antimicrobial-resistant bacteria are crucial to assess the risk of transmission from dogs to humans. Our first objective was to investigate the prevalence of quinolone/fluoroquinolone-resistant and beta-lactam-resistant Enterobacteriaceae in dogs in France and Spain. Due to the particular concern about possible transmission of extended-spectrum cephalosporin (ESC)-resistant isolates from dogs to their owners, we characterized the ESBL/pAmpC producers collected from dogs. Rectal swabs from 188 dogs, without signs of diarrhea and that had not received antimicrobials for 4 weeks before the study, were quantified for total and resistant Enterobacteriaceae on selective media alone or containing relevant antibiotic concentrations. Information that might explain antibiotic resistance was collected for each dog. Extended-spectrum cephalosporin-resistant isolates were subjected to bacterial species identification (API20E), genetic lineage characterization (MLST), ESBL/pAmpC genes identification (sequencing), and plasmid characterization (pMLST). Regarding beta-lactam resistance, amoxicillin- (AMX) and cefotaxime- (CTX) resistant Enterobacteriaceae were detected in 70 and 18% of the dogs, respectively, whereas for quinolone/fluoroquinolone-resistance, Nalidixic acid- (NAL) and ciprofloxacin- (CIP) resistant Enterobacteriaceae were detected in 36 and 18% of the dogs, respectively. Medical rather than preventive consultation was a risk marker for the presence of NAL and CIP resistance. CTX resistance was mainly due to a combination of specific ESBL/pAmpC genes and particular conjugative plasmids already identified in human patients: bla CTX-M-1/IncI1/ST3 (n = 4), bla CMY-2/IncI1/ST12 (n = 2), and bla CTX-M-15/IncI1/ST31 (n = 1). bla SHV-12 (n = 3) was detected in various plasmid lineages (InI1/ST3, IncI1/ST26, and IncFII). ESBL/pAmpC plasmids were located in different genetic lineages of E. coli, with the exception of two strains in France (ST6998) and two in Spain (ST602). Our study highlights dogs as a potential source of Q/FQ-resistant and ESBL/pAmpC-producing bacteria that might further disseminate to humans, and notably a serious risk of future acquisition of CTX-M-1 and CMY-2 plasmids by the owners of dogs.
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Affiliation(s)
| | | | - Gabriel Moyano
- Departamento de Sanidad Animal, Facultad de Veterinaria y Centro de Vigilancia Sanitaria Veterinaria (VISAVET), Universidad Complutense de Madrid, Madrid, Spain
| | | | - Delphine Bibbal
- InTheRes, Université de Toulouse, INRA, ENVT, Toulouse, France
| | | | | | | | | | | | - Bruno Gonzalez-Zorn
- Departamento de Sanidad Animal, Facultad de Veterinaria y Centro de Vigilancia Sanitaria Veterinaria (VISAVET), Universidad Complutense de Madrid, Madrid, Spain
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Extended-Spectrum Beta-Lactamase (ESBL)-Producing Escherichia coli Isolated from Flies in the Urban Center of Berlin, Germany. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16091530. [PMID: 31052188 PMCID: PMC6539871 DOI: 10.3390/ijerph16091530] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/18/2019] [Accepted: 04/19/2019] [Indexed: 12/29/2022]
Abstract
Background: The monitoring of antimicrobial resistance (AMR) in microorganisms that circulate in the environment is an important topic of scientific research and contributes to the development of action plans to combat the spread of multidrug-resistant (MDR) bacteria. As a synanthropic vector for multiple pathogens and a reservoir for AMR, flies can be used for surveillance. Methods: We collected 163 flies in the inner city of Berlin and examined them for extended-spectrum β-lactamase (ESBL)-producing Escherichia coli genotypically and phenotypically. Results: The prevalence of ESBL-producing E. coli in flies was 12.9%. Almost half (47.6%) of the ESBL-positive samples showed a co-resistance to ciprofloxacin. Resistance to carbapenems or colistin was not detected. The predominant ESBL-type was CTX-M-1, which is associated with wildlife, livestock, and companion animals as a potential major source of transmission of MDR E. coli to flies. Conclusions: This field study confirms the permanent presence of ESBL-producing E. coli in an urban fly population. For continuous monitoring of environmental contamination with multidrug-resistant (MDR) bacteria, flies can be used as indicators without much effort.
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