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Phenotypic and Genotypic Analysis of Antimicrobial Resistance in Escherichia coli Recovered from Feedlot Beef Cattle in Australia. Animals (Basel) 2022; 12:ani12172256. [PMID: 36077976 PMCID: PMC9454709 DOI: 10.3390/ani12172256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/29/2022] [Accepted: 08/29/2022] [Indexed: 11/30/2022] Open
Abstract
This study investigated the antimicrobial resistance (AMR) profile of fecal Escherichia coli isolates from beef cattle (n = 150) at entry and exit from an Australian feedlot. Sample plating on MacConkey agar and Brilliance ESBL agar differentiated generic from extended-spectrum β-lactamase (ESBL)-producing E. coli, respectively. Resistance profiles were determined by minimum inhibitory concentration (MIC) testing and further analyzed by whole-genome sequencing (WGS). At entry, the prevalence of antimicrobial resistance to amoxicillin/clavulanic acid, ampicillin, streptomycin, and trimethoprim/sulfamethoxazole was very low (0.7%, each). At the exit, the resistance prevalence was moderate to tetracycline (17.8%) and low to ampicillin (5.4%), streptomycin (4.7%), and sulfisoxazole (3.9%). The most common AMR genes observed in phenotypically resistant isolates were tet(B) (43.2%), aph(3″)-Ib and aph(6)-Id (32.4%), blaTEM-1B, and sul2 (24.3%, each), which are responsible for resistance to tetracyclines, aminoglycosides, β-lactams, and sulfonamides, respectively. The ESBL-producing E. coli were recovered from one sample (0.7%) obtained at entry and six samples (4.0%) at the exit. The ESBL-producing E. coli harbored blaTEM (29.7%), blaCTX m(13.5%), and blaCMY (5.4%). The resistance phenotypes were highly correlated with resistance genotypes (r ≥ 0.85: p < 0.05). This study demonstrated that E. coli isolated from feedlot beef cattle can harbour AMR genes, but the low incidence of medically important resistance reflected the prudent antimicrobial use in the Australian industry.
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Kurittu P, Khakipoor B, Jalava J, Karhukorpi J, Heikinheimo A. Whole-Genome Sequencing of Extended-Spectrum Beta-Lactamase-Producing Escherichia coli From Human Infections in Finland Revealed Isolates Belonging to Internationally Successful ST131-C1-M27 Subclade but Distinct From Non-human Sources. Front Microbiol 2022; 12:789280. [PMID: 35058905 PMCID: PMC8764355 DOI: 10.3389/fmicb.2021.789280] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 12/10/2021] [Indexed: 11/13/2022] Open
Abstract
Antimicrobial resistance (AMR) is a growing concern in public health, particularly for the clinically relevant extended-spectrum beta-lactamase (ESBL) and AmpC-producing Enterobacteriaceae. Studies describing ESBL-producing Escherichia coli clinical samples from Finland to the genomic level and investigation of possible zoonotic transmission routes are scarce. This study characterizes ESBL-producing E. coli from clinical samples in Finland using whole genome sequencing (WGS). Comparison is made between animal, food, and environmental sources in Finland to gain insight into potential zoonotic transmission routes and to recognize successful AMR genes, bacterial sequence types (STs), and plasmids. ESBL-producing E. coli isolates (n = 30) obtained from the Eastern Finland healthcare district between 2018 and 2020 underwent WGS and were compared to sequences from non-human and healthy human sources (n = 67) isolated in Finland between 2012 and 2018. A majority of the clinical isolates belonged to ST131 (n = 21; 70%), of which 19 represented O25:H4 and fimH30 allele, and 2 O16:H5 and fimH41 allele. Multidrug resistance was common, and the most common bla gene identified was bla CTX-M-27 (n = 14; 47%) followed by bla CTX-M-15 (n = 10; 33%). bla CTX-M-27 was identified in 13 out of 21 isolates representing ST131, with 12 isolates belonging to a recently discovered international E. coli ST131 C1-M27 subclade. Isolates were found to be genetically distinct from non-human sources with core genome multilocus sequence typing based analysis. Most isolates (n = 26; 87%) possessed multiple replicons, with IncF family plasmids appearing in 27 (90%) and IncI1 in 5 (17%) isolates. IncF[F1:A2:B20] replicon was identified in 11, and IncF[F-:A2:B20] in 4 isolates. The results indicate the ST131-C1-M27 clade gaining prevalence in Europe and provide further evidence of the concerning spread of this globally successful pathogenic clonal group. This study is the first to describe ESBL-producing E. coli in human infections with WGS in Finland and provides important information on global level of the spread of ESBL-producing E. coli belonging to the C1-M27 subclade. The results will help guide public health actions and guide future research.
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Affiliation(s)
- Paula Kurittu
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Banafsheh Khakipoor
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Jari Jalava
- Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Jari Karhukorpi
- Eastern Finland Laboratory Centre Joint Authority Enterprise (ISLAB), Joensuu, Finland
| | - Annamari Heikinheimo
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
- Finnish Food Authority, Seinäjoki, Finland
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Clemente L, Leão C, Moura L, Albuquerque T, Amaro A. Prevalence and Characterization of ESBL/AmpC Producing Escherichia coli from Fresh Meat in Portugal. Antibiotics (Basel) 2021; 10:antibiotics10111333. [PMID: 34827270 PMCID: PMC8615096 DOI: 10.3390/antibiotics10111333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 10/25/2022] Open
Abstract
The present study aimed to characterize the extended-spectrum β-lactamases and plasmid-mediated AmpC β-lactamases (ESBL/PMAβ) among Escherichia coli producers isolated from beef, pork, and poultry meat collected at retail, in Portugal. A total of 638 meat samples were collected and inoculated on selective medium for the search of E. coli resistant to 3rd generation cephalosporins. Isolates were characterized by antimicrobial susceptibility testing, molecular assays targeting ESBL/AmpC, plasmid-mediated quinolone resistance (PMQR), and plasmid-mediated colistin resistance (PMCR) encoding genes. The highest frequency of E. coli non-wild type to 3rd generation cephalosporins and fluoroquinolones was observed in broiler meat (30.3% and 93.3%, respectively). Overall, a diversity of acquired resistance mechanisms, were detected: blaESBL [blaCTX-M-1 (n = 19), blaCTX-M-15 (n = 4), blaCTX-M-32 (n = 12), blaCTX-M-55 (n = 8), blaCTX-M-65 (n = 4), blaCTX-M-27 (n = 2), blaCTX-M-9 (n = 1), blaCTX-M-14 (n = 11), blaSHV-12 (n = 27), blaTEM-52 (n = 1)], blaPMAβ [blaCMY-2 (n = 8)], PMQR [qnrB (n = 27), qnrS (n = 21) and aac(6')-Ib-type (n = 4)] and PMCR [mcr-1 (n = 8)]. Our study highlights that consumers may be exposed through the food chain to multidrug-resistant E. coli carrying diverse plasmid-mediated antimicrobial resistance genes, posing a great hazard to food safety and a public health risk.
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Affiliation(s)
- Lurdes Clemente
- Laboratory of Bacteriology and Mycology, National Reference Laboratory of Animal Health, INIAV—National Institute of Agrarian and Veterinary Research, 2780-157 Oeiras, Portugal; (C.L.); (L.M.); (T.A.); (A.A.)
- CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Science, University of Lisbon, 1300-477 Lisbon, Portugal
- Correspondence:
| | - Célia Leão
- Laboratory of Bacteriology and Mycology, National Reference Laboratory of Animal Health, INIAV—National Institute of Agrarian and Veterinary Research, 2780-157 Oeiras, Portugal; (C.L.); (L.M.); (T.A.); (A.A.)
- MED—Mediterranean Institute for Agriculture, Environment and Development, 7006-554 Évora, Portugal
| | - Laura Moura
- Laboratory of Bacteriology and Mycology, National Reference Laboratory of Animal Health, INIAV—National Institute of Agrarian and Veterinary Research, 2780-157 Oeiras, Portugal; (C.L.); (L.M.); (T.A.); (A.A.)
- Faculty of Pharmacy Science, University of Lisbon, FFUL, 1649-019 Lisbon, Portugal
| | - Teresa Albuquerque
- Laboratory of Bacteriology and Mycology, National Reference Laboratory of Animal Health, INIAV—National Institute of Agrarian and Veterinary Research, 2780-157 Oeiras, Portugal; (C.L.); (L.M.); (T.A.); (A.A.)
| | - Ana Amaro
- Laboratory of Bacteriology and Mycology, National Reference Laboratory of Animal Health, INIAV—National Institute of Agrarian and Veterinary Research, 2780-157 Oeiras, Portugal; (C.L.); (L.M.); (T.A.); (A.A.)
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Meijs AP, Gijsbers EF, Hengeveld PD, Dierikx CM, de Greeff SC, van Duijkeren E. ESBL/pAmpC-producing Escherichia coli and Klebsiella pneumoniae carriage among veterinary healthcare workers in the Netherlands. Antimicrob Resist Infect Control 2021; 10:147. [PMID: 34666826 PMCID: PMC8524829 DOI: 10.1186/s13756-021-01012-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 09/25/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Animals are a reservoir for ESBL/pAmpC-producing Escherichia coli/Klebsiella pneumoniae (ESBL-E/K). We investigated the association between occupational contact with different types of animals and the prevalence of ESBL-E/K carriage among veterinary healthcare workers, assessed molecular characteristics of ESBL-E/K, and followed-up on the ESBL-E/K carriage status of participants and their household members. METHODS Participants completed a questionnaire about their contact with animals at work and at home, health status, travel behaviour and hygiene, and sent in a faecal sample which was tested for the presence of ESBL-E/K. Resistance genes were typed using PCR and sequencing. ESBL-E/K positive participants and their household members were followed up after 6 months. Risk factors were analysed using multivariable logistic regression methods. RESULTS The prevalence of ESBL-E/K carriage was 9.8% (47/482; 95%CI 7.4-12.7). The most frequently occurring ESBL genes were blaCTX-M-15, blaCTX-M-14 and blaDHA-1. The predominant sequence type was ST131. None of the occupation related factors, such as contact with specific animal species, were significantly associated with ESBL-E/K carriage, whereas travel to Africa, Asia or Latin America in the past 6 months (OR 4.4), and stomach/bowel complaints in the past 4 weeks (OR 2.2) were. Sixteen of 33 initially ESBL-E/K positive participants (48.5%) tested positive again 6 months later, in 14 persons the same ESBL gene and E. coli ST was found. Four of 23 (17.4%) household members carried ESBL-E/K, in three persons this was the same ESBL gene and E. coli ST as in the veterinary healthcare worker. CONCLUSIONS Despite the absence of specific occupation related risk factors, ESBL-E/K carriage in veterinary healthcare workers was high compared to the prevalence in the general Dutch population (5%). This indicates that occupational contact with animals is a potential source of ESBL-E/K for the population at large.
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Affiliation(s)
- Anouk P Meijs
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720 BA, Bilthoven, The Netherlands.
| | - Esther F Gijsbers
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720 BA, Bilthoven, The Netherlands
| | - Paul D Hengeveld
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720 BA, Bilthoven, The Netherlands
| | - Cindy M Dierikx
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720 BA, Bilthoven, The Netherlands
| | - Sabine C de Greeff
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720 BA, Bilthoven, The Netherlands
| | - Engeline van Duijkeren
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720 BA, Bilthoven, The Netherlands
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Vannakovida C, Lampang KN, Chuammitri P, Punyapornwithaya V, Kreausukon K, Mektrirat R. Comparative occurrence and antibiogram of extended-spectrum β-lactamase-producing Escherichia coli among post-weaned calves and lactating cows from smallholder dairy farms in a parallel animal husbandry area. Vet World 2021; 14:1311-1318. [PMID: 34220136 PMCID: PMC8243667 DOI: 10.14202/vetworld.2021.1311-1318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 04/15/2021] [Indexed: 12/12/2022] Open
Abstract
Background and Aim: Inappropriate overuse of antimicrobials might be associated with the spreading of antimicrobial-resistant bacteria in animal-based food products. Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli have been recognized as an emerging global problem in a One Health approach. This study aimed to assess the occurrence and antimicrobial-susceptible profiles of ESBL-producing E. coli among post-weaned calves and lactating cows in a parallel animal husbandry area. Materials and Methods: Seventy-two pool fecal samples were collected from 36 smallholder dairy farms registered in Ban Hong Dairy Cooperatives, Lamphun Province, Thailand. Pre-enriched fecal samples were cultured in MacConkey agar supplemented with cefotaxime. The potential E. coli isolates were identified by not only biochemical tests but also polymerase chain reaction assay of the 16S rRNA gene. ESBL production was confirmed by the combination disk test. Antimicrobial susceptibility testing was performed by the Kirby–Bauer disk diffusion method. Results: The occurrence of ESBL-producing E. coli at the farm level was 80.56%. The different phenotypic antibiogram of ESBL-producing E. coli was observed among post-weaned calf and lactating cow specimens. The most frequent resistance patterns of ESBL-producing isolates from both groups were amoxicillin-ceftiofur-cephalexin-cephalothin-cloxacillin-streptomycin-oxytetracycline-sulfamethoxazole/trimethoprim. For the median zone diameter, enrofloxacin-resistant isolates with narrow zone diameter values from lactating cow specimens were particularly more than post-weaned calf specimens (p<0.05). Conclusion: These findings revealed the dynamic changes in ESBL-producing E. coli from calves and lactating cows in Lamphun Province, posing the inevitability to prevent bacterial transmission and optimize antimicrobial therapy in dairy farming.
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Affiliation(s)
- Chya Vannakovida
- Department of Veterinary Bioscience and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Kannika Na Lampang
- Department of Veterinary Bioscience and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Phongsakorn Chuammitri
- Department of Veterinary Bioscience and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Veerasak Punyapornwithaya
- Department of Food Animal Clinic, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Khwanchai Kreausukon
- Department of Food Animal Clinic, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Raktham Mektrirat
- Department of Veterinary Bioscience and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand.,Epidemiology Research Group of Infectious Disease, Chiang Mai University, Chiang Mai 50200, Thailand
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Ramos S, Silva V, Dapkevicius MDLE, Caniça M, Tejedor-Junco MT, Igrejas G, Poeta P. Escherichia coli as Commensal and Pathogenic Bacteria Among Food-Producing Animals: Health Implications of Extended Spectrum β-lactamase (ESBL) Production. Animals (Basel) 2020; 10:ani10122239. [PMID: 33260303 PMCID: PMC7761174 DOI: 10.3390/ani10122239] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 12/22/2022] Open
Abstract
Simple Summary This revision is about the problem of Escherichia coli as a commensal and pathogenic bacterium among food-producing animals and health implications. Escherichia coli may play an important ecological role and can be used as a bioindicator of antimicrobial resistance. All animal species used for food production, as well as humans, carry E. coli in their intestinal tract; plus, the genetic flexibility and adaptability of this bacteria to constantly changing environments allows it to acquire a great number of antimicrobial resistance mechanisms. The majority of E. coli strains are commensals inhabiting the intestinal tract of humans and warm-blooded animals and rarely causes diseases. However, E. coli also remains as one of the most frequent causes of several common bacterial infections in humans and animals. All over the word, antibiotic resistance is commonly detected among commensal bacteria from food-producing animals, raising important questions on the potential impact of antibiotic use in animals and the possible transmission of these resistant bacteria to humans through the food chain. The use, in food-producing animals, of antibiotics that are critically important in human medicine has been implicated in the emergence of new forms of resistant bacteria, including new strains of multidrug-resistant foodborne bacteria, such as extended spectrum β-lactamase (ESBL)-producing E. coli. Abstract Escherichia coli are facultative, anaerobic Gram-negative rods with many facets. Within resistant bacterial populations, they play an important ecological role and can be used as a bioindicator of antimicrobial resistance. All animal species used for food production, as well as humans, carry E. coli in their intestinal tracts; plus, the genetic flexibility and adaptability of this bacteria to constantly changing environments allows it to acquire a great number of antimicrobial resistance mechanisms. Thus, the prevalence of antimicrobial resistance in these commensal bacteria (or others, such as enterococci) can be a good indicator for the selective pressure caused by the use of antimicrobial agents, providing an early warning of the emergence of antimicrobial resistance in pathogens. As many as 90% of E. coli strains are commensals inhabiting the intestinal tracts of humans and warm-blooded animals. As a commensal, it lives in a mutually beneficial association with its hosts and rarely causes diseases. However, E. coli also remains as one of the most frequent causes of several common bacterial infections in humans and animals. In humans, it is the prominent cause of enteritis, community- and hospital-acquired urinary tract infection (UTI), septicemia, postsurgical peritonitis, and other clinical infections, such as neonatal meningitis, while, in farm animals, it is more prominently associated with diarrhea. On a global scale, E. coli can be considered the most important human pathogen, causing severe infection along with other major bacterial foodborne agents, such as Salmonella spp. and Campylobacter. Thus, the importance of resistance in E. coli, typically considered a benign commensal, should not be underestimated.
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Affiliation(s)
- Sónia Ramos
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (S.R.); (V.S.)
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal;
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal
| | - Vanessa Silva
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (S.R.); (V.S.)
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal;
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal
- Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, 2829-516 Lisbon, Portugal
| | - Maria de Lurdes 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
| | - Manuela Caniça
- National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections (NRL-AMR/HAI), Department of Infectious Diseases, National Institute of Health Dr Ricardo Jorge, Av. Padre Cruz, 1649-016 Lisbon, Portugal;
- Centre for the Studies of Animal Science, Institute of Agrarian and Agri-Food Sciences and Technologies, Oporto University, 4051-401 Oporto, Portugal
| | - María Teresa Tejedor-Junco
- Research Institute of Biomedical and Health Sciences, University of Las Palmas de Gran Canaria, 35001 Canary Islands, Spain;
- Department of Clinical Sciences, University of Las Palmas de Gran Canaria, 35001 Canary Islands, Spain
| | - Gilberto Igrejas
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal;
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal
- Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, 2829-516 Lisbon, Portugal
| | - Patrícia Poeta
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (S.R.); (V.S.)
- Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, 2829-516 Lisbon, Portugal
- Correspondence: ; Tel./Fax: +351-259-350-466
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Dantas Palmeira J, Ferreira HMN. Extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae in cattle production - a threat around the world. Heliyon 2020; 6:e03206. [PMID: 32042963 PMCID: PMC7002838 DOI: 10.1016/j.heliyon.2020.e03206] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/01/2019] [Accepted: 01/09/2020] [Indexed: 01/19/2023] Open
Abstract
Food producing animal is a global challenge in terms of antimicrobial resistance spread. Extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae are relevant opportunistic pathogens that may spread in many ecological niches of the One Health approach as human, animal and environment due to intestinal selection of antimicrobial resistant commensals in food production animals. Cattle production is a relevant ecological niche for selection of commensal bacteria with antimicrobial resistance from microbiota. Enterobacteriaceae show importance in terms of circulation of resistant-bacteria and antimicrobial resistance genes via food chain creating a resistance reservoir, setting up a threat for colonization of humans and consequent health risk. ESBL-producing Enterobacteriaceae are a threat in terms of human health responsible for life threatening outbreaks and silent enteric colonization of community populations namely the elder population. Food associated colonization is a risk difficult to handle and control. In a time of globalization of food trading, population intestinal colonization is a mirror of food production and in that sense this work aims to make a picture of ESBL-producing Enterobacteriaceae in animal production for food over the world in order to make some light in this reality of selection of resistant threats in food producing animal.
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Affiliation(s)
- Josman Dantas Palmeira
- Microbiology - Biological Sciences Department, Faculty of Pharmacy, University of Porto, Porto, Portugal.,UCIBIO - Research Unit on Applied Molecular Biosciences, REQUIMTE, Portugal
| | - Helena Maria Neto Ferreira
- Microbiology - Biological Sciences Department, Faculty of Pharmacy, University of Porto, Porto, Portugal.,UCIBIO - Research Unit on Applied Molecular Biosciences, REQUIMTE, Portugal
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Grönthal T, Österblad M, Eklund M, Jalava J, Nykäsenoja S, Pekkanen K, Rantala M. Sharing more than friendship - transmission of NDM-5 ST167 and CTX-M-9 ST69 Escherichia coli between dogs and humans in a family, Finland, 2015. ACTA ACUST UNITED AC 2019; 23. [PMID: 29991384 PMCID: PMC6152158 DOI: 10.2807/1560-7917.es.2018.23.27.1700497] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Carbapenemase-producing Enterobacteriaceae (CPE) have rarely been reported in dogs, and never in animals in Finland. However, in April 2015, two meropenem-resistant Escherichia coli were identified from two dogs in one family. Both dogs suffered from chronic otitis externa. Methods: Epidemiological and molecular investigations (pulsed-field gel electrophoresis (PFGE), multilocus sequence typing) were conducted to investigate the source of infection and transmission routes. Results: In both dogs and one family member New Delhi metallo-beta-lactamase (NDM-5)-producing multidrug-resistant ST167 E. coli was found. Whole genome sequencing confirmed that the isolates were identical or only had one or two allelic differences. Additionally, the dogs and humans of the family carried an identical extended-spectrum beta-lactamase (ESBL) CTX-M-group 9 E. coli ST69 strain, indicating interspecies transmission. While the original source remains unclear, human-to-canine transmission is possible. No carbapenems had been administered to the dogs, but exposure to numerous other antimicrobials likely sustained the bacteria and supported its propagation in the canine host. Conclusion: To our knowledge, canine clinical NDM-5 E. coli in Europe, and confirmed CPE transmission between dogs and humans have not been previously reported. The screening of veterinary Enterobacteriaceae isolates for carbapenem resistance is highly recommended.
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Affiliation(s)
- Thomas Grönthal
- Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Monica Österblad
- National Institute for Health and Welfare, Turku, Finland.,Sydspetsens miljöhälsa, Hangö, Finland
| | - Marjut Eklund
- Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Jari Jalava
- National Institute for Health and Welfare, Turku, Finland
| | | | | | - Merja Rantala
- Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
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Verkola M, Pietola E, Järvinen A, Lindqvist K, Kinnunen PM, Heikinheimo A. Low prevalence of zoonotic multidrug-resistant bacteria in veterinarians in a country with prudent use of antimicrobials in animals. Zoonoses Public Health 2019; 66:667-678. [PMID: 31232511 DOI: 10.1111/zph.12619] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 05/28/2019] [Accepted: 06/05/2019] [Indexed: 12/20/2022]
Abstract
The occurrence of multidrug-resistant zoonotic bacteria in animals has been increasing worldwide. Working in close contact with livestock increases the risk of carriage of these bacteria. We investigated the occurrence of extended-spectrum beta-lactamase (ESBL) and plasmidic AmpC beta-lactamase producing Enterobacteriaceae (ESBL/pAmpC-PE) and livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) in Finnish veterinarians (n = 320). In addition to microbiological samples, background information was collected. Bacterial whole genome sequencing was performed to deduce sequence types (STs), spa types and resistance genes of the isolates. In total, 3.0% (9/297) of the veterinarians carried ESBL producing Escherichia coli, with one ESBL producing E. coli isolate producing also AmpC. Seven different STs, sequences of several different plasmid groups as well as several different blaESBL/pAmpC genes existed in different combinations. No carbapenemase or colistin resistance genes were detected. MRSA was detected in 0.3% (1/320) of the samples. The strain belonged to LA-MRSA clonal complex (CC) 398 (ST398, spa type 011, lacking Panton-Valentine leukocidin genes). In conclusion, this study shows low carriage of multidrug-resistant zoonotic bacteria in Finnish veterinarians. However, finding LA-MRSA for the first time in a sample from a veterinarian in a country with prudent use of animal antimicrobials and regarding the recent rise of LA-MRSA on Finnish pig farms, a strong recommendation to protect people working in close contact with animals carrying LA-MRSA CC398 is given. Further studies are needed to explain why the prevalence of LA-MRSA in veterinarians is lower in Finland than in other European countries.
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Affiliation(s)
- Marie Verkola
- Elintarvikehygienian ja ympäristöterveyden osasto, Eläinlääketieteellinen tiedekunta, Helsingin yliopisto, Helsinki, Finland
| | - Eeva Pietola
- Elintarvikehygienian ja ympäristöterveyden osasto, Eläinlääketieteellinen tiedekunta, Helsingin yliopisto, Helsinki, Finland
| | - Asko Järvinen
- Infektiosairauksien linja, Tulehduskeskus, Helsingin yliopistollinen keskussairaala ja Helsingin yliopisto, Helsinki, Finland
| | - Kristian Lindqvist
- Yliopistopalvelut, Lähipalvelutiimi Viikki, Helsingin yliopisto, Helsinki, Finland
| | - Paula M Kinnunen
- Eläinlääketieteellisten biotieteiden osasto, Eläinlääketieteellinen tiedekunta, Helsingin yliopisto, Helsinki, Finland.,Ruokavirasto, Helsinki, Finland
| | - Annamari Heikinheimo
- Elintarvikehygienian ja ympäristöterveyden osasto, Eläinlääketieteellinen tiedekunta, Helsingin yliopisto, Helsinki, Finland.,Ruokavirasto, Helsinki, Finland
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10
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Tansawai U, Walsh TR, Niumsup PR. Extended spectrum ß-lactamase-producing Escherichia coli among backyard poultry farms, farmers, and environments in Thailand. Poult Sci 2019; 98:2622-2631. [DOI: 10.3382/ps/pez009] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 01/04/2019] [Indexed: 12/23/2022] Open
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11
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Franceschini G, Bottino M, Millet I, Martello E, Zaltron F, Favretto AR, Vonesch N, Tomao P, Mannelli A. Assessment of the Exposure of Turkey Farmers to Antimicrobial Resistance Associated with Working Practices. Vet Sci 2019; 6:E13. [PMID: 30717204 PMCID: PMC6466403 DOI: 10.3390/vetsci6010013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/24/2019] [Accepted: 01/29/2019] [Indexed: 11/17/2022] Open
Abstract
The objective of the present study was the identification of farming practices in the production of turkeys for human consumption, and their ranking in terms of the occupational probability of exposure to antimicrobial resistant (AMR) bacteria, for farm workers. We gathered evidence and data from scientific literature, on risk factors for AMR in farmers, and on the prevalence of those hazards across farming phases. We administered semi-structured interviews to public and private veterinarians in Northern Italy, to obtain detailed information on turkey farming phases, and on working practices. Data were then integrated into a semi-quantitative Failure Modes and Effect Analysis (FMEA). Those working practices, which are characterized by direct contact with numerous animals, and which are carried out frequently, with rare use of personal protection devices resulted as associated with the greatest probability of exposure to AMR. For methicillin resistant Staphylococcus aureus (MRSA), these included vaccination and administration of any individual therapy, and removal and milling of litter, given the exposure of farmers to high dust level. Indeed, levels of occupational exposure to MRSA are enhanced by its transmission routes, which include direct contact with animal, as well as airborne transmission. Level of exposure to extended spectrum beta lactamase (ESBL) is more strictly associated with direct contact and the oral-fecal route. Consequently, exposure to ESBL resulted and associated with the routinely tipping over of poults turned on their back, and with the individual administration of therapies.
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Affiliation(s)
| | - Marta Bottino
- Department of Veterinary Sciences, University of Turin, 10124 Turin, Italy.
| | - Ilary Millet
- Department of Veterinary Sciences, University of Turin, 10124 Turin, Italy.
| | - Elisa Martello
- Department of Veterinary Sciences, University of Turin, 10124 Turin, Italy.
| | - Francesca Zaltron
- Department of Law and Political, Economic and Social Sciences, University of Eastern Piedmont, 15121 Alessandria, Italy.
| | - Anna Rosa Favretto
- Department of Law and Political, Economic and Social Sciences, University of Eastern Piedmont, 15121 Alessandria, Italy.
| | - Nicoletta Vonesch
- Department of Medicine, Epidemiology, Occupational Hygiene and the Environment, National Institute for Insurance against Accidents at Work (INAIL), 00078 Monte Porzio Catone (Rome), Italy.
| | - Paola Tomao
- Department of Medicine, Epidemiology, Occupational Hygiene and the Environment, National Institute for Insurance against Accidents at Work (INAIL), 00078 Monte Porzio Catone (Rome), Italy.
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12
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Dame-Korevaar A, Fischer EAJ, van der Goot J, Stegeman A, Mevius D. Transmission routes of ESBL/pAmpC producing bacteria in the broiler production pyramid, a literature review. Prev Vet Med 2018; 162:136-150. [PMID: 30621893 DOI: 10.1016/j.prevetmed.2018.12.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 12/03/2018] [Accepted: 12/05/2018] [Indexed: 10/27/2022]
Abstract
Plasmid mediated Extended Spectrum Beta-Lactamase and AmpC Beta-Lactamase (ESBL/pAmpC) producing bacteria are resistant to beta-lactam antimicrobials and are widespread in humans, the environment and animals. Animals, especially broilers, are an important reservoir of ESBL/pAmpC producing bacteria. To control ESBL/pAmpC prevalence in broilers, transmission within the entire broiler production pyramid should be considered. This study, including 103 articles originating from two electronic databases, searched for evidence for possible routes of transmission of ESBL/pAmpC producing bacteria in the broiler production pyramid. Possible routes of transmission were categorised as 1) vertical between generations, 2) at hatcheries, 3) horizontal on farm, and 4) horizontal between farms and via the environment of farms. This review presents indications for transmission of ESBL/pAmpC producing bacteria for each of these routes. However, the lack of quantitative results in the literature did not allow an estimation of the relative contribution or magnitude of the different routes. Future research should be specifically targeted towards such information as it is crucial to guide reduction strategies for the spread of ESBL/pAmpC producing bacteria in the broiler production chain.
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Affiliation(s)
- Anita Dame-Korevaar
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands.
| | - Egil A J Fischer
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Jeanet van der Goot
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Lelystad, the Netherlands
| | - Arjan Stegeman
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Dik Mevius
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Lelystad, the Netherlands; Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
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13
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Terentjeva M, Streikiša M, Avsejenko J, Trofimova J, Kovaļenko K, Elferts D, Bērziņš A. Prevalence and Antimicrobial Resistance of Escherichia coli, Enterococcus spp. and the Major Foodborne Pathogens in Calves in Latvia. Foodborne Pathog Dis 2018; 16:35-41. [PMID: 30403535 DOI: 10.1089/fpd.2018.2523] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The aim of the present study was to detect the prevalence and antimicrobial resistance of fecal indicators and major foodborne pathogens in feces of calves and to identify the factors associated with increased prevalence of resistant bacteria on farms. Altogether, 180 rectal swabs were collected from 18 farms in Latvia. Samples were investigated to detect the prevalence and antimicrobial resistance of Escherichia coli, Enterococcus spp., Listeria monocytogenes, Yersinia enterocolitica, Salmonella spp., Staphylococcus aureus, and Campylobacter spp. Among all, 64% (74/110) of commensal E. coli, 100% (78/78) Enterococcus faecalis and 96% (22/23) Enterococcus faecium isolates were resistant at least to one antibiotic. The prevalence of extended-spectrum β-lactamase (ESBL)/AmpC-producing E. coli were 11.1% (20/180) with blaCTX-M, blaTEM, and blaCMY genes identified. Campylobacter jejuni (12.8%, 23/180) and Campylobacter coli (2.8%, 5/180) were the most resistant to tetracycline (61%, 14/23; 100%, 5/5) and fluoroquinolones (61%, 14/23; 100%, 5/5). Prevalence of L. monocytogenes was 0.6% (1/180) and S. aureus 1.7% (3/180). All samples were Salmonella and Y. enterocolitica negative. Farm size, bought calves, contact with other calves, and antimicrobial treatment of cows were associated with increased prevalence of resistant E. coli and Enterococcus spp. Despite the low overall usage of antimicrobials in Latvia, the high rates of antimicrobial resistance in fecal indicators and Campylobacter, in addition to the high prevalence of ESBL-producing E. coli, highlights the necessity for the prudent use of antimicrobials in dairy farms in Latvia.
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Affiliation(s)
- Margarita Terentjeva
- 1 Institute of Food and Environmental Hygiene, Faculty of Veterinary Medicine, Latvia University of Life Sciences and Technologies, Jelgava, Latvia
| | - Madara Streikiša
- 2 Institute of Food Safety, Animal Health and Environment BIOR, Riga, Latvia
| | - Jeļena Avsejenko
- 2 Institute of Food Safety, Animal Health and Environment BIOR, Riga, Latvia
| | - Jūlija Trofimova
- 2 Institute of Food Safety, Animal Health and Environment BIOR, Riga, Latvia
| | - Kaspars Kovaļenko
- 1 Institute of Food and Environmental Hygiene, Faculty of Veterinary Medicine, Latvia University of Life Sciences and Technologies, Jelgava, Latvia
| | - Didzis Elferts
- 3 Department of Botany and Ecology, Faculty of Biology, University of Latvia, Riga, Latvia
| | - Aivars Bērziņš
- 1 Institute of Food and Environmental Hygiene, Faculty of Veterinary Medicine, Latvia University of Life Sciences and Technologies, Jelgava, Latvia.,2 Institute of Food Safety, Animal Health and Environment BIOR, Riga, Latvia
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14
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Kawamura K, Hayashi K, Matsuo N, Kitaoka K, Kimura K, Wachino JI, Kondo T, Iinuma Y, Murakami N, Fujimoto S, Arakawa Y. Prevalence of CTX-M-Type Extended-Spectrum β-Lactamase-Producing Escherichia coli B2-O25-ST131 H30R Among Residents in Nonacute Care Facilities in Japan. Microb Drug Resist 2018; 24:1513-1520. [PMID: 29791251 DOI: 10.1089/mdr.2018.0068] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
We investigated the prevalence and characteristics of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli among 258 residents of long-term care facilities (LTCFs) in Japan. Out of 258 fecal samples collected from nine LTCFs between November 2015 and March 2017, we recovered 59 ESBL-producing E. coli isolates. All isolates carried blaCTX-M genes, mainly blaCTX-M-27 (42.4%), blaCTX-M-14 (23.7%), and blaCTX-M-15 (18.6%). The isolates showed 7 serotypes (STs), including ST131 (n = 49, 83.1%) and ST38 (n = 4, 6.8%), and 47 (79.7%) out of 49 isolates belonging to ST131 were identified as H30R. The 59 ESBL producers were divided into four groups, B2 (86.4%), D (8.5%), A (3.4%), and C (1.7%); 44 (74.6%) were epidemic clone B2-O25-ST131 H30R, of which 21, 11, and 6 harbored blaCTX-M-27, blaCTX-M-15, and blaCTX-M-14, respectively. Most plasmids were of IncF replicon types (n = 33), and 22 blaCTX-M-27-carrying plasmids showed multiple replicon types, including IncFII, FIA, and FIB. The ESBL producers were susceptible to imipenem, amikacin, and fosfomycin, but resistant to ceftazidime (49.2%), and ciprofloxacin (88.1%); in particular, the isolates harboring the blaCTX-M-15 gene showed significantly high resistance rate to ceftazidime (p < 0.01). Our findings indicate that a considerable proportion of the examined LTCF residents carried ESBL-producing E. coli isolates in feces and had high prevalence of epidemic clone B2-O25-ST131. Furthermore, continuous investigations would be very necessary to monitor actual carriage states of ESBL-producers among the LTCF residents from the viewpoint of both public health and healthcare viewpoints.
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Affiliation(s)
- Kumiko Kawamura
- 1Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Kengo Hayashi
- 1Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Nao Matsuo
- 1Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Kazuki Kitaoka
- 2Department of Bacteriology, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Kouji Kimura
- 2Department of Bacteriology, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Jun-Ichi Wachino
- 2Department of Bacteriology, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Takaaki Kondo
- 1Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Yoshitsugu Iinuma
- 3Department of Infectious Diseases, Kanazawa Medical University, Ishikawa, Japan
| | - Nobuo Murakami
- 4Center for Nutrition Support and Infection Control, Gifu University Hospital, Gifu, Japan
| | - Shuhei Fujimoto
- 5Department of Bacteriology and Bacterial Infection Division of Host Defence Mechanism, Tokai University School of Medicine, Kanagawa, Japan
| | - Yoshichika Arakawa
- 2Department of Bacteriology, Nagoya University Graduate School of Medicine, Aichi, Japan
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15
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The effect of Enterococcus faecium M74 feed additive on the extended-spectrum beta-lactamases/AmpC-positive Escherichia coli faecal counts in pre-weaned dairy calves. ACTA VET BRNO 2018. [DOI: 10.2754/avb201786040333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The increasing occurrence of extended-spectrum beta-lactamases and/or AmpC-positive Escherichia coli among different species of food producing animals poses a threat to public health. The animal gut plays a key role in the development of antibiotic resistant bacteria, allowing the selection, multiplication and subsequent contamination of the farm environment. However, applicable procedures for reducing such bacteria on farms are currently unavailable. The present study was aimed to determine whether a probiotic administration to new-born dairy calves would reduce faecal shedding of extended-spectrum beta-lactamases and/or AmpC-positive Escherichia coli during the pre-weaning period. Ten randomly assigned new-born Holstein calves on a dairy farm with recent evidence of high occurrence of AmpC-positive Escherichia coli among calves were treated by a probiotic mix within 12 h after birth. Nine control calves were not treated. Faecal samples were collected from each calf daily on days 2 through 5, and then on days 7, 10, and 14. The faecal samples were cultured, and the mean numbers of cefotaxime-resistant Escherichia coli and confirmed enteroaggregative Escherichia coli were compared between the two groups. Results suggested that the Enterococcus faecium probiotic treatment (Enterococcus faecium M74, NCIMB 11181) of new-born calves did not reduce the enteroaggregative Escherichia coli counts in their faeces. There was no significant difference in the shedding of enteroaggregative Escherichia coli between the probiotic-treated and control calves throughout the two-week study period.
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16
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Norizuki C, Kawamura K, Wachino JI, Suzuki M, Nagano N, Kondo T, Arakawa Y. Detection of Escherichia coli Producing CTX-M-1-Group Extended-Spectrum β-Lactamases from Pigs in Aichi Prefecture, Japan, between 2015 and 2016. Jpn J Infect Dis 2017; 71:33-38. [PMID: 29279444 DOI: 10.7883/yoken.jjid.2017.206] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We investigated the prevalence and characteristics of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli isolates from Japanese pigs. A total of 345 pig fecal specimens were collected from 30 farms in the Aichi prefecture of Japan between June 2015 and April 2016, and 22 unique ESBL-producing E. coli were isolated from 16 samples spanning 8 farms. The ESBL types included CTX-M-15 (54.5%), CTX-M-55 (27.2%), CTX-M-3 (0.9%), and CTX-M-14 (0.9%). The predominant plasmid replicon type was IncN, and the isolates carried blaCTX-M-55. Nine sequence type (ST)s, including ST117, ST1706, ST38, and ST10, were detected in the ESBL-producers, but no B2-O25-ST131 was found. ESBL producers were highly resistant to cefotaxime, ceftiofur, and tetracycline, but were susceptible to imipenem, amikacin, and fosfomycin (FOM), although 2 ST354 isolates showed resistance to ciprofloxacin. All 11 chloramphenicol-resistant isolates, including ST117 (n = 6) and ST38 (n = 3) isolates, harbored floR, and the 2 FOM-resistant ST38 isolates harbored fosA3. Our results suggest that pigs do not act as direct reservoirs in the transmission of ESBL genes to E. coli in humans. However, ST117 E. coli carrying IncN-type plasmids mediating blaCTX-M-55 were isolated from several different farms, suggesting the potential for future spread in Japan. Therefore, plasmid sequence analyses and continuous surveillance are necessary from an epidemiological point of view and are required to better protect against ESBL-producer transmission.
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Affiliation(s)
- Chihiro Norizuki
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine
| | - Kumiko Kawamura
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine
| | - Jun-Ichi Wachino
- Department of Bacteriology, Nagoya University Graduate School of Medicine
| | - Masahiro Suzuki
- Laboratory of Bacteriology, Aichi Prefectural Institute of Public Health
| | - Noriyuki Nagano
- Department of Health and Medical Sciences, Shinshu University Graduate School of Medicine
| | - Takaaki Kondo
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine
| | - Yoshichika Arakawa
- Department of Bacteriology, Nagoya University Graduate School of Medicine
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17
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New insights into resistance to colistin and third-generation cephalosporins of Escherichia coli in poultry, Portugal: Novel bla CTX-M-166 and bla ESAC genes. Int J Food Microbiol 2017; 263:67-73. [DOI: 10.1016/j.ijfoodmicro.2017.10.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/27/2017] [Accepted: 10/03/2017] [Indexed: 01/07/2023]
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