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Economou V, Delis G, Stavrou D, Gousia P, Tsitsos A, Mantzios T, Chouliara E, Kolovos N, Soultos N. Characterization of Extended Spectrum Cephalosporin-Resistant Escherichia coli Strains Isolated from Raw Poultry Carcasses in Catering Services in Northern Greece. Vet Sci 2023; 10:487. [PMID: 37624274 PMCID: PMC10459896 DOI: 10.3390/vetsci10080487] [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: 06/12/2023] [Revised: 07/22/2023] [Accepted: 07/24/2023] [Indexed: 08/26/2023] Open
Abstract
Antimicrobial resistance is considered a topic of utmost interest under the concept of "One Health", having severe implications in both human and veterinary medicine. Among the antibiotic-resistant bacteria, gram-negative bacteria, especially those belonging to the order of Enterobacterales (such as Escherichia coli), hold a prominent position in terms of both virulence and possessing/disseminating antimicrobial resistance (AMR) traits. The aim of this study was to examine the presence of extended-spectrum β-lactamase producing E. coli isolates in raw poultry carcasses collected from a university club. Five hundred raw poultry skin samples were collected from the Aristotle University of Thessaloniki (AUTh) club in Thessaloniki, Greece. A total of 64% of the samples were positive for the presence of extended-spectrum β-lactamase (ESBL)-producing E. coli. The isolates were further examined for their susceptibility to selected antibiotics by the disc diffusion method and were characterized as true ESBL, as producing class C cephalosporinases (AmpC) or "of unknown etiology" by the combination disc test. The 86 of the 120 isolates (71.67%) were classified as true ESBL, 24 (20.00%) as AmpC, and 10 (8.33%) as "of unknown etiology". The isolates were screened for the occurrence of β-lactamase genes (blaTEM, blaCTX-M, blaSHV, and blaOXA). Thirty-six isolates (32 ESBL- and 4 AmpC-phenotype) harbored both blaTEM and blaCTX-M genes, twenty-two isolates (among which 19 ESBL-phenotype and 2 AmpC-phenotype) harbored blaCTX-M only, whereas twenty-six (14 ESBL- and 12 AmpC-phenotype) isolates harbored blaTEM alone. No isolate harboring blaSHV or blaOXA was detected. The results demonstrate the existence of E. coli isolates producing extended-spectrum β-lactamases in poultry carcasses from Greece, pausing a risk for antibiotic resistance transfer to humans.
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Affiliation(s)
- Vangelis Economou
- Laboratory of Animal Food Products Hygiene and Veterinary Public Health, School of Veterinary Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece; (A.T.); (N.K.); (N.S.)
| | - Georgios Delis
- Laboratory of Pharmacology, School of Veterinary Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece;
| | - Dimitra Stavrou
- Hellenic Army Biological Research Center, 152 36 Athens, Greece;
| | - Panagiota Gousia
- Research Laboratories of Thessaloniki, Department of Food Testing, Hellenic Food Authority, 570 01 Thermi, Greece;
| | - Anestis Tsitsos
- Laboratory of Animal Food Products Hygiene and Veterinary Public Health, School of Veterinary Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece; (A.T.); (N.K.); (N.S.)
| | - Tilemachos Mantzios
- Unit of Avian Medicine, Clinic of Farm Animals, School of Veterinary Medicine, Aristotle University of Thessaloniki, 546 27 Thessaloniki, Greece;
| | - Eirini Chouliara
- Laboratory of Technology of Food of Animal Origin, School of Veterinary Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece;
| | - Nikolaos Kolovos
- Laboratory of Animal Food Products Hygiene and Veterinary Public Health, School of Veterinary Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece; (A.T.); (N.K.); (N.S.)
| | - Nikolaos Soultos
- Laboratory of Animal Food Products Hygiene and Veterinary Public Health, School of Veterinary Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece; (A.T.); (N.K.); (N.S.)
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Martins JCL, Pintor-Cora A, Alegría Á, Santos JA, Herrera-Arias F. Characterization of ESBL-producing Escherichia spp. and report of an mcr-1 colistin-resistance Escherichia fergusonni strain from minced meat in Pamplona, Colombia. Int J Food Microbiol 2023; 394:110168. [PMID: 36931145 DOI: 10.1016/j.ijfoodmicro.2023.110168] [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: 10/31/2022] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 03/12/2023]
Abstract
Foods of animal origin are increasingly considered a source of extended spectrum β-lactamase (ESBL) producing bacteria which can disseminate throughout the food chain and become a health concern for humans. This work aimed to evaluate the occurrence of ESBL-producing Escherichia coli in 100 retail minced meat samples taken in markets in Pamplona, Colombia. A total of 19 ESBL-producing isolates were obtained, 18 identified as E. coli and one as E. fergusonii. Fifteen isolates (78.9 %) carried blaCTX-M and blaTEM genes, one (5.2 %) blaSHV and blaTEM genes, one isolate (5.2 %) carried blaCTX-M and one (5.2 %) blaSHV alone. The majority of CTX-M-positive E. coli isolates carried the blaCTX-M-15 gene (13 isolates), being the blaCTX-M-9, blaCTX-M-2, and blaCTX-M-8 (one isolate each) also detected. Two SHV-positive isolates presented the blaSHV-5 and blaSHV-12 allele. The isolate identified as E. fergusonii was positive for blaCTX-M-65 gene and mcr-1 gene. Sixteen isolates (84.2 %) belonged to phylogroups A and B1 and grouped together in the phylogenetic tree obtained by MLST; phylogroups E and F were also detected. Transfer of ESBL resistance was demonstrated for the E. fergusonii isolate. Whole genome sequencing of this isolate revealed the presence of plasmids carrying additional resistance genes. This investigation showed the high prevalence of ESBL-producing E. coli in retail samples of minced meat. Also, the isolation of a strain of E. fergusonii is an additional concern, as some resistance genes are located in mobile elements, which can be transmitted to other bacteria. These evidences support the increasing public health concern considering the spreading of resistance genes through the food chain.
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Affiliation(s)
- Joana C L Martins
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, 24071 León, Spain
| | - Alberto Pintor-Cora
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, 24071 León, Spain.
| | - Ángel Alegría
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, 24071 León, Spain.
| | - Jesús A Santos
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, 24071 León, Spain.
| | - Fanny Herrera-Arias
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, 24071 León, Spain; Departamento de Microbiología, Facultad de Ciencias Básicas, Universidad de Pamplona, Pamplona, Colombia.
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β-Lactamase Producing Escherichia coli Encoding blaCTX-M and blaCMY Genes in Chicken Carcasses from Egypt. Foods 2023; 12:foods12030598. [PMID: 36766128 PMCID: PMC9914308 DOI: 10.3390/foods12030598] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/24/2023] [Accepted: 01/28/2023] [Indexed: 02/04/2023] Open
Abstract
Escherichia coli with multidrug resistance and β-lactamase genes may constitute a great public health hazard due to the potential for their transmission to humans through the food chain. This study determined the prevalence, antibiotic resistance profiles, phylogroups, and β-lactamase genes of E. coli isolates from chicken carcasses marketed in Mansoura, Egypt. Interestingly, E. coli was detected in 98% (98/100) of the chicken carcasses examined, which seemed among the highest contamination rates by E. coli worldwide. From the 425 genetically verified uidA gene-positive E. coli, 85 isolates were further studied for antimicrobial resistance profiles, phylogroups, and β-lactamase genes. Interestingly, 89.41% of E. coli (76/85) strains tested against 24 different antibiotics were multidrug-resistant. Of the examined 85 E. coli isolates, 22 (25.88%) isolates harbored blaCTX-M and were resistant to ampicillin, cefazoline, and ceftriaxone, while three of them were resistant to ceftazidime besides. Nine (10.59%) E. coli strains harbored AmpC- β-lactamase blaCMY and were resistant to ampicillin. One isolate co-carried blaCMY and blaCTX-M genes, though it was negative for the blaTEM gene. Of the 35 isolates that harbored either extended-spectrum β-lactamase (ESBL) and/or AmpC β-lactamase genes, six strains (17.14%) were assigned to pathogenic phylogroup F and one to phylogroup E, whereas 28 (80%) isolates belonged to commensal phylogenetic groups.
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Rabaan AA, Eljaaly K, Alhumaid S, Albayat H, Al-Adsani W, Sabour AA, Alshiekheid MA, Al-Jishi JM, Khamis F, Alwarthan S, Alhajri M, Alfaraj AH, Tombuloglu H, Garout M, Alabdullah DM, Mohammed EAE, Yami FSA, Almuhtaresh HA, Livias KA, Mutair AA, Almushrif SA, Abusalah MAHA, Ahmed N. An Overview on Phenotypic and Genotypic Characterisation of Carbapenem-Resistant Enterobacterales. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:1675. [PMID: 36422214 PMCID: PMC9696003 DOI: 10.3390/medicina58111675] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/16/2022] [Accepted: 11/18/2022] [Indexed: 08/26/2023]
Abstract
Improper use of antimicrobials has resulted in the emergence of antimicrobial resistance (AMR), including multi-drug resistance (MDR) among bacteria. Recently, a sudden increase in Carbapenem-resistant Enterobacterales (CRE) has been observed. This presents a substantial challenge in the treatment of CRE-infected individuals. Bacterial plasmids include the genes for carbapenem resistance, which can also spread to other bacteria to make them resistant. The incidence of CRE is rising significantly despite the efforts of health authorities, clinicians, and scientists. Many genotypic and phenotypic techniques are available to identify CRE. However, effective identification requires the integration of two or more methods. Whole genome sequencing (WGS), an advanced molecular approach, helps identify new strains of CRE and screening of the patient population; however, WGS is challenging to apply in clinical settings due to the complexity and high expense involved with this technique. The current review highlights the molecular mechanism of development of Carbapenem resistance, the epidemiology of CRE infections, spread of CRE, treatment options, and the phenotypic/genotypic characterisation of CRE. The potential of microorganisms to acquire resistance against Carbapenems remains high, which can lead to even more susceptible drugs such as colistin and polymyxins. Hence, the current study recommends running the antibiotic stewardship programs at an institutional level to control the use of antibiotics and to reduce the spread of CRE worldwide.
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Affiliation(s)
- Ali A. Rabaan
- Molecular Diagnostic Laboratory, Johns Hopkins Aramco Healthcare, Dhahran 31311, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
- Department of Public Health and Nutrition, The University of Haripur, Haripur 22610, Pakistan
| | - Khalid Eljaaly
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Pharmacy Practice and Science Department, College of Pharmacy, University of Arizona, Tucson, AZ 85716, USA
| | - Saad Alhumaid
- Administration of Pharmaceutical Care, Al-Ahsa Health Cluster, Ministry of Health, Al-Ahsa 31982, Saudi Arabia
| | - Hawra Albayat
- Infectious Disease Department, King Saud Medical City, Riyadh 7790, Saudi Arabia
| | - Wasl Al-Adsani
- Department of Medicine, Infectious Diseases Hospital, Kuwait City 63537, Kuwait
- Department of Infectious Diseases, Hampton Veterans Administration Medical Center, Hampton, VA 23667, USA
| | - Amal A. Sabour
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Maha A. Alshiekheid
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Jumana M. Al-Jishi
- Internal Medicine Department, Qatif Central Hospital, Qatif 635342, Saudi Arabia
| | - Faryal Khamis
- Infection Diseases Unit, Department of Internal Medicine, Royal Hospital, Muscat 1331, Oman
| | - Sara Alwarthan
- Department of Internal Medicine, College of Medicine, Imam Abdulrahman Bin Faisal University, Ammam 34212, Saudi Arabia
| | - Mashael Alhajri
- Department of Internal Medicine, College of Medicine, Imam Abdulrahman Bin Faisal University, Ammam 34212, Saudi Arabia
| | - Amal H. Alfaraj
- Pediatric Department, Abqaiq General Hospital, First Eastern Health Cluster, Abqaiq 33261, Saudi Arabia
| | - Huseyin Tombuloglu
- Department of Genetics Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam 34221, Saudi Arabia
| | - Mohammed Garout
- Department of Community Medicine and Health Care for Pilgrims, Faculty of Medicine, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Duaa M. Alabdullah
- Molecular Diagnostic Laboratory, Dammam Regional Laboratory and Blood Bank, Dammam 31411, Saudi Arabia
| | - Elmoeiz Ali Elnagi Mohammed
- Department of Clinical Laboratory Sciences, Prince Sultan Military College of Health Sciences, Dhahran 34313, Saudi Arabia
| | - Fatimah S. Al Yami
- Department of Medical Laboratory, King Fahad Military Medical Complex, Dhahran 34313, Saudi Arabia
| | - Haifa A. Almuhtaresh
- Department of Clinical Laboratories Services, Dammam Medical Complex, Dammam Health Network, Dammam 5343, Saudi Arabia
| | - Kovy Arteaga Livias
- Facultad de Ciencias de la Salud, Universidad Científica del Sur, Lima 15001, Peru
- Facultad de Medicina, Universidad Nacional Hermilio Valdizán, Huánuco 10000, Peru
| | - Abbas Al Mutair
- Research Center, Almoosa Specialist Hospital, Al-Ahsa 36342, Saudi Arabia
- College of Nursing, Princess Norah Bint Abdulrahman University, Riyadh 11564, Saudi Arabia
- School of Nursing, Wollongong University, Wollongong, NSW 2522, Australia
- Nursing Department, Prince Sultan Military College of Health Sciences, Dhahran 33048, Saudi Arabia
| | - Shawqi A. Almushrif
- Department of Microbiology and Hematology Laboratory, Dammam Comprehensive Screening Centre, Dammam 31433, Saudi Arabia
| | | | - Naveed Ahmed
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia
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Cheng MF, Ho PY, Wang JL, Tseng FC, Chang JT, Huang IF, Hung CH. Prevalence and household risk factors for fecal carriage of ESBL-producing, sequence type 131, and extraintestinal pathogenic Escherichia coli among children in southern Taiwan. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2022; 55:695-707. [PMID: 35513972 DOI: 10.1016/j.jmii.2022.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 03/01/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND The rapidly increasing prevalence of antimicrobial-resistant Escherichia coli (E. coli) is a global concern. This study determined the prevalence and risk factors for the fecal carriage of drug-resistant E. coli and extraintestinal pathogenic E. coli (ExPEC) among children. MATERIALS AND METHODS In this prospective study, stool samples from children aged 0-18 years were obtained within three days of hospitalization between April 2016 and March 2019. E. coli were selected and tested for extended-spectrum β-lactamase (ESBL)-production and antimicrobial susceptibility. Multilocus sequence typing, blaCTX-M gene groups and ExPEC were determined using polymerase chain reactions. Questionnaires were recorded for risk factor analysis. RESULTS Among 179 E. coli isolates, 44.1% were multi-drug resistant, 20.7% produced ESBL, and 50.3% were ExPEC. Children carrying ESBL-producing E. coli were younger than those carrying non-ESBL strains. Several anthropogenic factors, including drinking water process, pork consumption, pets and household density might be associated with ESBL-producing E. coli, sequence type (ST) 131 E. coli, or ExPEC fecal carriage. Compared with families who live in less crowded houses, participants with pets had a similar trend of higher risks of ESBL-producing E. coli, ST131 E. coli, and ExPEC fecal carriage among those living in houses accommodating relatively more people. CONCLUSIONS Children accounted for a large proportion of instances of feces carrying ESBL E. coli. In addition to antimicrobial control for people and livestocks, avenues of exposure, such as drinking water, food, pets, household density, and socioeconomic deprivation might present potentially novel opportunities to reduce the burden of nonsusceptible E. coli and ExPEC.
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Affiliation(s)
- Ming-Fang Cheng
- Institute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Fooyin University, Kaohsiung, Taiwan
| | - Pei-Yu Ho
- Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Jiun-Ling Wang
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Fan-Chen Tseng
- Department of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
| | - Jenn-Tzong Chang
- Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - I-Fei Huang
- Department of Pediatrics, Kaohsiung Pojen Hospital, Kaohsiung, Taiwan
| | - Chih-Hsin Hung
- Institute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung, Taiwan.
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Ferraresso J, Apostolakos I, Fasolato L, Piccirillo A. Third-generation cephalosporin (3GC) resistance and its association with Extra-intestinal pathogenic Escherichia coli (ExPEC). Focus on broiler carcasses. Food Microbiol 2022; 103:103936. [DOI: 10.1016/j.fm.2021.103936] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/26/2021] [Accepted: 11/04/2021] [Indexed: 11/04/2022]
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Martínez-Álvarez S, Sanz S, Olarte C, Hidalgo-Sanz R, Carvalho I, Fernández-Fernández R, Campaña-Burguet A, Latorre-Fernández J, Zarazaga M, Torres C. Antimicrobial Resistance in Escherichia coli from the Broiler Farm Environment, with Detection of SHV-12-Producing Isolates. Antibiotics (Basel) 2022; 11:antibiotics11040444. [PMID: 35453196 PMCID: PMC9024766 DOI: 10.3390/antibiotics11040444] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/19/2022] [Accepted: 03/23/2022] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial resistance is an important One Health challenge that encompasses the human, animal, and environmental fields. A total of 111 Escherichia coli isolates previously recovered from manure (n = 57) and indoor air (n = 54) samples from a broiler farm were analyzed to determine their phenotypes and genotypes of antimicrobial resistance and integron characterization; in addition, plasmid replicon analysis and molecular typing were performed in extended-spectrum-beta-lactamase (ESBL) producer isolates. A multidrug-resistance phenotype was detected in 46.8% of the isolates, and the highest rates of resistance were found for ampicillin, trimethoprim−sulfamethoxazole, and tetracycline (>40%); moreover, 15 isolates (13.5%) showed susceptibility to all tested antibiotics. None of the isolates showed imipenem and/or cefoxitin resistance. Twenty-three of the one hundred and eleven E. coli isolates (20.7%) were ESBL producers and carried the blaSHV-12 gene; one of these isolates was recovered from the air, and the remaining 22 were from manure samples. Most of ESBL-positive isolates carried the cmlA (n = 23), tet(A) (n = 19), and aac(6′)-Ib-cr (n = 11) genes. The following genetic lineages were identified among the ESBL-producing isolates (sequence type-phylogroup-clonotype): ST770-E-CH116−552 (n = 12), ST117-B2-CH45−97 (n = 4), ST68-E-CH26−382/49 (n = 3), ST68-E-CH26−49 (n = 1), and ST10992-A/B1-CH11−23/41/580 (n = 4); the latter two were detected for the first time in the poultry sector. At least two plasmid replicon types were detected in the ESBL-producing E. coli isolates, with IncF, IncF1B, IncK, and IncHI1 being the most frequently found. The following antimicrobial resistance genes were identified among the non-ESBL-producing isolates (number of isolates): blaTEM (58), aac(6′)-Ib-cr (6), qnrS (2), aac(3)-II (2), cmlA (6), tet(A)/tet(B) (22), and sul1/2/3 (51). Four different gene-cassette arrays were detected in the variable region of class 1 (dfrA1-aadA1, dfrA12-aadA2, and dfrA12-orf-aadA2-cmlA) and class 2 integrons (sat2-aadA1-orfX). This work reveals the worrying presence of antimicrobial-resistant E. coli in the broiler farm environment, with ESBL-producing isolates of SHV-12 type being extensively disseminated.
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Affiliation(s)
- Sandra Martínez-Álvarez
- Department of Agriculture and Food, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (S.S.); (C.O.); (R.H.-S.); (I.C.); (R.F.-F.); (A.C.-B.); (J.L.-F.); (M.Z.)
| | - Susana Sanz
- Department of Agriculture and Food, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (S.S.); (C.O.); (R.H.-S.); (I.C.); (R.F.-F.); (A.C.-B.); (J.L.-F.); (M.Z.)
| | - Carmen Olarte
- Department of Agriculture and Food, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (S.S.); (C.O.); (R.H.-S.); (I.C.); (R.F.-F.); (A.C.-B.); (J.L.-F.); (M.Z.)
| | - Raquel Hidalgo-Sanz
- Department of Agriculture and Food, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (S.S.); (C.O.); (R.H.-S.); (I.C.); (R.F.-F.); (A.C.-B.); (J.L.-F.); (M.Z.)
| | - Isabel Carvalho
- Department of Agriculture and Food, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (S.S.); (C.O.); (R.H.-S.); (I.C.); (R.F.-F.); (A.C.-B.); (J.L.-F.); (M.Z.)
- Department of Veterinary Sciences, University of Trás-os-Montes-and Alto Douro, 5000-801 Vila Real, Portugal
| | - Rosa Fernández-Fernández
- Department of Agriculture and Food, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (S.S.); (C.O.); (R.H.-S.); (I.C.); (R.F.-F.); (A.C.-B.); (J.L.-F.); (M.Z.)
| | - Allelen Campaña-Burguet
- Department of Agriculture and Food, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (S.S.); (C.O.); (R.H.-S.); (I.C.); (R.F.-F.); (A.C.-B.); (J.L.-F.); (M.Z.)
| | - Javier Latorre-Fernández
- Department of Agriculture and Food, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (S.S.); (C.O.); (R.H.-S.); (I.C.); (R.F.-F.); (A.C.-B.); (J.L.-F.); (M.Z.)
| | - Myriam Zarazaga
- Department of Agriculture and Food, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (S.S.); (C.O.); (R.H.-S.); (I.C.); (R.F.-F.); (A.C.-B.); (J.L.-F.); (M.Z.)
| | - Carmen Torres
- Department of Agriculture and Food, University of La Rioja, 26006 Logroño, Spain; (S.M.-Á.); (S.S.); (C.O.); (R.H.-S.); (I.C.); (R.F.-F.); (A.C.-B.); (J.L.-F.); (M.Z.)
- Correspondence:
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Savin M, Bierbaum G, Mutters NT, Schmithausen RM, Kreyenschmidt J, García-Meniño I, Schmoger S, Käsbohrer A, Hammerl JA. Genetic Characterization of Carbapenem-Resistant Klebsiella spp. from Municipal and Slaughterhouse Wastewater. Antibiotics (Basel) 2022; 11:antibiotics11040435. [PMID: 35453187 PMCID: PMC9027467 DOI: 10.3390/antibiotics11040435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/16/2022] [Accepted: 03/22/2022] [Indexed: 12/18/2022] Open
Abstract
Currently, human and veterinary medicine are threatened worldwide by an increasing resistance to carbapenems, particularly present in opportunistic Enterobacterales pathogens (e.g., Klebsiella spp.). However, there is a lack of comprehensive and comparable data on their occurrence in wastewater, as well as on the phenotypic and genotypic characteristics for various countries including Germany. Thus, this study aims to characterize carbapenem-resistant Klebsiella spp. isolated from municipal wastewater treatment plants (mWWTPs) and their receiving water bodies, as well as from wastewater and process waters from poultry and pig slaughterhouses. After isolation using selective media and determination of carbapenem (i.e., ertapenem) resistance using broth microdilution to apply epidemiological breakpoints, the selected isolates (n = 30) were subjected to WGS. The vast majority of the isolates (80.0%) originated from the mWWTPs and their receiving water bodies. In addition to ertapenem, Klebsiella spp. isolates exhibited resistance to meropenem (40.0%) and imipenem (16.7%), as well as to piperacillin-tazobactam (50.0%) and ceftolozan-tazobactam (50.0%). A high diversity of antibiotic-resistance genes (n = 68), in particular those encoding β-lactamases, was revealed. However, with the exception of blaGES-5-like, no acquired carbapenemase-resistance genes were detected. Virulence factors such as siderophores (e.g., enterobactin) and fimbriae type 1 were present in almost all isolates. A wide genetic diversity was indicated by assigning 66.7% of the isolates to 12 different sequence types (STs), including clinically relevant ones (e.g., ST16, ST252, ST219, ST268, ST307, ST789, ST873, and ST2459). Our study provides information on the occurrence of carbapenem-resistant, ESBL-producing Klebsiella spp., which is of clinical importance in wastewater and surface water in Germany. These findings indicate their possible dissemination in the environment and the potential risk of colonization and/or infection of humans, livestock and wildlife associated with exposure to contaminated water sources.
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Affiliation(s)
- Mykhailo Savin
- Institute for Hygiene and Public Health, University Hospital Bonn, 53127 Bonn, Germany;
- Institute of Animal Sciences, University of Bonn, 53115 Bonn, Germany;
- Correspondence: (M.S.); (J.A.H.)
| | - Gabriele Bierbaum
- Institute for Medical Microbiology, Immunology and Parasitology, Medical Faculty, University of Bonn, 53115 Bonn, Germany;
| | - Nico T. Mutters
- Institute for Hygiene and Public Health, University Hospital Bonn, 53127 Bonn, Germany;
| | - Ricarda Maria Schmithausen
- Department of Hygiene and Environmental Medicine, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany;
| | - Judith Kreyenschmidt
- Institute of Animal Sciences, University of Bonn, 53115 Bonn, Germany;
- Department of Fresh Produce Logistics, Hochschule Geisenheim University, 65366 Geisenheim, Germany
| | - Isidro García-Meniño
- Department for Biological Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany; (I.G.-M.); (S.S.); (A.K.)
- Laboratorio de Referencia de Escherichia coli (LREC), Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela (USC), 27002 Lugo, Spain
| | - Silvia Schmoger
- Department for Biological Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany; (I.G.-M.); (S.S.); (A.K.)
| | - Annemarie Käsbohrer
- Department for Biological Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany; (I.G.-M.); (S.S.); (A.K.)
- Unit for Veterinary Public Health and Epidemiology, University of Veterinary Medicine, AT-1210 Vienna, Austria
| | - Jens Andre Hammerl
- Department for Biological Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany; (I.G.-M.); (S.S.); (A.K.)
- Correspondence: (M.S.); (J.A.H.)
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9
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Lai CKC, Ng RWY, Leung SSY, Hui M, Ip M. Overcoming the rising incidence and evolving mechanisms of antibiotic resistance by novel drug delivery approaches - An overview. Adv Drug Deliv Rev 2022; 181:114078. [PMID: 34896131 DOI: 10.1016/j.addr.2021.114078] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 11/29/2021] [Accepted: 12/03/2021] [Indexed: 12/14/2022]
Abstract
Antimicrobial resistance is a normal evolutionary process for microorganisms. Antibiotics exerted accelerated selective pressure that hasten bacterial resistance through mutation, and acquisition external genes. These genes often carry multiple antibiotic resistant determinants allowing the recipient microbe an instant "super-bug" status. The extent of Antimicrobial Resistance (AMR) has reached a level of global crisis, existing antimicrobials are no long effective in treating infections caused by AMR pathogens. The great majority of clinically available antimicrobial agents are administered through oral and intra-venous routes. Overcoming antibacterial resistance by novel drug delivery approach offered new hopes, particularly in the treatment of AMR pathogens in sites less assessible through systemic circulation such as the lung and skin. In the current review, we will revisit the mechanism and incidence of important AMR pathogens. Finally, we will discuss novel drug delivery approaches including novel local antibiotic delivery systems, hybrid antibiotics, and nanoparticle-based antibiotic delivery systems.
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Affiliation(s)
- Christopher K C Lai
- Department of Microbiology, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, New Territories, Hong Kong Special Administrative Region.
| | - Rita W Y Ng
- Department of Microbiology, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, New Territories, Hong Kong Special Administrative Region.
| | - Sharon S Y Leung
- School of Pharmacy, The Chinese University of Hong Kong, New Territories, Hong Kong Special Administrative Region.
| | - Mamie Hui
- Department of Microbiology, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, New Territories, Hong Kong Special Administrative Region.
| | - Margaret Ip
- Department of Microbiology, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, New Territories, Hong Kong Special Administrative Region.
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10
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Galler H, Luxner J, Petternel C, Reinthaler FF, Habib J, Haas D, Kittinger C, Pless P, Feierl G, Zarfel G. Multiresistant Bacteria Isolated from Intestinal Faeces of Farm Animals in Austria. Antibiotics (Basel) 2021; 10:antibiotics10040466. [PMID: 33923903 PMCID: PMC8073873 DOI: 10.3390/antibiotics10040466] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 12/31/2022] Open
Abstract
In recent years, antibiotic-resistant bacteria with an impact on human health, such as extended spectrum β-lactamase (ESBL)-containing Enterobacteriaceae, methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE), have become more common in food. This is due to the use of antibiotics in animal husbandry, which leads to the promotion of antibiotic resistance and thus also makes food a source of such resistant bacteria. Most studies dealing with this issue usually focus on the animals or processed food products to examine the antibiotic resistant bacteria. This study investigated the intestine as another main habitat besides the skin for multiresistant bacteria. For this purpose, faeces samples were taken directly from the intestines of swine (n = 71) and broiler (n = 100) during the slaughter process and analysed. All samples were from animals fed in Austria and slaughtered in Austrian slaughterhouses for food production. The samples were examined for the presence of ESBL-producing Enterobacteriaceae, MRSA, MRCoNS and VRE. The resistance genes of the isolated bacteria were detected and sequenced by PCR. Phenotypic ESBL-producing Escherichia coli could be isolated in 10% of broiler casings (10 out of 100) and 43.6% of swine casings (31 out of 71). In line with previous studies, the results of this study showed that CTX-M-1 was the dominant ESBL produced by E. coli from swine (n = 25, 83.3%) and SHV-12 from broilers (n = 13, 81.3%). Overall, the frequency of positive samples with multidrug-resistant bacteria was lower than in most comparable studies focusing on meat products.
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Affiliation(s)
- Herbert Galler
- D&R Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria; (J.L.); (F.F.R.); (J.H.); (D.H.); (C.K.); (G.F.); (G.Z.)
- Correspondence: ; Tel.: +43-316-385-73619; Fax: +43-316-385-79637
| | - Josefa Luxner
- D&R Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria; (J.L.); (F.F.R.); (J.H.); (D.H.); (C.K.); (G.F.); (G.Z.)
| | - Christian Petternel
- Institute of Laboratory Diagnostics and Microbiology, Klinikum-Klagenfurt am Wörthersee, Feschnigstraße 11, 9020 Klagenfurt, Austria;
| | - Franz F. Reinthaler
- D&R Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria; (J.L.); (F.F.R.); (J.H.); (D.H.); (C.K.); (G.F.); (G.Z.)
| | - Juliana Habib
- D&R Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria; (J.L.); (F.F.R.); (J.H.); (D.H.); (C.K.); (G.F.); (G.Z.)
| | - Doris Haas
- D&R Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria; (J.L.); (F.F.R.); (J.H.); (D.H.); (C.K.); (G.F.); (G.Z.)
| | - Clemens Kittinger
- D&R Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria; (J.L.); (F.F.R.); (J.H.); (D.H.); (C.K.); (G.F.); (G.Z.)
| | - Peter Pless
- Animal Health Service of the Department of Veterinary Administration, Styrian Government, Friedrichgasse 9, 8010 Graz, Austria;
| | - Gebhard Feierl
- D&R Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria; (J.L.); (F.F.R.); (J.H.); (D.H.); (C.K.); (G.F.); (G.Z.)
| | - Gernot Zarfel
- D&R Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria; (J.L.); (F.F.R.); (J.H.); (D.H.); (C.K.); (G.F.); (G.Z.)
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11
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Uyanik T, Gülel GT, Alişarli M. Characterization of extended-spectrum beta-lactamase-producing Enterobacterales from organic and conventional chicken meats. Lett Appl Microbiol 2021; 72:783-790. [PMID: 33735446 DOI: 10.1111/lam.13472] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 03/11/2021] [Accepted: 03/13/2021] [Indexed: 11/30/2022]
Abstract
This study was conducted to isolate and identify extended-spectrum beta-lactamase (ESBL)-producing Enterobacterales in conventional and organic chicken meats, which were sold in Turkey. A total of 200 raw chicken meat sample (100 conventional and 100 organic) were used as material. Classic culture technique based on chromogenic method was used for the isolation of bacteria, and the identification was performed with VITEK MS. Phenotypic ESBL production was detected by combined disc diffusion method. Gene regions responsible for ESBL production were determined by PCR. MIC values of isolates were detected by VITEK 2. Phenotypic ESBL-producing Enterobacterales were detected in 46% of conventional chicken meats and in 22% of organic chicken meats. Of the 115 isolates obtained, 97 (84%) were Escherichia coli, 12 (10%) were Klebsiella pneumoniae, four (3·48%) were Serratia fonticola, one (0·87%) was Rahnella aquatilis, and one (0·87%) was Serratia liquefaciens. PCR analysis revealed that 109 of 115 isolates (94·78%) contained at least one of the blaCTX-M , blaTEM , and blaSHV genes. Of the 115 ESBL-producing isolates, 103 (89·57%) were found resistant to at least one antibiotic except for the β-lactam group. The contamination level of ESBL-producing Enterobacterales was higher in conventional chicken meats (P < 0·001).
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Affiliation(s)
- T Uyanik
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Ondokuz Mayis University, Atakum/Samsun, Turkey
| | - G T Gülel
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Ondokuz Mayis University, Atakum/Samsun, Turkey
| | - M Alişarli
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Ondokuz Mayis University, Atakum/Samsun, Turkey
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12
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Blanco G, López-Hernández I, Morinha F, López-Cerero L. Intensive farming as a source of bacterial resistance to antimicrobial agents in sedentary and migratory vultures: Implications for local and transboundary spread. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 739:140356. [PMID: 32758969 DOI: 10.1016/j.scitotenv.2020.140356] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 06/11/2023]
Abstract
The role of wild birds in the carriage and transmission of human and food animal bacteria with resistant genotypes has repeatedly been highlighted. However, few studies have focussed on the specific exposure sources and places of acquisition and selection for antimicrobial-resistant bacteria in vultures relying on livestock carcasses across large areas and different continents. The occurrence of bacterial resistance to antimicrobial agents was assessed in the faecal microbiota of sedentary Griffon vultures (Gyps fulvus) and trans-Saharan migratory Egyptian vultures (Neophron percnopterus) in central Spain. High rates (generally >50%) of resistant Escherichia coli and other enterobacteria to amoxicillin, cotrimoxazole and tetracycline were found. About 25-30% of samples were colonised by extended-spectrum beta-lactamases (ESBL) producing bacteria, while 5-17% were positive for plasmid mediated quinolone resistance (PMQR) phenotypes, depending on vulture species and age. In total, nine ESBL types were recorded (7 in griffon vultures and 5 in Egyptian vultures), with CTX-M-1 the most prevalent in both species. The most prevalent PMQR was mediated by qnrS genes. We found no clear differences in the occurrence of antimicrobial resistance in adult vultures of each species, or between nestling and adult Egyptian vultures. This supports the hypothesis that antimicrobial resistance is acquired in the European breeding areas of both species. Bacterial resistance can directly be driven by the regular ingestion of multiple active antimicrobials found in medicated livestock carcasses from factory farms, which should be not neglected as a contributor to the emergence of novel resistance clones. The One Health framework should consider the potential transboundary carriage and spread of epidemic resistance from high-income European to low-income African countries via migratory birds.
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Affiliation(s)
- Guillermo Blanco
- Department of Evolutionary Ecology, Museo Nacional de Ciencias Naturales, CSIC, José Gutiérrez Abascal 2, 28006 Madrid, Spain.
| | - Inmaculada López-Hernández
- Unidad de Enfermedades Infecciosas, Microbiología y Medicina Preventiva, Hospital Universitario Virgen Macarena, Departamento de Microbiología, Universidad de Sevilla, Sevilla, Spain
| | - Francisco Morinha
- Department of Evolutionary Ecology, Museo Nacional de Ciencias Naturales, CSIC, José Gutiérrez Abascal 2, 28006 Madrid, Spain
| | - Lorena López-Cerero
- Unidad de Enfermedades Infecciosas, Microbiología y Medicina Preventiva, Hospital Universitario Virgen Macarena, Departamento de Microbiología, Universidad de Sevilla, Sevilla, Spain
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13
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Díaz-Jiménez D, García-Meniño I, Fernández J, García V, Mora A. Chicken and turkey meat: Consumer exposure to multidrug-resistant Enterobacteriaceae including mcr-carriers, uropathogenic E. coli and high-risk lineages such as ST131. Int J Food Microbiol 2020; 331:108750. [PMID: 32559710 DOI: 10.1016/j.ijfoodmicro.2020.108750] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 04/10/2020] [Accepted: 06/06/2020] [Indexed: 12/13/2022]
Abstract
For the first time, this study evaluates consumer exposure via poultry meat to Enterobacteriaceae with capacity to develop severe extraintestinal infections by either bacterial virulence and/or antibiotic resistance traits. The characterization of 256 isolates and the assessment of five parameters, showed that 96 of 100 poultry meat samples from supermarkets of northwest Spain posed ≥ one potential risk: i) 96% carried Enterobacteriaceae resistant to antimicrobials of categories A (64% to monobactams) or B (95% to cephalosporins 3rd and 4rd- generation, quinolones and/or polymixins) of the new categorization of EMA. ii) More than one extended-spectrum-β-lactamase (ESBL)-producing Enterobacteriaceae species were recovered from 28% of poultry meat. iii) High-risk lineages of E. coli, including multidrug-resistant ST131-H22, were present in 62% of samples. iv) E. coli recovered from 25% of samples conformed the ExPEC status. v) E. coli from 17% of samples satisfied the UPEC status. Of note, the recovery from different samples of two E. coli CC10-A (CH11-54) carrying mcr-1.1-bearing IncX4 plasmids, and four E. coli CC10-A (eae-beta1) of the hybrid pathotype aEPEC/ExPEC. (ESBL)-producing K. pneumoniae were isolated from 27% of samples. In summary, poultry meat microbiota is a source of genetically diverse Enterobacteriaceae, resistant to relevant antimicrobials and potentially pathogenic for consumers.
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Affiliation(s)
- Dafne Díaz-Jiménez
- Laboratorio de Referencia de Escherichia coli (LREC), Departamento de Microbiología y Parasitología, Facultad de Veterinaria, Universidad de Santiago de Compostela (USC), Lugo, Spain.; Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago, Spain
| | - Isidro García-Meniño
- Laboratorio de Referencia de Escherichia coli (LREC), Departamento de Microbiología y Parasitología, Facultad de Veterinaria, Universidad de Santiago de Compostela (USC), Lugo, Spain.; Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago, Spain
| | - Javier Fernández
- Servicio de Microbiología, Hospital Universitario Central de Asturias (HUCA). Instituto de Investigación del Principado de Asturias (ISPA), Oviedo, Spain
| | - Vanesa García
- Laboratorio de Referencia de Escherichia coli (LREC), Departamento de Microbiología y Parasitología, Facultad de Veterinaria, Universidad de Santiago de Compostela (USC), Lugo, Spain.; Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago, Spain.; Department of Veterinary and Animal Sciences, Section of Veterinary Clinical Microbiology, University of Copenhagen, København, Denmark
| | - Azucena Mora
- Laboratorio de Referencia de Escherichia coli (LREC), Departamento de Microbiología y Parasitología, Facultad de Veterinaria, Universidad de Santiago de Compostela (USC), Lugo, Spain.; Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago, Spain..
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14
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Methner U, Rösler U. Efficacy of a competitive exclusion culture against extended-spectrum β-lactamase-producing Escherichia coli strains in broilers using a seeder bird model. BMC Vet Res 2020; 16:143. [PMID: 32429925 PMCID: PMC7236488 DOI: 10.1186/s12917-020-02370-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 05/10/2020] [Indexed: 01/31/2023] Open
Abstract
Background Administration of a competitive exclusion culture (CE culture) has the potential to induce protective effects in very young chicks against caecal colonisation by EEC (= extended-spectrum β-lactamases [ESBL] and AmpC-type [AmpC] beta-lactamases producing Escherichia coli). The study aimed to verify the protective capacity of a CE culture in broilers using the seeder bird model against EEC exposure of the chicks. Results Introduction of infected seeder birds resulted in rapid and strong caecal colonisation of four different EEC challenge strains tested in untreated contact broilers. Compared to controls the broilers pre-treated with the CE culture showed a considerable decrease in caecal load of different EEC challenge strains from about 3.0–3.5 log10 units (P < 0.05) on day 9 of life to 2.5–3.0 log10 units (P < 0.05) on day 37. A slightly higher protective level of the CE culture in layer birds than in broilers raises the question on reasons for possible differences in the efficacy of CE culture in broiler and layer breeds. Whether the diet’s protein content has an impact on both normal intestinal flora composition and the efficacy of CE cultures against EEC or other pathogens remains open and needs further elucidation. Conclusions Our findings suggest that CE cultures of undefined composition can be valuable to reduce the intestinal colonisation by EEC in newly hatched broilers.
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Affiliation(s)
- Ulrich Methner
- Institute of Bacterial Infections and Zoonoses at the Friedrich-Loeffler-Institute, Federal Research Institute for Animal Health, Naumburger Str. 96a, D-07743, Jena, Germany.
| | - Uwe Rösler
- Department of Veterinary Medicine, Institute of Animal Hygiene and Environmental Health, Free University Berlin, Robert-von Ostertag-Str. 7-13, D-14163, Berlin, Germany
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15
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Baniga Z, Hounmanou YMG, Kudirkiene E, Kusiluka LJM, Mdegela RH, Dalsgaard A. Genome-Based Analysis of Extended-Spectrum β-Lactamase-Producing Escherichia coli in the Aquatic Environment and Nile Perch ( Lates niloticus) of Lake Victoria, Tanzania. Front Microbiol 2020; 11:108. [PMID: 32153519 PMCID: PMC7046833 DOI: 10.3389/fmicb.2020.00108] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 01/17/2020] [Indexed: 12/11/2022] Open
Abstract
Extended-spectrum β-lactamase (ESBL)-producing bacteria constitute an emerging global health issue with food products being vehicles of transmission and the aquatic environments serving as potential reservoirs. This study aimed to characterize ESBL-producing Escherichia coli in Nile perch and water from Lake Victoria in Tanzania. A total of 180 samples of Nile perch and 60 water samples were screened for ESBL-producing E. coli on MacConkey agar supplemented with 2 μg/ml of cefotaxime and confirmed by blaCTX–M and blaTEM PCR. Antimicrobial resistance was determined by the disk diffusion method, and the ESBL-producing isolates were whole genome sequencing (WGS). ESBL-producing E. coli were detected in eight of the 180 analyzed Nile perch samples, and only one water sample was positive (1.7%, n = 60). Isolates were resistant to sulfamethoxazole–trimethoprim (100%), ampicillin/cloxacillin (100%), erythromycin 72.7% (8/11), tetracycline 90.9% (10/11), and nalidixic acid 63.6% (7/11). This mostly corroborates the resistance genes that they carried for sulfonamides (sul1 and sul2), trimethoprim (dfrA and dfrB), aminoglycosides [aac(3)-IId, strA, and strB], tetracycline [tet(B) and tet(D)], and fluoroquinolones (qepA4). They harbored plasmid replicon types IncF, IncX, IncQ, and Col and carried blaCTX–M–15 and blaTEM–1B genes generally found on the same contigs as the IncF plasmid replicon. Although epidemiologically unrelated, the strains formed three separate sequence type–phylogroup–serotype-specific clusters: C1, C2, and C3. Cluster C1 included five strains (3 to 13 SNPs) belonging to ST167, phylogroup A, and serotype O9:H21; the two C2 strains (11 SNPs) belong to ST156, phylogroup B1, and serotype ONT:H28; and C3 was made up of four strains (SNPs ranged from 4 to 17) of ST636, phylogroup B2, and serotype O45:H7. The common virulence gene gad was reported in all strains. In addition, strains in C2 and C3 possessed iss, lpfA, and nfaE virulence genes, and the vat gene was found only in C3. The present study reports the occurrence of multidrug-resistant ESBL-producing E. coli carrying plasmid-mediated ESBL genes in offshore water and Nile perch in Lake Victoria. Strains formed three clonal clusters of unknown origin. This study reveals that the Lake may serve as reservoir for ESBL-producing bacteria that can be transmitted by fish as a food chain hazard of One-Health concern.
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Affiliation(s)
- Zebedayo Baniga
- Department of Veterinary Medicine and Public Health, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania.,Department of Fisheries Development, National Fish Quality Control Laboratory-Nyegezi, Mwanza, Tanzania
| | - Yaovi M Gildas Hounmanou
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Egle Kudirkiene
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lughano J M Kusiluka
- Department of Veterinary Medicine and Public Health, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania.,Mzumbe University, Mzumbe, Tanzania
| | - Robinson H Mdegela
- Department of Veterinary Medicine and Public Health, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Anders Dalsgaard
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
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16
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Alegría Á, Arias-Temprano M, Fernández-Natal I, Rodríguez-Calleja JM, García-López ML, Santos JA. Molecular Diversity of ESBL-Producing Escherichia coli from Foods of Animal Origin and Human Patients. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E1312. [PMID: 32085569 PMCID: PMC7068493 DOI: 10.3390/ijerph17041312] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/21/2020] [Accepted: 02/15/2020] [Indexed: 02/06/2023]
Abstract
Dissemination of enterobacteria that produce extended spectrum β-lactamases (ESBL) throughout the food chain has become an important health concern. This work aimed to evaluate the occurrence of ESBL-producing bacteria in foods of animal origin and to investigate the similarities between food and human isolates. The presence of beta-lactam-resistant Enterobacteriaceae was analyzed in 108 food samples, isolating 10 strains of Escherichia coli, one strain of Citrobacter freundi, and one of Hafnia alvei. E. coli isolates were compared to a group of 15 strains isolated from human patients by antibiotic susceptibility testing, characterization of ESBL genes (blaTEM, blaCTX,), multilocus sequence typing (MLST) and pulse-field gel electrophoresis (PFGE). Nineteen (14 clinical and five food) isolates carried blaCTX, 14 (six clinical and eight food) carried blaTEM, and three (one clinical and two food) carried blaSHV gen. MLST analysis revealed the prevalence of ST131 among the clinical strains, which grouped together in a PFGE cluster. Food isolates showed higher diversity and two of them (ST57) grouped with clinical strains, whereas another two belonged to clonal groups with virulence potential (ST59). In conclusion, the results showed that foods of animal origin must be regarded as a reservoir of ESBL-producing bacteria of clinical relevance, which might spread through the food chain.
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Affiliation(s)
- Ángel Alegría
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, ES24071 León, Spain; (Á.A.); (J.M.R.-C.); (M.-L.G.-L.)
| | - Marta Arias-Temprano
- Department of Clinical Microbiology, Complejo Asistencial Universitario de León (CAULE), ES24071 León, Spain; (M.A.-T.); (I.F.-N.)
| | - Isabel Fernández-Natal
- Department of Clinical Microbiology, Complejo Asistencial Universitario de León (CAULE), ES24071 León, Spain; (M.A.-T.); (I.F.-N.)
| | - Jose M. Rodríguez-Calleja
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, ES24071 León, Spain; (Á.A.); (J.M.R.-C.); (M.-L.G.-L.)
| | - María-Luisa García-López
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, ES24071 León, Spain; (Á.A.); (J.M.R.-C.); (M.-L.G.-L.)
| | - Jesús A. Santos
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, ES24071 León, Spain; (Á.A.); (J.M.R.-C.); (M.-L.G.-L.)
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17
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Mo SS, Urdahl AM, Nesse LL, Slettemeås JS, Ramstad SN, Torp M, Norström M. Occurrence of and risk factors for extended-spectrum cephalosporin-resistant Enterobacteriaceae determined by sampling of all Norwegian broiler flocks during a six month period. PLoS One 2019; 14:e0223074. [PMID: 31557254 PMCID: PMC6762140 DOI: 10.1371/journal.pone.0223074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 09/12/2019] [Indexed: 12/17/2022] Open
Abstract
All broiler flocks reared and slaughtered in Norway from May-October 2016 (n = 2110) were screened for the presence of extended-spectrum cephalosporin (ESC) -resistant Enterobacteriaceae. Furthermore, we investigated possible risk factors for occurrence of such bacteria in broiler flocks. The odds of a flock being positive for ESC-resistant Enterobacteriaceae increased if the previous flock in the same house was positive, and if the flock was reared during September-October. However, we cannot exclude seasonal fluctuations in occurrence of ESC-resistant Enterobacteriaceae during the months November to April. The overall occurrence of ESC-resistant Enterobacteriaceae was 10.4%, and primarily linked to the presence of blaCMY (82.6%) in positive isolates. We describe the first findings of Escherichia coli with blaCTX-M-1, Klebsiella pneumoniae with both blaCTX-M-15 and blaSHV-12, and K. pneumoniae with blaCMY isolated from Norwegian broiler production. This study gives us a unique overview and estimate of the true occurrence of ESC-resistant Enterobacteriaceae in Norwegian broilers over a six-month period. To the best of our knowledge, this is the most comprehensive study performed on the occurrence of ESC-resistant Enterobacteriaceae in a broiler population.
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Affiliation(s)
- Solveig Sølverød Mo
- Department of Animal Health, Welfare and Food Safety, Norwegian Veterinary Institute, Oslo, Norway
- * E-mail:
| | - Anne Margrete Urdahl
- Department of Animal Health, Welfare and Food Safety, Norwegian Veterinary Institute, Oslo, Norway
| | - Live Lingaas Nesse
- Department of Animal Health, Welfare and Food Safety, Norwegian Veterinary Institute, Oslo, Norway
| | - Jannice Schau Slettemeås
- Department of Animal Health, Welfare and Food Safety, Norwegian Veterinary Institute, Oslo, Norway
| | - Silje Nøstvedt Ramstad
- Department of Animal Health, Welfare and Food Safety, Norwegian Veterinary Institute, Oslo, Norway
| | - Mona Torp
- Department of Animal Health, Welfare and Food Safety, Norwegian Veterinary Institute, Oslo, Norway
| | - Madelaine Norström
- Department of Analysis and Diagnostics, Norwegian Veterinary Institute, Oslo, Norway
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Hojabri Z, Darabi N, Arab M, Saffari F, Pajand O. Clonal diversity, virulence genes content and subclone status of Escherichia coli sequence type 131: comparative analysis of E. coli ST131 and non-ST131 isolates from Iran. BMC Microbiol 2019; 19:117. [PMID: 31146674 PMCID: PMC6543562 DOI: 10.1186/s12866-019-1493-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 05/14/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The Escherichia coli sequence type 131 (ST131) is a well established clone causing significant extraintestinal infections worldwide. However, no studies have been reported the phenotypic and molecular traits of ST131 isolates in comparison to other clones of E. coli from Iran. So, we determined the differences between 69 ST131 strains collected during a one year surveillance study and 84 non-ST131 isolates, including 56 clinical fluoroquinolone resistant and 28 broiler colibacillosis isolates in terms of clonality and genetic background. RESULTS ST131 isolates were associated with phylogroup B2 (68 out of 69 isolates, 98.4%), while clinical non-ST131 and fluoroquinolone resistant broiler isolates mainly belonged to phylogroup A. The highest virulence score was observed in ST131 clone, while they showed less diversity in virulence profiles than other clinical isolates. Almost all of the ST131 isolates (95.6%) were ExPEC and had the highest virulence scores, but their resistance scores were less than clinical non-ST131 isolates. Broiler isolates showed higher prevalence of ExPEC-associated virulence genes and CTX-M-G1/G9 resistance determinants as compared to clinical non-ST131 isolates. While blaOXA-48/NDM carbapenemases were mostly found in ST131 clone, resistance rate against ertapenem was higher among clinical non-ST131 strains. According to ERIC-based fingerprinting, the ST131 strains were more genetically similar, followed by non-ST131 and broiler isolates. CONCLUSIONS ST131 isolates possess the ability to make a balance between clonality and extent of resistance/virulence genes content, so this phenomenon gives a fitness advantage over other E. coli clones. The broilers E. coli population poses a potential zoonotic risk which could be transmitted to the community through the food chain. A number of factors are involved in the dissemination of and infections due to ST131 clone.
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Affiliation(s)
- Zoya Hojabri
- Microbiology Department, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.,Student Research Committee, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Narges Darabi
- Microbiology Department, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Maedeh Arab
- Student Research Committee, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Fereshteh Saffari
- Microbiology Department, Faculty of medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Omid Pajand
- Microbiology Department, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran. .,Social Determinants of Health Research Center, Semnan University of Medical Sciences, Semnan, Iran.
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19
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Velasova M, Smith RP, Lemma F, Horton RA, Duggett NA, Evans J, Tongue SC, Anjum MF, Randall LP. Detection of extended-spectrum β-lactam, AmpC and carbapenem resistance in Enterobacteriaceae in beef cattle in Great Britain in 2015. J Appl Microbiol 2019; 126:1081-1095. [PMID: 30693606 DOI: 10.1111/jam.14211] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 01/02/2019] [Accepted: 01/21/2019] [Indexed: 02/06/2023]
Abstract
AIMS This study investigated the occurrence and genetic diversity of Enterobacteriaceae with extended-spectrum β-lactamase (ESBL)-, AmpC- and carbapenemase-mediated resistance in British beef cattle, and related risk factors. METHODS AND RESULTS Faecal samples (n = 776) were obtained from farms in England and Wales (n = 20) and Scotland (n = 20) in 2015. Isolates from selective agars were identified by MALDI ToF mass spectrometry. Selected isolates were characterized by multiplex PCR (blaCTX -M, blaOXA , blaSHV and blaTEM genes), whole-genome sequencing (WGS), minimum inhibitory concentrations and pulsed-field gel electrophoresis. None of the faecal samples yielded carbapenem-resistant Escherichia coli. Ten (25%) of the farms tested positive for ESBL-producing CTX-M Enterobacteriaceae, 15 (37·5%) of the farms were positive for AmpC phenotype E. coli and none were positive for carbapenem-resistant E. coli. WGS showed a total of 30 different resistance genes associated with E. coli, Citrobacter and Serratia from ESBL agars, and colocation of resistance genes with blaCTX -M1 . Buying bulls and bringing in fattening cattle from another farm were identified as significant risk factors for positive samples harbouring CTX-M Enterobacteriaceae or AmpC phenotype E. coli respectively. CONCLUSIONS Beef cattle on a proportion of farms in GB carry ESBL-producing Enterobacteriaceae. Factors, such as operating as a closed herd, may have an important role in reducing introduction and transmission of resistant Enterobacteriaceae. The results indicate management factors may play an important role in impacting ESBL prevalence. In particular, further study would be valuable to understand the impact of maintaining a closed herd on reducing the introduction of resistant Enterobacteriaceae. SIGNIFICANCE AND IMPACT OF THE STUDY This is the first study showing the presence of ESBL-producing Enterobacteriaceae in British beef cattle.
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Affiliation(s)
- M Velasova
- Animal and Plant Health Agency (Weybridge), Addlestone, UK
| | - R P Smith
- Animal and Plant Health Agency (Weybridge), Addlestone, UK
| | - F Lemma
- Animal and Plant Health Agency (Weybridge), Addlestone, UK
| | - R A Horton
- Animal and Plant Health Agency (Weybridge), Addlestone, UK
| | - N A Duggett
- Animal and Plant Health Agency (Weybridge), Addlestone, UK
| | - J Evans
- SRUC (Inverness Campus), Edinburgh, UK
| | | | - M F Anjum
- Animal and Plant Health Agency (Weybridge), Addlestone, UK
| | - L P Randall
- Animal and Plant Health Agency (Weybridge), Addlestone, UK
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Contamination of chicken meat with extended-spectrum beta-lactamase producing- Klebsiella pneumoniae and Escherichia coli during scalding and defeathering of broiler carcasses. Food Microbiol 2019; 77:185-191. [DOI: 10.1016/j.fm.2018.09.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 08/28/2018] [Accepted: 09/11/2018] [Indexed: 01/04/2023]
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Wang J, Ma ZB, Zeng ZL, Yang XW, Huang Y, Liu JH. The role of wildlife (wild birds) in the global transmission of antimicrobial resistance genes. Zool Res 2019; 38:55-80. [PMID: 28409502 PMCID: PMC5396029 DOI: 10.24272/j.issn.2095-8137.2017.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Antimicrobial resistance is an urgent global health challenge in human and veterinary medicine. Wild animals are not directly exposed to clinically relevant antibiotics; however, antibacterial resistance in wild animals has been increasingly reported worldwide in parallel to the situation in human and veterinary medicine. This underlies the complexity of bacterial resistance in wild animals and the possible interspecies transmission between humans, domestic animals, the environment, and wildlife. This review summarizes the current data on expanded-spectrum β-lactamase (ESBL), AmpC β-lactamase, carbapenemase, and colistin resistance genes in Enterobacteriaceae isolates of wildlife origin. The aim of this review is to better understand the important role of wild animals as reservoirs and vectors in the global dissemination of crucial clinical antibacterial resistance. In this regard, continued surveillance is urgently needed worldwide.
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Affiliation(s)
- Jing Wang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Zhen-Bao Ma
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Zhen-Ling Zeng
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Xue-Wen Yang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Ying Huang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Jian-Hua Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
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22
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Kürekci C, Osek J, Aydın M, Tekeli İO, Kurpas M, Wieczorek K, Sakin F. Evaluation of bulk tank raw milk and raw chicken meat samples as source of ESBL producingEscherichia coliin Turkey: Recent insights. J Food Saf 2018. [DOI: 10.1111/jfs.12605] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Cemil Kürekci
- Department of Food Hygiene and Technology, Faculty of Veterinary MedicineHatay Mustafa Kemal University Antakya Hatay Turkey
| | - Jacek Osek
- Department of Hygiene of Food of Animal OriginNational Veterinary Research Institute Pulawy Poland
| | - Muhsin Aydın
- Department of Biology, Faculty of Science and LettersAdıyaman University Adıyaman Turkey
| | - İbrahim Ozan Tekeli
- Department of Pharmacology and Toxicology, Faculty of Veterinary MedicineHatay Mustafa Kemal University Antakya Hatay Turkey
| | - Monika Kurpas
- Department of Hygiene of Food of Animal OriginNational Veterinary Research Institute Pulawy Poland
| | - Kinga Wieczorek
- Department of Hygiene of Food of Animal OriginNational Veterinary Research Institute Pulawy Poland
| | - Fatih Sakin
- Department of Pharmacology and Toxicology, Faculty of Veterinary MedicineHatay Mustafa Kemal University Antakya Hatay Turkey
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Hayashi W, Ohsaki Y, Taniguchi Y, Koide S, Kawamura K, Suzuki M, Kimura K, Wachino JI, Nagano Y, Arakawa Y, Nagano N. High prevalence of blaCTX-M-14 among genetically diverse Escherichia coli recovered from retail raw chicken meat portions in Japan. Int J Food Microbiol 2018; 284:98-104. [DOI: 10.1016/j.ijfoodmicro.2018.08.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 07/31/2018] [Accepted: 08/03/2018] [Indexed: 01/27/2023]
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Projahn M, Pacholewicz E, Becker E, Correia-Carreira G, Bandick N, Kaesbohrer A. Reviewing Interventions against Enterobacteriaceae in Broiler Processing: Using Old Techniques for Meeting the New Challenges of ESBL E. coli? BIOMED RESEARCH INTERNATIONAL 2018; 2018:7309346. [PMID: 30426012 PMCID: PMC6218796 DOI: 10.1155/2018/7309346] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/17/2018] [Accepted: 09/25/2018] [Indexed: 02/07/2023]
Abstract
Extended-spectrum beta-lactamase- (ESBL-) producing Enterobacteriaceae are frequently detected in poultry and fresh chicken meat. Due to the high prevalence, an impact on human colonization and the spread of antibiotic resistance into the environment is assumed. ESBL-producing Enterobacteriaceae can be transmitted along the broiler production chain but also their persistence is reported because of insufficient cleaning and disinfection. Processing of broiler chickens leads to a reduction of microbiological counts on the carcasses. However, processing steps like scalding, defeathering, and evisceration are critical concerning fecal contamination and, therefore, cross-contamination with bacterial strains. Respective intervention measures along the slaughter processing line aim at reducing the microbiological load on broiler carcasses as well as preventing cross-contamination. Published data on the impact of possible intervention measures against ESBL-producing Enterobacteriaceae are missing and, therefore, we focused on processing measures concerning Enterobacteriaceae, in particular E. coli or coliform counts, during processing of broiler chickens to identify possible hints for effective strategies to reduce these resistant bacteria. In total, 73 publications were analyzed and data on the quantitative reductions were extracted. Most investigations concentrated on scalding, postdefeathering washes, and improvements in the chilling process and were already published in and before 2008 (n=42, 58%). Therefore, certain measures may be already installed in slaughterhouse facilities today. The effect on eliminating ESBL-producing Enterobacteriaceae is questionable as there are still positive chicken meat samples found. A huge number of studies dealt with different applications of chlorine substances which are not approved in the European Union and the reduction level did not exceed 3 log10 values. None of the measures was able to totally eradicate Enterobacteriaceae from the broiler carcasses indicating the need to develop intervention measures to prevent contamination with ESBL-producing Enterobacteriaceae and, therefore, the exposure of humans and the further release of antibiotic resistances into the environment.
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Affiliation(s)
- Michaela Projahn
- German Federal Institute for Risk Assessment, Diedersdorfer Weg 1, 12277 Berlin, Germany
| | - Ewa Pacholewicz
- German Federal Institute for Risk Assessment, Diedersdorfer Weg 1, 12277 Berlin, Germany
| | - Evelyne Becker
- German Federal Institute for Risk Assessment, Diedersdorfer Weg 1, 12277 Berlin, Germany
| | - Guido Correia-Carreira
- German Federal Institute for Risk Assessment, Diedersdorfer Weg 1, 12277 Berlin, Germany
| | - Niels Bandick
- German Federal Institute for Risk Assessment, Diedersdorfer Weg 1, 12277 Berlin, Germany
| | - Annemarie Kaesbohrer
- German Federal Institute for Risk Assessment, Diedersdorfer Weg 1, 12277 Berlin, Germany
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Dandachi I, Chabou S, Daoud Z, Rolain JM. Prevalence and Emergence of Extended-Spectrum Cephalosporin-, Carbapenem- and Colistin-Resistant Gram Negative Bacteria of Animal Origin in the Mediterranean Basin. Front Microbiol 2018; 9:2299. [PMID: 30323797 PMCID: PMC6172473 DOI: 10.3389/fmicb.2018.02299] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 09/10/2018] [Indexed: 11/13/2022] Open
Abstract
In recent years, extended ESBL and carbapenemase producing Gram negative bacteria have become widespread in hospitals, community settings and the environment. This has been triggered by the few therapeutic options left when infections with these multi-drug resistant organisms occur. The emergence of resistance to colistin, the last therapeutic option against carbapenem-resistant bacteria, worsened the situation. Recently, animals were regarded as potent antimicrobial reservoir and a possible source of infection to humans. Enteric Gram negative bacteria in animals can be easily transmitted to humans by direct contact or indirectly through the handling and consumption of undercooked/uncooked animal products. In the Mediterranean basin, little is known about the current overall epidemiology of multi-drug resistant bacteria in livestock, companion, and domestic animals. This review describes the current epidemiology of ESBL, carbapenemase producers and colistin resistant bacteria of animal origin in this region of the world. The CTX-M group 1 seems to prevail in animals in this area, followed by SHV-12 and CTX-M group 9. The dissemination of carbapenemase producers and colistin resistance remains low. Isolated multi-drug resistant bacteria were often co-resistant to non-beta-lactam antibiotics, frequently used in veterinary medicine as treatment, growth promoters, prophylaxis and in human medicine for therapeutic purposes. Antibiotics used in veterinary medicine in this area include mainly tetracycline, aminoglycosides, fluoroquinolones, and polymyxins. Indeed, it appears that the emergence of ESBL and carbapenemase producers in animals is not related to the use of beta-lactam antibiotics but is, rather, due to the co-selective pressure applied by the over usage of non-beta-lactams. The level of antibiotic consumption in animals should be, therefore, re-considered in the Mediterranean area especially in North Africa and western Asia where no accurate data are available about the level of antibiotic consumption in animals.
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Affiliation(s)
- Iman Dandachi
- IRD, APHM, MEPHI, IHU-Méditerranée Infection, Aix Marseille Université, Marseille, France
- Clinical Microbiology Laboratory, Faculty of Medicine and Medical Sciences, University of Balamand, Beirut, Lebanon
| | - Selma Chabou
- IRD, APHM, MEPHI, IHU-Méditerranée Infection, Aix Marseille Université, Marseille, France
| | - Ziad Daoud
- Clinical Microbiology Laboratory, Faculty of Medicine and Medical Sciences, University of Balamand, Beirut, Lebanon
| | - Jean-Marc Rolain
- IRD, APHM, MEPHI, IHU-Méditerranée Infection, Aix Marseille Université, Marseille, France
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Ahmad K, Khattak F, Ali A, Rahat S, Noor S, Mahsood N, Somayya R. Carbapenemases and Extended-Spectrum β-Lactamase-Producing Multidrug-Resistant Escherichia coli Isolated from Retail Chicken in Peshawar: First Report from Pakistan. J Food Prot 2018; 81:1339-1345. [PMID: 30019956 DOI: 10.4315/0362-028x.jfp-18-045] [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: 01/09/2023]
Abstract
We report the prevalence of extended-spectrum β-lactamases and carbapenemases in Escherichia coli isolated from retail chicken in Peshawar, Pakistan. One hundred E. coli isolates were recovered from retail chicken. Antibiotic susceptibility testing was carried out against ampicillin, chloramphenicol, kanamycin, nalidixic acid, cephalothin, gentamicin, sulfamethoxazole-trimethoprim, and streptomycin. Phenotypic detection of β-lactamase production was analyzed through double disc synergy test using the antibiotics amoxicillin-clavulanate, cefotaxime, ceftazidime, cefepime, and aztreonam. Fifty multidrug-resistant isolates were screened for detection of sul1, aadA, cmlA, int, blaTEM, blaSHV, blaCTX-M, blaOXA-10, blaVIM, blaIMP, and blaNDM-1 genes. Resistance to ampicillin, nalidixic acid, kanamycin, streptomycin, cephalothin, sulfamethoxazole-trimethoprim, gentamicin, cefotaxime, ceftazidime, aztreonam, cefepime, amoxicillin-clavulanate, and chloramphenicol was 92, 91, 84, 73, 70, 67, 53, 48, 40, 39, 37, 36, and 23% respectively. Prevalence of sul1, aadA, cmlA, int, blaTEM, blaCTX-M, blaIMP, and blaNDM-1 was 78% ( n = 39), 76% ( n = 38), 20% ( n = 10), 90% ( n = 45), 74% ( n = 37), 94% ( n = 47), 22% ( n = 11), and 4% ( n = 2), respectively. blaSHV, blaOXA-10, and blaVIM were not detected. The coexistence of multiple antibiotic resistance genes in multidrug-resistant strains of E. coli is alarming. Hence, robust surveillance strategies should be developed with a focus on controlling the spread of antibiotic resistance genes via the food chain.
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Affiliation(s)
| | - Faryal Khattak
- Center of Biotechnology and Microbiology, University of Peshawar, Peshawar, Khyber Pakhtunkhwa 25120, Pakistan (ORCID: http://orcid.org/0000-0002-0532-0631 [K.A.])
| | - Amjad Ali
- Center of Biotechnology and Microbiology, University of Peshawar, Peshawar, Khyber Pakhtunkhwa 25120, Pakistan (ORCID: http://orcid.org/0000-0002-0532-0631 [K.A.])
| | - Shaista Rahat
- Center of Biotechnology and Microbiology, University of Peshawar, Peshawar, Khyber Pakhtunkhwa 25120, Pakistan (ORCID: http://orcid.org/0000-0002-0532-0631 [K.A.])
| | - Shazia Noor
- Center of Biotechnology and Microbiology, University of Peshawar, Peshawar, Khyber Pakhtunkhwa 25120, Pakistan (ORCID: http://orcid.org/0000-0002-0532-0631 [K.A.])
| | - Nargas Mahsood
- Center of Biotechnology and Microbiology, University of Peshawar, Peshawar, Khyber Pakhtunkhwa 25120, Pakistan (ORCID: http://orcid.org/0000-0002-0532-0631 [K.A.])
| | - Ramla Somayya
- Center of Biotechnology and Microbiology, University of Peshawar, Peshawar, Khyber Pakhtunkhwa 25120, Pakistan (ORCID: http://orcid.org/0000-0002-0532-0631 [K.A.])
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Occurrence of bacteria with a dangerous extent of antibiotic resistance in poultry in the Central Region of Moravia. ACTA VET BRNO 2018. [DOI: 10.2754/avb201887020165] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The study aimed to determine the occurrence ofEnterobacteriaceaeproducing broad-spectrum beta-lactamases, vancomycin-resistant enterococci (VRE) and methicillin-resistantStaphylococcus aureusstrains in poultry in Moravia, Czech Republic, including phenotypic and genotypic analyses of the extent of resistance. Using chromogenic screening media, a total of 240 clinical samples collected from poultry and the poultry farm environment were processed. Phenotypic tests identified 23 isolates of broad-spectrum beta-lactamase-producingEscherichia coliand one VRE isolate (Enterococcus faeciumwith VanA resistance). Methicillin-resistantStaphylococcus aureusstrains were not detected. Among the isolates producing broad-spectrum beta-lactamases, 17 produced extended-spectrum beta-lactamases, most frequently CTX-M; the remaining 6 isolates were CIT-type AmpC enzymes. No carbapenemase-producing strains were detected. Pulsed-field gel electrophoresis showed that 21E. colistrains (91%) were genetically unrelated isolates. Increasing resistance of bacteria to antibiotic agents poses a serious issue for both human and veterinary medicine globally. For humans, a potential source of resistant bacteria may be animals or their products entering the human food chain, for example poultry. The presented study extends existing knowledge about the occurrence of resistant bacteria in poultry in Moravia and describes the phenotype and genotype of their resistance to antibiotics.
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Extended-spectrum beta-lactamase-producing Escherichia coli and Klebsiella pneumoniae in local and imported poultry meat in Ghana. Vet Microbiol 2018; 217:7-12. [PMID: 29615260 DOI: 10.1016/j.vetmic.2018.02.023] [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: 10/27/2017] [Revised: 01/15/2018] [Accepted: 02/17/2018] [Indexed: 11/20/2022]
Abstract
Antibiotic use in animal husbandry has raised concerns on the spread of resistant bacteria. Currently animal products are traded globally with unprecedented ease, which has been challenging the control of antimicrobial resistance. This study aims to detect and characterize extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae from imported and locally produced poultry products sold in Ghana. Local and imported chicken meat was collected from 94 stores and markets throughout Kumasi (Ghana) and cultured on selective ESBL screening agar. Phenotypic ESBL-producing E. coli and K. pneumoniae isolates were confirmed by combined disc test and further characterized by antibiotic susceptibility testing, amplification of the blaCTX-M, blaTEM and blaSHV genes as well as multilocus sequence typing (MLST) and linked to the country of origin. Out of 200 meat samples, 71 (36%) samples revealed 81 ESBL-producing isolates (46 E. coli and 35 K. pneumoniae), with 44% (30/68) of local poultry and 31% (41/132) of imported products being contaminated. Most ESBL-producing isolates harboured the blaCTX-M-15 gene (61/81, 75%) and the dominant Sequence Types (ST) were ST2570 (7/35, 20%) among K. pneumoniae and ST10 (5/46, 11%) among E. coli. High numbers of ESBL-producing bacteria, particularly on local but also imported poultry meat, represent a potential source for human colonization and infection as well as spread within the community. Surveillance along the poultry production-food-consumer chain would be a valuable tool to identify sources of emerging multidrug resistant pathogens in Ghana.
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Occurrence of extended spectrum β-lactamase and AmpC genes among multidrug-resistant Escherichia coli and emergence of ST131 from poultry meat in Thailand. Food Control 2018. [DOI: 10.1016/j.foodcont.2017.07.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Alonso CA, Michael GB, Li J, Somalo S, Simón C, Wang Y, Kaspar H, Kadlec K, Torres C, Schwarz S. Analysis of blaSHV-12-carrying Escherichia coli clones and plasmids from human, animal and food sources. J Antimicrob Chemother 2017; 72:1589-1596. [PMID: 28333184 DOI: 10.1093/jac/dkx024] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 01/15/2017] [Indexed: 11/14/2022] Open
Abstract
Objectives This study aimed at characterizing 23 Escherichia coli isolates from various sources and their respective bla SHV-12 -carrying plasmids and sequencing one of these plasmids completely. Methods Isolates were typed by XbaI-PFGE, MLST and PCR-based phylotyping. Transformed bla SHV-12 -carrying plasmids were examined by replicon typing, S1-nuclease, conjugation, EcoRI-HindIII-BamHI digests and plasmid MLST. Co-located resistance genes and integrons as well as the bla SHV-12 genetic environment were analysed by PCR and sequencing. One IncI1 plasmid was sequenced completely using HiSeq 2500 and gap closure by PCRs and Sanger sequencing. Results Among the 23 SHV-12-positive E. coli , some isolates from different sources showed the same characteristics: ST23/phylogroup A (human, dog, livestock), ST57/D (wild bird, chicken meat) and ST117/D (chicken meat, chicken). All bla SHV-12 genes were horizontally transferable via 30-120 kb plasmids of incompatibility groups IncI1 ( n = 17), IncK ( n = 3), IncF ( n = 1), IncX3 ( n = 1) and a non-typeable plasmid. IncK plasmids, indistinguishable in size and restriction patterns, were found in isolates from different sources (ST57/D, meat; ST131/B2, meat; ST57/B1, dog). The IncI1- bla SHV-12 -carrying plasmids were mostly assigned to plasmid ST (pST) 26 and pST3. Three plasmids showed novel pSTs (pST214, pST215). The majority of the IncI1 transformants exhibited resistance to β-lactams, chloramphenicol and streptomycin (in relation with a class 1 integron containing an estX - psp - aadA2 - cmlA1 - aadA1 - qacI gene cassette array), and to tetracycline. A novel bla SHV-12 environment was detected and whole plasmid sequencing revealed a Tn 21 -derived- bla SHV12 -ΔTn 1721 resistance complex. Conclusions Results from this study suggest that the dissemination of bla SHV-12 genes occurs by vertical (clonal) and horizontal transfer, the latter mainly mediated through IncI1 multidrug-resistance plasmids.
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Affiliation(s)
- Carla Andrea Alonso
- Department of Biochemistry and Molecular Biology, University of La Rioja, Logroño, Spain
| | - Geovana Brenner Michael
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut (FLI), Neustadt-Mariensee, Germany.,Department of Veterinary Medicine, Institute of Microbiology and Epizootics, Centre of Infection Medicine, Freie Universität Berlin, Berlin, Germany
| | - Jun Li
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut (FLI), Neustadt-Mariensee, Germany.,College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Sergio Somalo
- Department of Biochemistry and Molecular Biology, University of La Rioja, Logroño, Spain
| | - Carmen Simón
- Faculty of Veterinary Science, University of Zaragoza, Zaragoza, Spain
| | - Yang Wang
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Heike Kaspar
- Federal Office of Consumer Protection and Food Safety (BVL), Berlin, Germany
| | - Kristina Kadlec
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut (FLI), Neustadt-Mariensee, Germany
| | - Carmen Torres
- Department of Biochemistry and Molecular Biology, University of La Rioja, Logroño, Spain
| | - Stefan Schwarz
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut (FLI), Neustadt-Mariensee, Germany.,Department of Veterinary Medicine, Institute of Microbiology and Epizootics, Centre of Infection Medicine, Freie Universität Berlin, Berlin, Germany
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Potential transmission opportunity of CTX-M-producing Escherichia coli on a large-scale chicken farm in Vietnam. J Glob Antimicrob Resist 2017; 13:1-6. [PMID: 29030311 DOI: 10.1016/j.jgar.2017.09.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 08/28/2017] [Accepted: 09/21/2017] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVES Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli have disseminated worldwide. This study investigated blaCTX-M-positive E. coli on a large-scale Vietnamese chicken farm and analysed whether there was any difference in prevalence and molecular characteristics of blaCTX-M-positive E. coli between the farm and the Vietnamese community. METHODS Faecal samples were collected from 24 human individuals and 38 chickens from the large-scale chicken farm as well as 51 humans and 36 chickens from the community. All samples were collected between June 2013 and June 2014 in Bavi Province in the Red River Delta region of Vietnam. Molecular characterisation of CTX-M-producing E. coli and genetic relatedness among the isolates were evaluated by conventional typing methods. Antimicrobial susceptibility of the isolates was evaluated by the disk diffusion method. RESULTS The prevalence of blaCTX-M-positive E. coli was 83.3%, 71.1%, 54.9% and 13.9% in farm workers, farm chickens, community individuals and community backyard chickens, respectively. On average, blaCTX-M-positive E. coli isolates from farm chickens were resistant to 8.3 different antibiotics. The average number of detected aminoglycoside-modifying enzyme genes (3.4 genes) and the detection rate of the plasmid-mediated colistin resistance gene mcr-1 (33.3%) were higher in blaCTX-M-positive E. coli isolated from farm chickens compared with other sampling groups. In addition, two types of indistinguishable pulsed-field gel electrophoresis (PFGE) patterns were observed in six blaCTX-M-65-positive E. coli and three blaCTX-M-55-positive E. coli from farm chickens. CONCLUSIONS These results suggest a more frequent transmission opportunity of blaCTX-M-positive E. coli on the large-scale Vietnamese chicken farm.
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Casella T, Nogueira MCL, Saras E, Haenni M, Madec JY. High prevalence of ESBLs in retail chicken meat despite reduced use of antimicrobials in chicken production, France. Int J Food Microbiol 2017; 257:271-275. [DOI: 10.1016/j.ijfoodmicro.2017.07.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 06/02/2017] [Accepted: 07/05/2017] [Indexed: 11/26/2022]
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Kennedy CA, Fanning S, Karczmarczyk M, Byrne B, Monaghan Á, Bolton D, Sweeney T. Characterizing the Multidrug Resistance of non-O157 Shiga Toxin-ProducingEscherichia coliIsolates from Cattle Farms and Abattoirs. Microb Drug Resist 2017; 23:781-790. [DOI: 10.1089/mdr.2016.0082] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Carrie-Ann Kennedy
- Cell Molecular Biology Laboratory, School of Veterinary Medicine, Veterinary Science Centre, University College Dublin, Dublin, Ireland
| | - Séamus Fanning
- UCD-Centre for Food Safety, School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland
| | - Maria Karczmarczyk
- UCD-Centre for Food Safety, School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland
| | - Brian Byrne
- Teagasc, Ashtown Food Research Centre, Dublin, Ireland
| | - Áine Monaghan
- Teagasc, Ashtown Food Research Centre, Dublin, Ireland
| | - Declan Bolton
- Teagasc, Ashtown Food Research Centre, Dublin, Ireland
| | - Torres Sweeney
- Cell Molecular Biology Laboratory, School of Veterinary Medicine, Veterinary Science Centre, University College Dublin, Dublin, Ireland
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Alonso CA, Alcalá L, Simón C, Torres C. Novel sequence types of extended-spectrum and acquired AmpC beta-lactamase producing Escherichia coli and Escherichia clade V isolated from wild mammals. FEMS Microbiol Ecol 2017; 93:4004838. [DOI: 10.1093/femsec/fix097] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 07/21/2017] [Indexed: 11/12/2022] Open
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Abstract
For several billion years, bacteria have developed mechanisms to resist antibacterial substances. In modern time, antibiotics are frequently used in veterinary and human medicine for prevention and treatment of diseases, globally still also for their growth promoting effects as feed additives. This complex situation has evolved in accelerating development and prevalence of multi-drug resistant bacteria in livestock and people. Extended-spectrum beta-lactamase (ESBL) producing bacteria are resistant to a wide range of ß-lactam antibiotics. They are currently considered as one of the main threats for the treatment of infections in humans and animals. In livestock and animal products, poultry and poultry products show the highest prevalence of ESBL-producers with CTX-M-1, TEM-52 and SHV-12 being the most common ESBL-types in poultry. Escherichia coli and Salmonella spp. are the bacteria in poultry, which carry ESBL-genes most frequently. ESBL-producing bacteria are present at every level of the poultry production pyramid and can be detected even in the meconium of newly hatched chicks. The environment close to poultry barns shows high prevalence rates of these bacteria and contributes to an ongoing infection pressure with further ESBL-types. Probiotics have been shown to successfully reduce ESBL-producers in chicken, as well as ESBL-gene transfer. Other feed additives, such as zinc and copper, increase the prevalence of ESBL-producing bacteria when fed to animals. To our best knowledge, this is the first publication presenting a comparative overview of the prevalence of ESBL-types using data from different countries. To reduce the hazard for public health from poultry carrying high numbers of ESBL-producers, preventive measurements must include the surrounding environment and avoidance of antibiotic usage at all levels of the production pyramid. The first results, of the research on the impact of feed additives on the spread of ESBL-genes, indicate the diet as a further, possible magnitude of influence.
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Klimienė I, Virgailis M, Kerzienė S, Šiugždinienė R, Mockeliūnas R, Ružauskas M. Evaluation of genotypical antimicrobial resistance in
ESBL
producing
Escherichia coli
phylogenetic groups isolated from retail poultry meat. J Food Saf 2017. [DOI: 10.1111/jfs.12370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Irena Klimienė
- Institute of Microbiology and Virology, Lithuanian University of Health SciencesTilžes str. 18, Kaunas, LT‐47181 Lithuania
| | - Marius Virgailis
- Institute of Microbiology and Virology, Lithuanian University of Health SciencesTilžes str. 18, Kaunas, LT‐47181 Lithuania
| | - Sigita Kerzienė
- Department of Physics, Mathematics and BiophysicsLithuanian University of Health SciencesTilžes str. 18, Kaunas, LT‐47181 Lithuania
| | - Rita Šiugždinienė
- Institute of Microbiology and Virology, Lithuanian University of Health SciencesTilžes str. 18, Kaunas, LT‐47181 Lithuania
| | - Raimundas Mockeliūnas
- Institute of Microbiology and Virology, Lithuanian University of Health SciencesTilžes str. 18, Kaunas, LT‐47181 Lithuania
| | - Modestas Ružauskas
- Institute of Microbiology and Virology, Lithuanian University of Health SciencesTilžes str. 18, Kaunas, LT‐47181 Lithuania
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Alonso C, Zarazaga M, Ben Sallem R, Jouini A, Ben Slama K, Torres C. Antibiotic resistance inEscherichia coliin husbandry animals: the African perspective. Lett Appl Microbiol 2017; 64:318-334. [DOI: 10.1111/lam.12724] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/08/2017] [Accepted: 02/10/2017] [Indexed: 12/12/2022]
Affiliation(s)
- C.A. Alonso
- Área Bioquímica y Biología Molecular; Universidad de La Rioja; Logroño Spain
| | - M. Zarazaga
- Área Bioquímica y Biología Molecular; Universidad de La Rioja; Logroño Spain
| | - R. Ben Sallem
- Faculté des Sciences de Tunis; Laboratoire des Microorganismes et Biomolécules Actives; Université de Tunis El Manar; Tunis Tunisia
| | - A. Jouini
- Laboratoire d’Épidémiologie et Microbiologie Vétérinaire. Institut Pasteur de Tunis; Université de Tunis El Manar; Tunis Tunisia
| | - K. Ben Slama
- Faculté des Sciences de Tunis; Laboratoire des Microorganismes et Biomolécules Actives; Université de Tunis El Manar; Tunis Tunisia
| | - C. Torres
- Área Bioquímica y Biología Molecular; Universidad de La Rioja; Logroño Spain
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Doi Y, Iovleva A, Bonomo RA. The ecology of extended-spectrum β-lactamases (ESBLs) in the developed world. J Travel Med 2017; 24:S44-S51. [PMID: 28521000 PMCID: PMC5731446 DOI: 10.1093/jtm/taw102] [Citation(s) in RCA: 157] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/28/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND Since the initial appearance in the 1980s, Enterobacteriaceae producing extended-spectrum β-lactamase (ESBL) have increased in prevalence and emerged as a major antimicrobial-resistant pathogen. The source of these antimicrobial-resistant bacteria in the developed world is an area of active investigation. METHODS A standard internet search was conducted with a focus on the epidemiology and potential sources of ESBL-producing Enterobacteriaceae in the developed world. RESULTS The last decade has witnessed several major changes in the epidemiology of these bacteria: replacement of TEM and SHV-type ESBLs by CTX-M-family ESBLs, emergence of Escherichia coli ST131 as a prevalent vehicle of ESBL, and spread of ESBL-producing E. coli in the community. The most studied potential sources of ESBL-producing Enterobacteriaceae in humans in the community include food and companion animals, the environment and person-to-person transmission, though definitive links are yet to be established. Evidence is emerging that international travel may serve as a major source of introduction of ESBL-producing Enterobacteriaceae into the developed world. CONCLUSIONS ESBL-producing Enterobacteriaceae has become a major multidrug-resistant pathogen in the last two decades, especially in the community settings. The multifactorial nature of its expansion poses a major challenge in the efforts to control them.
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Affiliation(s)
- Yohei Doi
- Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Alina Iovleva
- Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Robert A Bonomo
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States.,Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States.,Research Service, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, Ohio, United States of America.,Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States.,Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
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39
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Yamamoto S, Asakura H, Igimi S. Recent Trends for the Prevalence and Transmission Risk of Extended Spectrum β-Lactamases (ESBL) Producing Bacteria in Foods. Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 2017; 58:1-11. [PMID: 28260727 DOI: 10.3358/shokueishi.58.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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40
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Çakir Erdoğan D, Cömert F, Aktaş E, Köktürk F, Külah C. Fecal carriage of extended-spectrum beta-lactamase-producing Escherichia coli and Klebsiella spp. in a Turkish community. Turk J Med Sci 2017; 47:172-179. [PMID: 28263486 DOI: 10.3906/sag-1512-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 05/24/2016] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND/AIM The aim of this study was to determine the prevalence of fecal carriage of extended-spectrum beta-lactamase (ESBL)-producing bacteria, enzyme types, and risk factors affecting colonization. MATERIALS AND METHODS A total of 576 stool samples from outpatients were examined between October 2012 and May 2013. Screening was done with selective EMB plates. ESBL were detected by double-disk synergy and confirmed agar strip gradient methods. Enzyme types were determined by PCR. RESULTS The prevalence of fecal carriage was found as 30% (173 of 576). Recent use of antibiotics, hospitalization and surgical operation, diabetes, crowded household populations, and old age were associated with higher carriage rates. Of the ESBL-producing bacteria, 87.5% were positive for blaCTX-M genes. Of the blaCTX-M gene-positive isolates, 95.2% were positive for blaCTX-M-1 genes; among these, 82.2% were positive for blaCTX-M-3 and 67.7% were positive for blaCTX-M-15 genes while 62.5% isolates were positive for both blaCTX-M-3 and blaCTX-M-15 genes Conclusions: A high rate (30%) of fecal carriage of ESBL bacteria was found in an adult population. The predominant beta-lactamase enzyme types were CTX-M-3 and CTX-M-15.
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Affiliation(s)
- Derya Çakir Erdoğan
- Department of Medical Microbiology, Faculty of Medicine, Bülent Ecevit University, Zonguldak, Turkey
| | - Füsun Cömert
- Department of Medical Microbiology, Faculty of Medicine, Bülent Ecevit University, Zonguldak, Turkey
| | - Elif Aktaş
- Department of Medical Microbiology, Şişli Etfal Research and Training Hospital, İstanbul, Turkey
| | - Fürüzan Köktürk
- Department of Biostatistics, Faculty of Medicine, Bülent Ecevit University, Zonguldak, Turkey
| | - Canan Külah
- Department of Medical Microbiology, Faculty of Medicine, Bülent Ecevit University, Zonguldak, Turkey
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Alcalá L, Alonso CA, Simón C, González-Esteban C, Orós J, Rezusta A, Ortega C, Torres C. Wild Birds, Frequent Carriers of Extended-Spectrum β-Lactamase (ESBL) Producing Escherichia coli of CTX-M and SHV-12 Types. MICROBIAL ECOLOGY 2016; 72:861-869. [PMID: 26687342 DOI: 10.1007/s00248-015-0718-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 12/04/2015] [Indexed: 05/11/2023]
Abstract
To get a better insight into the role of birds as reservoirs of extended-spectrum β-lactamase (ESBL) and plasmidic AmpC β-lactamase (pAmpC) Escherichia coli producers, 100 fecal samples belonging to 15 different wild avian species from Northern Spain were analyzed. Cefotaxime-resistant (CTXR) E. coli isolates were identified in 16 of the 100 tested birds, which corresponded to 9 animal species (Gyps fulvus-griffon vulture, Larus michahellis-yellow-legged gull, Milvus migrans-black kite, Milvus milvus-red kite, Ciconia ciconia-white stork, Sturnus unicolor-spotless starling, Aquila chrysaetos-golden eagle, Cuculus canorus-common cuckoo, Tyto alba-barn owl). Fifteen isolates harbored ESBL or pAmpC-encoding genes (number of isolates): bla SHV-12 (9), bla CTX-M-1 (3), bla CTX-M-14 (2), and bla CMY-2 (1). The last CTXR isolate presented a -42-point-mutation in the chromosomal ampC promoter. Eleven out of 15 ESBL/pAmpC E. coli isolates were multiresistant (most common resistance phenotype: β-lactams-quinolones-tetracycline-sulfamethoxazole/trimethoprim). A plasmid-mediated quinolone resistance determinant (qnrS1) was identified in one E. coli from a barn owl. High genetic diversity was observed among ESBL/pAmpC E. coli isolates, with 12 different sequence types (STs), including several strains of STs frequently detected among human clinical isolates (ST38/D, ST131/B2, ST155/B1, ST10/A). The ST131 isolate belonged to the emergent ciprofloxacin-resistant H30R subclone. This study reveals a high percentage of bird as carriers of ESBL/pAmpC E. coli isolates in Spain, highlighting the elevated rate among storks, kites, and vultures. Wild birds can contribute to the global spread of ESBL/pAmpC-producing E. coli in natural ecosystems.
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Affiliation(s)
- Leticia Alcalá
- Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - Carla Andrea Alonso
- Área de Bioquímica y Biología Molecular, Universidad de La Rioja, Madre de Dios 51, 26006, Logroño, Spain
| | - Carmen Simón
- Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - Chabier González-Esteban
- Centro de Recuperación de Fauna Silvestre de La Alfranca, Departamento de Agricultura, Ganadería y Medio Ambiente, Gobierno de Aragón, Spain
| | - Jesús Orós
- Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - Antonio Rezusta
- Servicio de Microbiología, Hospital Universitario Miguel Servet, Zaragoza, Universidad de Zaragoza, IIS Aragón, Spain
| | - Carmelo Ortega
- Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - Carmen Torres
- Área de Bioquímica y Biología Molecular, Universidad de La Rioja, Madre de Dios 51, 26006, Logroño, Spain.
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Evaluation of meat, fruit and vegetables from retail stores in five United Kingdom regions as sources of extended-spectrum beta-lactamase (ESBL)-producing and carbapenem-resistant Escherichia coli. Int J Food Microbiol 2016; 241:283-290. [PMID: 27821357 DOI: 10.1016/j.ijfoodmicro.2016.10.036] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 09/15/2016] [Accepted: 10/28/2016] [Indexed: 02/06/2023]
Abstract
We determined the prevalence and types of extended-spectrum β-lactamase (ESBL)-producing and carbapenem-resistant Escherichia coli in raw retail beef, chicken, pork, fruit and vegetables in five UK regions in 2013-14. Raw meat (n=397), and fruit and vegetable samples (n=400) were purchased from retail stores in London, East Anglia, North West England, Scotland and Wales. Samples were tested for the presence of ESBL-producing E. coli by plating enriched samples on CHROMagar CTX and CHROMagar ESBL, for AmpC-type E. coli by plating on "CHROMagar FOX" (CHROMagar ECC+16mg/L cefoxitin), and for carbapenem-resistant E. coli by plating on CHROMagar KPC. Additionally, pre-enrichment counts were performed on the above agars, and on CHROMagar ECC. Isolates of interest were characterised by MALDI-ToF to confirm identification, by PCR for blaCIT,blaCTX-M,blaOXA, blaSHV and blaTEM genes; ESBL or blaCIT genes were sequenced. Only 1.9% and 2.5% of beef and pork samples, respectively were positive for ESBL-producing E. coli after enrichment compared with 65.4% of chicken samples. 85.6% positive samples from chicken meat carried blaCTX-M-1; blaCTX-M-15 was not detected. None of the fruits or vegetables yielded ESBL-producing E. coli and none of the meat, fruit or vegetable samples yielded carbapenem-resistant E. coli. Retail chicken was more frequently a source of ESBL-producing E. coli than were beef, pork, fruit or vegetables. None of the foodstuffs yielded E. coli with CTX-M-15 ESBL, which dominates in human clinical isolates in the UK, and none yielded carbapenem-resistant E. coli.
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43
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Hoang Minh D, Hoang Minh S, Honjoh KI, Miyamoto T. Isolation and bio-control of Extended Spectrum Beta-Lactamase (ESBL)-producing Escherichia coli contamination in raw chicken meat by using lytic bacteriophages. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2016.04.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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44
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Ghodousi A, Bonura C, Di Carlo P, van Leeuwen WB, Mammina C. Extraintestinal pathogenic Escherichia coli sequence type 131 H30-R and H30-Rx subclones in retail chicken meat, Italy. Int J Food Microbiol 2016; 228:10-3. [DOI: 10.1016/j.ijfoodmicro.2016.04.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 03/31/2016] [Accepted: 04/01/2016] [Indexed: 10/22/2022]
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45
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Quantification of ESBL-Escherichia coli on broiler carcasses after slaughtering in Germany. Food Microbiol 2016. [DOI: 10.1016/j.fm.2015.10.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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46
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Modelling the epidemiology of Escherichia coli ST131 and the impact of interventions on the community and healthcare centres. Epidemiol Infect 2016; 144:1974-82. [PMID: 26838136 DOI: 10.1017/s0950268816000030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
ST131 Escherichia coli is an emergent clonal group that has achieved successful worldwide spread through a combination of virulence and antimicrobial resistance. Our aim was to develop a mathematical model, based on current knowledge of the epidemiology of ESBL-producing and non-ESBL-producing ST131 E. coli, to provide a framework enabling a better understanding of its spread within the community, in hospitals and long-term care facilities, and the potential impact of specific interventions on the rates of infection. A model belonging to the SEIS (Susceptible-Exposed-Infected-Susceptible) class of compartmental models, with specific modifications, was developed. Quantification of the model is based on the law of mass preservation, which helps determine the relationships between flows of individuals and different compartments. Quantification is deterministic or probabilistic depending on subpopulation size. The assumptions for the model are based on several developed epidemiological studies. Based on the assumptions of the model, an intervention capable of sustaining a 25% reduction in person-to-person transmission shows a significant reduction in the rate of infections caused by ST131; the impact is higher for non-ESBL-producing ST131 isolates than for ESBL producers. On the other hand, an isolated intervention reducing exposure to antimicrobial agents has much more limited impact on the rate of ST131 infection. Our results suggest that interventions achieving a continuous reduction in the transmission of ST131 in households, nursing homes and hospitals offer the best chance of reducing the burden of the infections caused by these isolates.
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47
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Pehlivanlar Önen S, Aslantaş Ö, Şebnem Yılmaz E, Kürekci C. Prevalence of β-Lactamase Producing Escherichia coli from Retail Meat in Turkey. J Food Sci 2015; 80:M2023-9. [PMID: 26256548 DOI: 10.1111/1750-3841.12984] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 06/23/2015] [Indexed: 11/30/2022]
Abstract
Extended spectrum β-lactamase (ESBL) and plasmid-mediated AmpC β-lactamase (pAmpC) producing Escherichia coli have been shown to be present in humans and animals representing a significant problem worldwide. This study aimed to search the presence of ESBL and/or AmpC-producing E. coli in retail meats (chicken and beef) in Turkey. A total of 88 β-lactamase-producing E. coli were isolated from chicken (n = 81/100) and beef meat (n = 7/100) samples and their susceptibility to several antimicrobials were tested using disc diffusion method. E. coli isolates were further characterized for their phylogenetic groups. β-Lactamase encoding (blaTEM , blaSHV , blaOXA , blaCTX-M , and blaAmpC ) and quinolone resistance genes (qnrA, qnrB, qnrS, qepA, and acc(6')-Ib-cr) were also secreened by polymerase chain reaction (PCR). However, in regard to β-lactamase genes, 84 of 88 isolates were positive for blaCTX-M-1 (n = 39), blaCTX-M-3 (n = 5), blaCTX-M-15 (n = 4), blaTEM-1b (n = 2), blaSHV-12 (n = 1), blaCTX-M-1 /blaTEM-1b (n = 10), blaCTX-M-1 /blaTEM-1b /blaSHV-5 (n = 1), blaCTX-M-1 /blaCMY-2 (n = 1) and blaTEM-1b /blaCMY-2 (n = 6), blaCTX-M-15 /blaSHV-12 (n = 1), blaCTX-M-15 /blaTEM-1b (n = 1), blaTEM-1b /blaSHV-12 (n = 1), and blaCMY-2 (n = 12) genes. Resistance to cefuroxime (75.6% and 85.7%), nalidixic acid (89% and 85.7%), tetracycline (91.4% and 100%), streptomycin (40.2% and 100%), and trimethoprim-sulfamethoxazole (36.6% and 85.7%) was observed among strains isolated from chicken and beef, respectively. However, all isolates were found to be susceptible to amikacin, imipenem, and cefepime. Resistance to ampicillin and cefoxitin was significantly linked to blaCMY-2 gene, while there was a significant correlation between CTX-M type ESBL and antimicrobial resistance to cefuroxime and streptomycin (P < 0.05). The results of this study suggest that raw chicken retail meats are highly contaminated with ESBL-producing E. coli implementing a great risk to human health in Turkey.
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Affiliation(s)
- Sevda Pehlivanlar Önen
- Dept. of Food Hygiene and Technology, Faculty of Veterinary Medicine, Mustafa Kemal Univ, Hatay, Turkey
| | - Özkan Aslantaş
- Dept. of Microbiology, Faculty of Veterinary Medicine, Mustafa Kemal Univ, Hatay, Turkey
| | - Ebru Şebnem Yılmaz
- Dept. of Biology, Faculty of Art and Science, Mustafa Kemal Univ, Hatay, Turkey
| | - Cemil Kürekci
- Dept. of Food Hygiene and Technology, Faculty of Veterinary Medicine, Mustafa Kemal Univ, Hatay, Turkey
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48
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Lim JS, Choi DS, Kim YJ, Chon JW, Kim HS, Park HJ, Moon JS, Wee SH, Seo KH. Characterization of Escherichia coli-Producing Extended-Spectrum β-Lactamase (ESBL) Isolated from Chicken Slaughterhouses in South Korea. Foodborne Pathog Dis 2015. [PMID: 26219023 DOI: 10.1089/fpd.2014.1921] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In South Korea, few reports have indicated the occurrence and characteristics of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli in food-producing animals, particularly in poultry slaughterhouses. In this study, we investigated the occurrence and antibiotic resistance of ESBL-producing E. coli from whole chicken carcasses (n=156) and fecal samples (n=39) of chickens obtained from 2 slaughterhouses. Each sample enriched in buffered peptone water was cultured on MacConkey agar with 2 mg/L cefotaxime and ESBL agar. ESBL production and antibiotic susceptibility were determined using the Trek Diagnostics system. The ESBL genotypes were determined by polymerase chain reaction (PCR) using the bla(SHV), bla(TEM), and bla(CTX-M) gene sequences. Subtyping using a repetitive sequence-based PCR system (DiversiLab™) and multilocus sequence typing (MLST) were used to assess the interspecific biodiversity of isolates. Sixty-two ESBL-producing E. coli isolates were obtained from 156 samples (39.7%). No bla(SHV) genes were detected in any of the isolates, whereas all contained the bla(TEM) gene. Twenty-five strains (40.3%) harbored the CTX-M group 1 gene. The most prevalent MLST sequence type (ST) was ST 93 (14.5%), followed by ST 117 (9.7%) and ST 2303 (8.1%). This study reveals a high occurrence and β-lactams resistance rate of E. coli in fecal samples and whole chickens collected from slaughterhouses in South Korea.
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Affiliation(s)
- Jong-Soo Lim
- 1 KU Center for Food Safety, College of Veterinary Medicine, Konkuk University , Seoul, Korea
| | - Da-Som Choi
- 1 KU Center for Food Safety, College of Veterinary Medicine, Konkuk University , Seoul, Korea
| | - Young-Jo Kim
- 2 Ministry of Food and Drug Safety, Food and Drug Administration , Cheongwon, Korea
| | - Jung-Whan Chon
- 3 Department of Animal Science and Technology, Konkuk University , Seoul, Korea
| | - Hong-Seok Kim
- 1 KU Center for Food Safety, College of Veterinary Medicine, Konkuk University , Seoul, Korea
| | - Hyun-Jung Park
- 2 Ministry of Food and Drug Safety, Food and Drug Administration , Cheongwon, Korea
| | - Jin-San Moon
- 4 Animal and Plant Quarantine Agency , Anyang, Gyeonggi, Korea
| | - Sung-Hwan Wee
- 4 Animal and Plant Quarantine Agency , Anyang, Gyeonggi, Korea
| | - Kun-Ho Seo
- 1 KU Center for Food Safety, College of Veterinary Medicine, Konkuk University , Seoul, Korea
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Abstract
In 2008, a previously unknown Escherichia coli clonal group, sequence type 131 (ST131), was identified on three continents. Today, ST131 is the predominant E. coli lineage among extraintestinal pathogenic E. coli (ExPEC) isolates worldwide. Retrospective studies have suggested that it may originally have risen to prominence as early as 2003. Unlike other classical group B2 ExPEC isolates, ST131 isolates are commonly reported to produce extended-spectrum β-lactamases, such as CTX-M-15, and almost all are resistant to fluoroquinolones. Moreover, ST131 E. coli isolates are considered to be truly pathogenic, due to the spectrum of infections they cause in both community and hospital settings and the large number of virulence-associated genes they contain. ST131 isolates therefore seem to contradict the widely held view that high levels of antimicrobial resistance are necessarily associated with a fitness cost leading to a decrease in pathogenesis. Six years after the first description of E. coli ST131, this review outlines the principal traits of ST131 clonal group isolates, based on the growing body of published data, and highlights what is currently known and what we need to find out to provide public health authorities with better information to help combat ST131.
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50
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Ahmed AM, Shimamoto T. Molecular analysis of multidrug resistance in Shiga toxin-producing Escherichia coli O157:H7 isolated from meat and dairy products. Int J Food Microbiol 2015; 193:68-73. [DOI: 10.1016/j.ijfoodmicro.2014.10.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 10/07/2014] [Accepted: 10/12/2014] [Indexed: 12/28/2022]
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