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Chaves AC, Boa Ventura PDV, Pereira MS, da Silva BF, de Carvalho FJN, Costa RA, Lima BP, Maciel WC, Carneiro VA. Preliminary snapshot reveals a relationship between multidrug-resistance and biofilm production among enterobacteriaceae isolated from fecal samples of farm-raised poultry in ceará, Brazil. Microb Pathog 2024; 193:106778. [PMID: 38972366 DOI: 10.1016/j.micpath.2024.106778] [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: 03/26/2024] [Revised: 06/24/2024] [Accepted: 07/01/2024] [Indexed: 07/09/2024]
Abstract
Antimicrobial resistance and biofilm formation by microbial pathogens pose a significant challenge to poultry production systems due to the persistent risk of dissemination and compromise of bird health and productivity. In this context, the study aimed to investigate the occurrence of different multiresistance phenotypes and the biofilm-forming ability of Enterobacteriaceae isolated from broiler chicken excreta in poultry production units in Ceará, Brazil. Samples were collected from three distinct broiler breeding facilities and subjected to isolation, identification, antibiotic susceptibility testing, phenotypic screening for β-lactamases enzymes, and biofilm formation evaluation. Seventy-one strains were identified, being Escherichia coli (37 %) and Proteus mirabilis (32 %), followed by Klebsiella pneumoniae (11 %), Providencia stuartii (9 %), Klebsiella aerogenes (6 %), Alcaligenes faecalis (4 %), and Salmonella sp. (1 %). A significant proportion (87 %) of multiresistant strains were detected. For the phenotypic evaluation of β-lactamases production, strains with resistance to second and third-generation cephalosporins and carbapenems were tested. About 4 of 6 and 10 of 26 were positive for inducible chromosomal AmpC β-lactamase and extended-spectrum β-lactamase (ESBL), respectively. Regarding biofilm formation, it was observed that all MDR strains were capable of forming biofilm. In this sense. the potential of these MDR bacteria to develop biofilms becomes a significant concern, representing a real threat to both human and animal health, as biofilms offer stability, antimicrobial protection, and facilitate genetic transfer.
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Affiliation(s)
- Andrey Carvalho Chaves
- Center for Bioprospecting and Applied Molecular Experimentation (NUBEM), University Center INTA - UNINTA, Sobral, 62.050-100, Brazil; Laboratory for Avian Pathological Studies (LABEO), Faculty of Veterinary Medicine, State University of Ceará - UECE, Fortaleza, 60.714.903, Brazil
| | - Priscila de Vasconcelos Boa Ventura
- Center for Bioprospecting and Applied Molecular Experimentation (NUBEM), University Center INTA - UNINTA, Sobral, 62.050-100, Brazil; Laboratory for Avian Pathological Studies (LABEO), Faculty of Veterinary Medicine, State University of Ceará - UECE, Fortaleza, 60.714.903, Brazil
| | - Mainara Saraiva Pereira
- Center for Bioprospecting and Applied Molecular Experimentation (NUBEM), University Center INTA - UNINTA, Sobral, 62.050-100, Brazil
| | - Benise Ferreira da Silva
- Center for Bioprospecting and Applied Molecular Experimentation (NUBEM), University Center INTA - UNINTA, Sobral, 62.050-100, Brazil; Northeast Network of Biotechnology Program (RENORBIO), State University of Ceará, Campus Itaperi, Fortaleza, 60714-903, Brazil
| | - Felipe José Negreiros de Carvalho
- Center for Bioprospecting and Applied Molecular Experimentation (NUBEM), University Center INTA - UNINTA, Sobral, 62.050-100, Brazil
| | - Renata Albuquerque Costa
- Center for Bioprospecting and Applied Molecular Experimentation (NUBEM), University Center INTA - UNINTA, Sobral, 62.050-100, Brazil
| | - Bruno Pessoa Lima
- Laboratory for Avian Pathological Studies (LABEO), Faculty of Veterinary Medicine, State University of Ceará - UECE, Fortaleza, 60.714.903, Brazil
| | - William Cardoso Maciel
- Laboratory for Avian Pathological Studies (LABEO), Faculty of Veterinary Medicine, State University of Ceará - UECE, Fortaleza, 60.714.903, Brazil
| | - Victor Alves Carneiro
- Center for Bioprospecting and Applied Molecular Experimentation (NUBEM), University Center INTA - UNINTA, Sobral, 62.050-100, Brazil.
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O'Ferrall AM, Musaya J, Stothard JR, Roberts AP. Aligning antimicrobial resistance surveillance with schistosomiasis research: an interlinked One Health approach. Trans R Soc Trop Med Hyg 2024:trae035. [PMID: 38842743 DOI: 10.1093/trstmh/trae035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 04/02/2024] [Accepted: 05/08/2024] [Indexed: 06/07/2024] Open
Abstract
One Health surveillance involves the analysis of human, animal and environmental samples, recognising their interconnectedness in health systems. Such considerations are crucial to investigate the transmission of many pathogens, including drug-resistant bacteria and parasites. The highest rates of antimicrobial resistance (AMR)-associated deaths are observed in sub-Saharan Africa, where concurrently the waterborne parasitic disease schistosomiasis can be highly endemic in both humans and animals. Although there is growing acknowledgment of significant interactions between bacteria and parasites, knowledge of relationships between schistosomes, microbes and AMR remains inadequate. In addition, newly emergent research has revealed the previously underappreciated roles of animals and the environment in both AMR and schistosomiasis transmission. We consider shared environmental drivers and colonisation linkage in this narrative review, with a focus on extended-spectrum beta-lactamase-mediated resistance among bacteria from the Enterobacteriaceae family, which is exceedingly prevalent and responsible for a high burden of AMR-associated deaths. Then we examine novel findings from Malawi, where the landscapes of AMR and schistosomiasis are rapidly evolving, and make comparisons to other geographic areas with similar co-infection epidemiology. We identify several knowledge gaps that could be addressed in future research, including the need to characterise the impact of intestinal schistosomiasis and freshwater contact on intestinal AMR colonisation, before proposing a rationale for connecting AMR surveillance and schistosomiasis research within a One Health framework.
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Affiliation(s)
- Angus M O'Ferrall
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool L3 5QA, UK
| | - Janelisa Musaya
- Malawi Liverpool Wellcome Clinical Research Programme, Queen Elizabeth Central Hospital, College of Medicine, P.O. Box 30096 Chichiri, Blantyre 3, Malawi
| | - J Russell Stothard
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool L3 5QA, UK
| | - Adam P Roberts
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool L3 5QA, UK
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Vougat Ngom R, Jajere SM, Ayissi GJ, Tanyienow A, Moffo F, Watsop HM, Mimboe LM, Mouiche MM, Schüpbach-Regula G, Carmo LP. Unveiling the landscape of resistance against high priority critically important antimicrobials in food-producing animals across Africa: A scoping review. Prev Vet Med 2024; 226:106173. [PMID: 38503073 DOI: 10.1016/j.prevetmed.2024.106173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 02/10/2024] [Accepted: 03/06/2024] [Indexed: 03/21/2024]
Abstract
The rapid population growth in Africa is associated with an increasing demand for livestock products which in turn can lead to antimicrobial use. Antimicrobial usage in animals contributes to the emergence and selection of resistant bacteria which constitutes a serious public health threat. This study aims to review and summarize the available information on highest priority critically important antimicrobials (HPCIAs) resistance in livestock production in Africa. This work will help to inform future policies for controlling antimicrobial resistance (AMR) in the food production chain. A scoping review was conducted according to the Cochrane handbook and following PRISMA 2020 guidelines for reporting. Primary research studies published after 1999 and reporting resistance of Escherichia coli, Enterococcus spp, Staphylococcus aureus, Salmonella spp, and Campylobacter spp to HPCIAs in poultry, cattle, pigs, goats, and sheep in Africa were searched in four databases. A total of 312 articles were included in the review. The majority of the studies (40.7) were conducted in North African countries. More than 49.0% of included studies involved poultry and 26.2% cattle. Cephalosporins and quinolones were the most studied antimicrobial classes. Of the bacteria investigated in the current review, E. coli (41.7%) and Salmonella spp (24.9%) represented the most commonly studied. High levels of resistance against erythromycin in E. coli were found in poultry (MR 96.1%, IQR 83.3-100.0%), cattle (MR 85.7%, IQR 69.2-100.0%), and pigs (MR 94.0%, IQR 86.2-94.0%). In sheep, a high level of resistance was observed in E. coli against nalidixic acid (MR 87.5%, IQR 81.3-93.8%). In goats, the low level of sensibility was noted in S. aureus against streptomycin (MR 86.8%, IQR 19.4-99.0%). The study provides valuable information on HPCIAs resistance in livestock production in Africa and highlights the need for further research and policies to address the public health risk of AMR. This will likely require an investment in diagnostic infrastructure across the continent. Awareness on the harmful impact of AMR in African countries is a requirement to produce more effective and sustainable measures to curb AMR.
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Affiliation(s)
- Ronald Vougat Ngom
- School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Saleh M Jajere
- Faculty of Veterinary Medicine, University of Maiduguri, Borno State, Nigeria
| | - Gaspard Ja Ayissi
- School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Akenghe Tanyienow
- School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Frédéric Moffo
- School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Hippolyte M Watsop
- School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Leina M Mimboe
- School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Mohamed Mm Mouiche
- School of Veterinary Medicine and Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | | | - Luís Pedro Carmo
- Veterinary Public Health Institute, Vetsuisse Faculty, University of Bern, Bern, Switzerland; Norwegian Veterinary Institute, Elizabeth Stephansens vei 1, Ås 1433, Norway
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Ouaddane I, Goumballa N, Tran XD, Diouf C, Diene SM, Rolain JM, Sokhna C, Gautret P. Epidemiology of bacterial resistance at the Grand Magal of Touba in Senegal. Travel Med Infect Dis 2024; 59:102709. [PMID: 38479605 DOI: 10.1016/j.tmaid.2024.102709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 03/05/2024] [Indexed: 03/17/2024]
Abstract
BACKGROUND The Grand Magal of Touba (GMT) associates with risks of infection, but no study on the circulation of resistant bacteria has yet been conducted. MATERIALS AND METHODS qPCR was performed on rectal samples from GMT pilgrims between 2018 and 2021, before and after their participation in the gathering. Rectal samples from between 2018 and 2020 were also cultured on specific media, and antibiotic susceptibility testing was performed. RESULTS Forty-one of the 296 (13.8%) pilgrims had at least one gastrointestinal symptom and 91/290 (31.4%) acquired pathogenic bacteria, mostly Escherichia coli. A total of 54.7% of pilgrims reported washing their hands more frequently than usual and 89.2% used soap. One hundred and five (36.2%) acquired at least one resistance gene, notably CTX-M A (21.0%), SHV (16.5%) and TEM (8.2%). The strains isolated by culture were mostly E. coli. These bacteria were found to be sensitive to carbapenems and resistant to amoxicillin and amoxicillin-clavulanic acid. The acquisition of enteroaggregative E. coli was independently associated with CTX-M A and TEM acquisition. CONCLUSION Pilgrims presented a risk for acquisition of CTX-M A after the GMT. Surveillance of the prevalence of resistant bacteria and the occurrence of associated clinical infections among pilgrims are necessary in the future.
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Affiliation(s)
- Ihssane Ouaddane
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France; IHU-Méditerranée Infection, Marseille, France
| | - Ndiaw Goumballa
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France; IHU-Méditerranée Infection, Marseille, France; VITROME, Campus International IRD-UCAD de L'IRD, Dakar, Senegal
| | - Xuan Duong Tran
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France; IHU-Méditerranée Infection, Marseille, France
| | - Coumba Diouf
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France; IHU-Méditerranée Infection, Marseille, France; VITROME, Campus International IRD-UCAD de L'IRD, Dakar, Senegal
| | - Seydina M Diene
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France; IHU-Méditerranée Infection, Marseille, France
| | - Jean-Marc Rolain
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France; IHU-Méditerranée Infection, Marseille, France
| | - Cheikh Sokhna
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France; IHU-Méditerranée Infection, Marseille, France; VITROME, Campus International IRD-UCAD de L'IRD, Dakar, Senegal
| | - Philippe Gautret
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France; IHU-Méditerranée Infection, Marseille, France.
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Manyi-Loh CE, Lues R. A South African Perspective on the Microbiological and Chemical Quality of Meat: Plausible Public Health Implications. Microorganisms 2023; 11:2484. [PMID: 37894142 PMCID: PMC10608972 DOI: 10.3390/microorganisms11102484] [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: 06/30/2023] [Revised: 09/06/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023] Open
Abstract
Meat comprises proteins, fats, vitamins, and trace elements, essential nutrients for the growth and development of the body. The increased demand for meat necessitates the use of antibiotics in intensive farming to sustain and raise productivity. However, the high water activity, the neutral pH, and the high protein content of meat create a favourable milieu for the growth and the persistence of bacteria. Meat serves as a portal for the spread of foodborne diseases. This occurs because of contamination. This review presents information on animal farming in South Africa, the microbial and chemical contamination of meat, and the consequential effects on public health. In South Africa, the sales of meat can be operated both formally and informally. Meat becomes exposed to contamination with different categories of microbes, originating from varying sources during preparation, processing, packaging, storage, and serving to consumers. Apparently, meat harbours diverse pathogenic microorganisms and antibiotic residues alongside the occurrence of drug resistance in zoonotic pathogens, due to the improper use of antibiotics during farming. Different findings obtained across the country showed variations in prevalence of bacteria and multidrug-resistant bacteria studied, which could be explained by the differences in the manufacturer practices, handling processes from producers to consumers, and the success of the hygienic measures employed during production. Furthermore, variation in the socioeconomic and political factors and differences in bacterial strains, geographical area, time, climatic factors, etc. could be responsible for the discrepancy in the level of antibiotic resistance between the provinces. Bacteria identified in meat including Escherichia coli, Listeria monocytogenes, Staphylococcus aureus, Campylobacter spp., Salmonella spp., etc. are incriminated as pathogenic agents causing serious infections in human and their drug-resistant counterparts can cause prolonged infection plus long hospital stays, increased mortality and morbidity as well as huge socioeconomic burden and even death. Therefore, uncooked meat or improperly cooked meat consumed by the population serves as a risk to human health.
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Affiliation(s)
- Christy E. Manyi-Loh
- Centre of Applied Food Sustainability and Biotechnology, Central University of Technology, Bloemfontein 9301, South Africa;
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6
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Mudenda S, Malama S, Munyeme M, Matafwali SK, Kapila P, Katemangwe P, Mainda G, Mukubesa AN, Hadunka MA, Muma JB. Antimicrobial resistance profiles of Escherichia coli isolated from laying hens in Zambia: implications and significance on one health. JAC Antimicrob Resist 2023; 5:dlad060. [PMID: 37223392 PMCID: PMC10202439 DOI: 10.1093/jacamr/dlad060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 04/27/2023] [Indexed: 05/25/2023] Open
Abstract
Background Antimicrobial resistance (AMR) has been deepening in the layer poultry sector in Zambia partly due to the inappropriate use of antimicrobials. Escherichia coli (E. coli), a commensal and zoonotic bacterium, can potentially be a source of AMR. Objectives This study assessed the phenotypic AMR profiles of E. coli isolated from the apparent health-laying hens in Lusaka and Copperbelt provinces of Zambia. Methods A cross-sectional study was conducted between September 2020 and April 2021 in which 365 cloacal swabs were collected from 77-layer farms based in Lusaka and Copperbelt provinces of Zambia. E. coli isolation and identification were done using cultural and biochemical properties and confirmed using the 16S rRNA gene sequencing. Antimicrobial susceptibility testing (AST) was done using the Kirby-Bauer disc-diffusion method. Data analysis was done using WHONET 2020 and Stata v.16.1. Results Of the 365 samples, E. coli was isolated from 92.9% (n = 339). The AMR was detected in 96.5% (n = 327) of the isolates, of which 64.6% (n = 219) were multidrug-resistant (MDR). E. coli was highly resistant to tetracycline (54.6%) and ampicillin (54%) but showed low resistance to meropenem (0.9%), ceftazidime (6.2%) and chloramphenicol (8.8%). Conclusion This study found a high prevalence of E. coli resistant to some commonly used antibiotics in poultry, which is a public health concern because of the potential contamination of eggs and layers of chicken meat that enter the food chain. Urgent attention is needed, including strengthening antimicrobial stewardship and surveillance programmes in layer poultry production in Zambia.
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Affiliation(s)
| | - Sydney Malama
- Department of Biological Sciences, School of Natural Sciences, University of Zambia, Lusaka, Zambia
| | - Musso Munyeme
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Scott Kaba Matafwali
- Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - Penjaninge Kapila
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Patrick Katemangwe
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Geoffrey Mainda
- Department of Veterinary Services, Central Veterinary Research Institute, Ministry of Fisheries and Livestock, Lusaka, Zambia
| | | | - Mwendalubi Albert Hadunka
- Department of Animal Health, Centre for Infectious Disease Research in Zambia (CIDRZ), Lusaka, Zambia
| | - John Bwalya Muma
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
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7
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Somda NS, Tankoano A, Métuor-Dabiré A, Kaboré D, Bonkoungou JOI, Kpoda DS, Sambe-Ba B, Dabiré Y, Saba CKS, Ouoba IL, Sawadogo-Lingani H, Savadogo A. A Systematic Review and Meta-analysis of Antibiotic Resistance of Foodborne Pathogenic Bacteria in West Africa Between 2010 and 2020. J Food Prot 2023; 86:100061. [PMID: 36916564 DOI: 10.1016/j.jfp.2023.100061] [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: 09/15/2022] [Revised: 12/31/2022] [Accepted: 02/02/2023] [Indexed: 02/11/2023]
Abstract
OBJECTIVE In the past, studies on antimicrobial resistance were carried out on pathogens in the clinical areas. However, since then, this phenomenon has become a general case both in the environment and in the food sector. This systematic review aimed to review the various scientific publications on the resistance of bacteria to antibiotics in foods in West Africa. METHODS An extensive literature search was carried out through an electronic database including PubMed, Google Scholar, Research Gate, and African Journals Online (AJOL). Articles published from fifteen countries of the Economic Community of West African States (ECOWAS) between 2010 and 2020 on antibiotic resistance of foodborne pathogens were included in the study. The titles and abstracts of the retrieved articles and then the full texts of the selected articles were reviewed. RESULTS Out of the 565 articles found in our initial research, 149 publications (26.55%) were considered suitable for inclusion in this review. Globally, 2018, 2019, and 2020 had more included papers (n = 21 to 25) than the other years. Of the 149 publications analyzed, four types of food commodities were identified as products of high consumption based on the number of publications in the field such as poultry (39/149), read-to-eat food (22/149), meat, and animal products (20/149). Most studies have shown that E. coli has the highest prevalence followed by Salmonella and Staphylococcus. Only 33 (22.14%) of the 149 publications were based on further molecular characterization of the isolates. Publications analyzed showed that the most prevalent detected genes were tet(A), tet(B), tet(C), tet(K) blaTEM, catA1, catA2, cmlA, blaCTXM and qnrA, qnrB, qnrS, parC, and qepA4. CONCLUSION From these results, antibiotic use in the food areas must be strongly regulated, especially in developing countries, particularly in Africa. This highlights the need to implement suitable and appropriate control strategies to reduce complications and prevent the dissemination of resistant bacteria isolates in foods. One health antimicrobial resistance surveillance system in the region must be a great concern.
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Affiliation(s)
- N S Somda
- Centre National de la Recherche Scientifique et Technologique (CNRST)/ IRSAT / Département Technologie Alimentaire (DTA) / Bobo-Dioulasso, 03 BP 2393 Bobo-Dioulasso 03, Burkina Faso; Laboratoire de Biochimie et d'Immunologie Appliquée (LABIA). UFR en Sciences de la vie et de la terre. Ecole Doctorale Sciences et Technologies. Université Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso.
| | - A Tankoano
- Centre National de la Recherche Scientifique et Technologique (CNRST)/ IRSAT / Département Technologie Alimentaire (DTA) / Bobo-Dioulasso, 03 BP 2393 Bobo-Dioulasso 03, Burkina Faso; Laboratoire de Biochimie et d'Immunologie Appliquée (LABIA). UFR en Sciences de la vie et de la terre. Ecole Doctorale Sciences et Technologies. Université Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso.
| | - A Métuor-Dabiré
- Université de Dédougou, UFR/SAT, Département de Biochimie-Microbiologie, BP 176 Dédougou, Burkina Faso.
| | - D Kaboré
- Centre National de la Recherche Scientifique et Technologique (CNRST)/ IRSAT / Département Technologie Alimentaire (DTA). 03 BP 7047 Ouagadougou 03, Burkina Faso.
| | - J O I Bonkoungou
- Laboratoire de Biologie Moléculaire d'Epidémiologie et de Surveillance des agents Transmissibles par les Aliments (LaBESTA). Université Joseph Ki-Zerbo, UFR/SVT 03 BP 7021 Ouagadougou 03, Burkina Faso.
| | - D S Kpoda
- Université Joseph Ki-Zerbo, Centre Universitaire de Ziniaré, 03 B.P. 7021 Ouagadougou 03, Burkina Faso.
| | - B Sambe-Ba
- Institut Pasteur de Dakar, Pole de Microbiologie, 36, avenue Pasteur, BP 220, Senegal.
| | - Y Dabiré
- Laboratoire de Biochimie, Biotechnologie, Technologie Alimentaire et Nutrition (LABIOTAN), Université Joseph KI-ZERBO, 03 PB 7021 Ouagadougou 03, Burkina Faso.
| | - C K S Saba
- Department of Microbiology, Faculty of Biosciences, University for Development Studies, P. O. Box TL 1882, Tamale, Ghana.
| | | | - H Sawadogo-Lingani
- Centre National de la Recherche Scientifique et Technologique (CNRST)/ IRSAT / Département Technologie Alimentaire (DTA). 03 BP 7047 Ouagadougou 03, Burkina Faso.
| | - A Savadogo
- Laboratoire de Biochimie et d'Immunologie Appliquée (LABIA). UFR en Sciences de la vie et de la terre. Ecole Doctorale Sciences et Technologies. Université Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso.
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Emes E, Faye A, Naylor N, Belay D, Ngom B, Fall AG, Knight G, Dione M. Drivers of Antibiotic Use in Semi-Intensive Poultry Farms: Evidence from a Survey in Senegal. Antibiotics (Basel) 2023; 12:460. [PMID: 36978328 PMCID: PMC10044536 DOI: 10.3390/antibiotics12030460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/02/2023] [Accepted: 02/13/2023] [Indexed: 03/02/2023] Open
Abstract
Antimicrobial resistance (AMR), the capacity of microbial pathogens to survive in the presence of antimicrobials, is considered one of the greatest threats to human health worldwide and is growing rapidly in importance. AMR is thought to be driven in part by the use of antimicrobials (AMU) in livestock production. AMU reduction in agriculture is therefore important, but doing so may endanger farmers' livelihoods and hamper broader food security. Understanding the drivers for farmers' antibiotics use is essential for designing interventions which avoid harming agricultural output and to safeguard farmers' economic security. In this study, we analyse AMUSE survey data from poultry farmers in Senegal to explore the effects of vaccination, attitudes towards AMR, and biosecurity practices on: AMU, animal mortality, and farm productivity. We found that farmers with more "AMR-aware" attitudes may be less likely to use antibiotics in healthy birds. Stronger on-farm biosecurity was associated with less use of antibiotics in healthy birds, and in some specifications was linked to higher broiler productivity. Vaccination and AMU were both higher in farms with a higher disease prevalence, and both factors appeared conducive to higher broiler productivity. Overall, there is evidence that awareness raising and biosecurity improvements could encourage prudent use of antibiotics, and that biosecurity and vaccination could to some extent replace antibiotic use as productivity-enhancing and disease management tools in broiler farms. Finally, issues of farm antimicrobial stewardship must be considered at the structural level, with farm behaviours contingent on interaction with state and private stakeholders.
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Affiliation(s)
- Eve Emes
- Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - Adiouma Faye
- International Livestock Research Institute, Rue 18 Cité Mamelles, Dakar BP 24265, Senegal
| | - Nichola Naylor
- UK Health Security Agency, 61 Colindale Av., London NW9 5EQ, UK
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, Centre for Antibiotic Resistance, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - Dagim Belay
- Department of Food and Resource Economics, University of Copenhagen, Nørregade 10, 1165 Copenhagen, Denmark
| | - Babacar Ngom
- Veterinary Services Directorate, Ministry of Livestock and Animal Products of the Republic of Senegal, 37 Avenue Pasteur, Dakar BP 67, Senegal
| | - Awa Gueye Fall
- Veterinary Services Directorate, Ministry of Livestock and Animal Products of the Republic of Senegal, 37 Avenue Pasteur, Dakar BP 67, Senegal
| | - Gwen Knight
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, Centre for Antibiotic Resistance, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - Michel Dione
- International Livestock Research Institute, Rue 18 Cité Mamelles, Dakar BP 24265, Senegal
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Pankok F, Fuchs F, Loderstädt U, Kaase M, Balczun C, Scheithauer S, Frickmann H, Hagen RM. Molecular Epidemiology of Escherichia coli with Resistance against Third-Generation Cephalosporines Isolated from Deployed German Soldiers-A Retrospective Assessment after Deployments to the African Sahel Region and Other Sites between 2007 and 2016. Microorganisms 2022; 10:microorganisms10122448. [PMID: 36557701 PMCID: PMC9788009 DOI: 10.3390/microorganisms10122448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/06/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022] Open
Abstract
Colonization and infection with bacteria with acquired antibiotic resistance are among the risks for soldiers on international deployments. Enterobacterales with resistance against third-generation cephalosporines are amongst the most frequently imported microorganisms. To contribute to the scarcely available epidemiological knowledge on deployment-associated resistance migration, we assessed the molecular epidemiology of third-generation cephalosporine-resistant Escherichia coli isolated between 2007 and 2016 from German soldiers after deployments, with a particular focus on the African Sahel region. A total of 51 third-generation cephalosporine-resistant E. coli isolated from 51 military returnees from deployment collected during the assessment period between 2007 and 2016 were subjected to short-read next-generation sequencing analysis. Returnees from the Sahel region (Djibouti, Mali, South Sudan, Sudan, Sudan, and Uganda) comprised a proportion of 52.9% (27/51). Repeatedly isolated sequence types according to the Warwick University scheme from returnees from the Sahel region were ST38, ST131, and ST648, confirming previous epidemiological assessments from various sub-Saharan African regions. Locally prevalent resistance genes in isolates from returnees from the Sahel region associated with third-generation resistance were blaCTX-M-15, blaCTX-M-27, blaCTX-M-1, blaTEM-169, blaCTX-M-14, blaCTX-M-99-like, blaCTX-M-125, blaSHV-12, and blaDHA-1, while virulence genes were east1, sat, and tsh in declining order of frequency of occurrence each. In line with phenotypically observed high resistance rates for aminoglycosides and trimethoprim/sulfamethoxazole, multiple associated resistance genes were observed. A similar, slightly more diverse situation was recorded for the other deployment sites. In summary, this assessment provides first next-generation sequencing-based epidemiological data on third-generation cephalosporine-resistant E. coli imported by deployed German soldiers with a particular focus on deployments to the Sahel region, thus serving as a small sentinel. The detected sequence types are well in line with the results from previous epidemiological assessments in sub-Saharan Africa.
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Affiliation(s)
- Frederik Pankok
- Institute for Infection Control and Infectious Diseases, University Medical Center Göttingen, 37075 Göttingen, Germany
- Correspondence: (F.P.); (U.L.)
| | - Frieder Fuchs
- Department of Microbiology and Hospital Hygiene, Bundeswehr Central Hospital Koblenz, 56070 Koblenz, Germany
- Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Medical Faculty and University Hospital of Cologne, 50931 Cologne, Germany
| | - Ulrike Loderstädt
- Institute for Infection Control and Infectious Diseases, University Medical Center Göttingen, 37075 Göttingen, Germany
- Correspondence: (F.P.); (U.L.)
| | - Martin Kaase
- Institute for Infection Control and Infectious Diseases, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Carsten Balczun
- Department of Microbiology and Hospital Hygiene, Bundeswehr Central Hospital Koblenz, 56070 Koblenz, Germany
| | - Simone Scheithauer
- Institute for Infection Control and Infectious Diseases, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Hagen Frickmann
- Department of Microbiology and Hospital Hygiene, Bundeswehr Hospital Hamburg, 20359 Hamburg, Germany
- Institute for Medical Microbiology, Virology and Hospital Hygiene, University Medicine Rostock, 18057 Rostock, Germany
| | - Ralf Matthias Hagen
- Department of Microbiology and Hospital Hygiene, Bundeswehr Central Hospital Koblenz, 56070 Koblenz, Germany
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Vounba P, Loul S, Tamadea LF, Siawaya JFD. Microbiology laboratories involved in disease and antimicrobial resistance surveillance: Strengths and challenges of the central African states. Afr J Lab Med 2022; 11:1570. [PMID: 35402201 PMCID: PMC8991180 DOI: 10.4102/ajlm.v11i1.1570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 01/10/2022] [Indexed: 11/06/2022] Open
Abstract
Laboratory systems have been largely neglected on the margins of health systems in Africa. However, since the 2000s, many African countries have benefited from massive investments to strengthen laboratory capacities through projects fighting priority diseases (HIV/AIDS, tuberculosis, malaria). This review examined the laboratory capacities of the Economic Community of Central African States (ECCAS). Online research using specific terms was carried out. Studies published between 2000 and 2021 on the role of the laboratory in disease and antimicrobial resistance surveillance in the 11 ECCAS countries were considered. The number of human and animal health laboratories meeting international standards was very low in the sub-region. There were only seven International Organization for Standardization (ISO) 15189-accredited human health laboratories, with five in Cameroon and two in Rwanda. There were five high biosafety level (BSL) laboratories (one BSL3 laboratory each in Cameroon, the Central African Republic, Democratic Republic of Congo and the Republic of Congo, and one BSL4 laboratory in Gabon) and three ISO 17025-accredited laboratories in the ECCAS sub-region. Only six countries currently have whole-genome sequencing devices, which is insufficient for a sub-region as large and populous as ECCAS. Yet, a plethora of pathogens, particularly haemorrhagic viruses, are endemic in these countries. The need for laboratory capacity strengthening following a One Health approach is imperative. Since emerging and re-emerging zoonotic infectious diseases are projected to triple in frequency over the next 50 years and given the inextricable link between human and animal health, actors in the two health sectors must collaborate to preserve world health.
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Affiliation(s)
- Passoret Vounba
- Economic Community of Central African States (ECCAS) Commission/Fourth phase of the Regional Disease Surveillance Systems Enhancement Project (REDISSE IV), Libreville, Gabon
| | - Severin Loul
- Economic Community of Central African States (ECCAS) Commission/Fourth phase of the Regional Disease Surveillance Systems Enhancement Project (REDISSE IV), Libreville, Gabon
| | - Ludovic F Tamadea
- Economic Community of Central African States (ECCAS) Commission/Fourth phase of the Regional Disease Surveillance Systems Enhancement Project (REDISSE IV), Libreville, Gabon
| | - Joël F D Siawaya
- Department of Laboratory Services, CHU Mère-Enfant Fondation Jeanne EBORI, Libreville, Gabon.,Regional Integrated Surveillance and Laboratory Network (RISLNET) for Central Africa, Libreville, Gabon
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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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Abdallah R, Kuete Yimagou E, Hadjadj L, Mediannikov O, Ibrahim A, Davoust B, Barciela A, Hernandez-Aguilar RA, Diatta G, Sokhna C, Raoult D, Rolain JM, Baron SA. Population Diversity of Antibiotic Resistant Enterobacterales in Samples From Wildlife Origin in Senegal: Identification of a Multidrug Resistance Transposon Carrying blaCTX–M–15 in Escherichia coli. Front Microbiol 2022; 13:838392. [PMID: 35369484 PMCID: PMC8971907 DOI: 10.3389/fmicb.2022.838392] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/18/2022] [Indexed: 01/08/2023] Open
Abstract
Introduction The role of wildlife in the transmission of antimicrobial resistant (AMR) is suspected but scarcely reported in current studies. Therefore, we studied the dynamics and prevalence of antibiotic-resistant Enterobacterales in antibiotic-limited areas of Senegal. Materials and Methods We collected fecal samples from monkeys and apes (N = 226) and non-fecal environmental samples (N = 113) from Senegal in 2015 and 2019. We grew the samples on selective media, subsequently isolated AMR Enterobacterales, and then sequenced their genomes. Results We isolated 72 different Enterobacterales among which we obtained a resistance rate of 65% for colistin (N = 47/72) and 29% for third generation-cephalosporin (C3G) (29%, N = 21/72). Interestingly, almost 46% of our isolates, among Enterobacter sp., Citrobacter cronae and Klebsiella aerogenes, belong to 34 new STs. Moreover, the genes blaCTX–M–15, blaTEM1B, sul2, dfrA14, qnrs, aph(3′′), aph(6), tetA, and tetR harbored within a transposon on the IncY plasmid of ST224 Escherichia coli were transferred and inserted into a ST10 E. coli phage coding region. Conclusion Wildlife constitutes a rich, unexplored reservoir of natural microbial diversity, AMR genes and international resistant clones pathogenic in humans. The presence of a transposon that carries AMR genes is intriguing since no antibiotics are used in the non-human primates we studied.
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Affiliation(s)
- Rim Abdallah
- IRD, APHM, MEPHI, Faculté de Médecine et de Pharmacie, Aix Marseille University, Marseille, France
- IHU Méditerranée Infection, Marseille, France
| | - Edmond Kuete Yimagou
- IRD, APHM, MEPHI, Faculté de Médecine et de Pharmacie, Aix Marseille University, Marseille, France
- IHU Méditerranée Infection, Marseille, France
| | - Linda Hadjadj
- IRD, APHM, MEPHI, Faculté de Médecine et de Pharmacie, Aix Marseille University, Marseille, France
- IHU Méditerranée Infection, Marseille, France
| | - Oleg Mediannikov
- IRD, APHM, MEPHI, Faculté de Médecine et de Pharmacie, Aix Marseille University, Marseille, France
- IHU Méditerranée Infection, Marseille, France
| | - Ahmad Ibrahim
- IRD, APHM, MEPHI, Faculté de Médecine et de Pharmacie, Aix Marseille University, Marseille, France
- IHU Méditerranée Infection, Marseille, France
| | - Bernard Davoust
- IRD, APHM, MEPHI, Faculté de Médecine et de Pharmacie, Aix Marseille University, Marseille, France
- IHU Méditerranée Infection, Marseille, France
| | - Amanda Barciela
- Dindefelo Biological Station, Jane Goodall Institute Spain and Senegal, Kedougou, Senegal
| | - R. Adriana Hernandez-Aguilar
- Dindefelo Biological Station, Jane Goodall Institute Spain and Senegal, Kedougou, Senegal
- Department of Social Psychology and Quantitative Psychology, Faculty of Psychology, Serra Hunter Programme, University of Barcelona, Barcelona, Spain
| | - Georges Diatta
- VITROME IRD 257, Campus International de Recherche IRD-UCAD de Hann, Dakar, Senegal
| | - Cheikh Sokhna
- IHU Méditerranée Infection, Marseille, France
- VITROME IRD 257, Campus International de Recherche IRD-UCAD de Hann, Dakar, Senegal
| | - Didier Raoult
- IRD, APHM, MEPHI, Faculté de Médecine et de Pharmacie, Aix Marseille University, Marseille, France
- IHU Méditerranée Infection, Marseille, France
| | - Jean-Marc Rolain
- IRD, APHM, MEPHI, Faculté de Médecine et de Pharmacie, Aix Marseille University, Marseille, France
- IHU Méditerranée Infection, Marseille, France
| | - Sophie Alexandra Baron
- IRD, APHM, MEPHI, Faculté de Médecine et de Pharmacie, Aix Marseille University, Marseille, France
- IHU Méditerranée Infection, Marseille, France
- *Correspondence: Sophie Alexandra Baron,
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Antibiotic resistance, virulence, and phylogenetic analysis of Escherichia coli strains isolated from free-living birds in human habitats. PLoS One 2022; 17:e0262236. [PMID: 35020771 PMCID: PMC8754294 DOI: 10.1371/journal.pone.0262236] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 12/20/2021] [Indexed: 12/11/2022] Open
Abstract
Wild birds can be colonized by bacteria, which are often resistant to antibiotics and have various virulence profiles. The aim of this study was to analyze antibiotic resistance mechanisms and virulence profiles in relation to the phylogenetic group of E. coli strains that were isolated from the GI tract of wildfowl. Out of 241 faecal samples, presence of E. coli resistant to a cephalosporin (ESBL/AmpC) was estimated for 33 isolates (13,7%). Based on the analysis of the coexistence of 4 genes encoding ESBLs/AmpC (blaCTX-M, blaTEM,blaSHV, blaAmpC) and class 1 and 2 integrons genes (intI1, intI2) a subset of two resistance profiles was observed among the investigated E. coli isolates carrying blaAmpC, blaSHV, and blaCTX-M, blaTEM, class 1 and 2 integrons, respectively. The E. coli isolates were categorized into 4 phylogenetic groups A (39.4%), B2 (24.25%), D (24.25%) and B1 (12.1%). The pathogenic B2 and D groups were mainly typical for the Laridae family. Among the 28 virulence factors (Vfs) detected in pathogenic phylogenetic groups B2 and D, 7 were exclusively found in those groups (sfa, vat, tosA, tosB, hly, usp, cnf), while 4 VFs (fecA, fyuA, irp2, kspMTII) showed a statistically significant association (P≤0.05) with phylogroups A and B1. Our results indicated that strains belonging to commensal phylogroups A/B1 possess extensive iron acquisition systems (93,9%) and autotransporters (60,6%), typical for pathogens, hence we suggest that these strains evolve towards higher levels of virulence. This study, which is a point assessment of the virulence and drug resistance potential of wild birds, confirms the importance of taking wild birds as a reservoir of strains that pose a growing threat to humans. The E. coli analyzed in our study derive from different phylogenetic groups and possess an arsenal of antibiotic resistance genes and virulence factors that contribute to their ability to cause diseases.
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Kiiti RW, Komba EV, Msoffe PL, Mshana SE, Rweyemamu M, Matee MIN. Antimicrobial Resistance Profiles of Escherichia coli Isolated from Broiler and Layer Chickens in Arusha and Mwanza, Tanzania. Int J Microbiol 2021; 2021:6759046. [PMID: 34721584 PMCID: PMC8556130 DOI: 10.1155/2021/6759046] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/27/2021] [Indexed: 12/02/2022] Open
Abstract
The rise in the spread of antibiotic-resistant pathogens such as Escherichia coli is one of the very important dynamics off-putting treatment and prophylaxis possibilities, hence posing a threat to the modern human medicine, veterinary medicine, and food safety. Therefore, the aim of this study was to determine antimicrobial resistance profiles in E. coli isolates obtained from broiler and layer chickens in Mwanza and Arusha regions in Tanzania. A cross-sectional study was carried out from February to March, 2021, in 402 poultry farms in Mwanza (201) and Arusha (201) regions in Tanzania. All samples that tested positive for E. coli were confirmed using MALDI-TOF MS, and two hundred and four (204) E. coli isolates were randomly chosen and subjected to antimicrobial susceptibility testing by disc diffusion method. Data were entered in Microsoft Excel® and analyzed using SPSS version 20. Isolates were tested against seven antimicrobial agents belonging to seven classes of antimicrobials. All the tested isolates (n = 204) were resistant to at least one antimicrobial agent. Overall, the highest resistance was observed in ampicillin (100%), whereas the lowest resistance was recorded for gentamicin (10.3%). Majority of the isolates (86.76%) were multidrug resistant. Antimicrobial resistance of E. coli to four classes of antimicrobial agents was the highest in this study (31.1%). Six of the 177 tested isolates (2.9%) were resistant to the seven classes of antimicrobial agents. 21 of the 204 (10.29%) isolates were ESBL producers where 21/21 (100%) isolates expressed bla TEM genes and only two isolates expressed (2/21) bla CTX-M gene. The isolates obtained in this study displayed high resistance to commonly used antimicrobial agents in veterinary and human medicine. This implies that there is existence of practices that accelerate antimicrobial resistance in the production of the sampled birds and therefore integration of appropriate use of antimicrobial agents and other measures that curb the spread of resistant genes is necessary.
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Affiliation(s)
- Ruth W. Kiiti
- Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, P.O. Box 3021, Morogoro, Tanzania
| | - Erick V. Komba
- Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, P.O. Box 3021, Morogoro, Tanzania
| | - Peter L. Msoffe
- Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, P.O. Box 3021, Morogoro, Tanzania
| | - Stephen E. Mshana
- Catholic University of Health and Allied Sciences, P.O. Box 1464, Mwanza 33109, Tanzania
| | - Mark Rweyemamu
- SACIDS Africa Centre of Excellence for Infectious Diseases, Sokoine University of Agriculture, P.O. Box 3297, Morogoro 67125, Tanzania
| | - Mecky I. N. Matee
- SACIDS Africa Centre of Excellence for Infectious Diseases, Sokoine University of Agriculture, P.O. Box 3297, Morogoro 67125, Tanzania
- Muhimbili University of Health and Allied Sciences, P.O. Box 65001, Dar es Salaam 11103, Tanzania
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Cardozo MV, Liakopoulos A, Brouwer M, Kant A, Pizauro LJL, Borzi MM, Mevius D, de Ávila FA. Occurrence and Molecular Characteristics of Extended-Spectrum Beta-Lactamase-Producing Enterobacterales Recovered From Chicken, Chicken Meat, and Human Infections in Sao Paulo State, Brazil. Front Microbiol 2021; 12:628738. [PMID: 34239503 PMCID: PMC8259509 DOI: 10.3389/fmicb.2021.628738] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/29/2021] [Indexed: 11/13/2022] Open
Abstract
This study aimed to investigate the phylogenetic diversity and epidemiology of extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae from chicken, chicken meat, and human clinical isolates in Sao Paolo, Brazil, and characterize their respective ESBL-encoding plasmids. Three hundred samples from chicken cloaca, chicken meat, and clinical isolates were phenotypically and genotypically assessed for ESBL resistance. Isolates were identified by MALDI TOF-MS and further characterized by MLST analysis and phylogenetic grouping. ESBL genes were characterized and their location was determined by I-Ceu-I-PFGE and Southern blot, conjugation, transformation, and PCR-based replicon typing experiments. Thirty-seven ESBL-producing isolates (28 E. coli and 9 K. pneumoniae) that were positive for the bla CTX-M-1 or bla CTX-M-2 gene groups were obtained. Two isolates were negative in the transformation assay, and the chromosomal location of the genes was deduced by Southern blot. The bla CTX-M genes identified were carried on plasmid replicon-types X1, HI2, N, FII-variants, I1 and R. The E. coli isolates belonged to nine sequence types, while the K. pneumoniae isolates belonged to four sequence types. The E. coli isolates belonged to phylotype classification groups A, B1, D, and F. This study demonstrated that isolates from cloacal swabs, chicken meat, and human feces had genetic diversity, with a high frequency of bla CTX-M-15 among chickens, chicken meat, and human feces. Thus, this reinforces the hypothesis that chickens, as well as their by-products, could be an important source of transmission for ESBL-producing pathogens to humans in South America.
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Affiliation(s)
- Marita Vedovelli Cardozo
- Department of Veterinary Pathology, Faculty of Agricultural and Veterinary Sciences, São Paulo State University (Unesp), Jaboticabal, Brazil
| | - Apostolos Liakopoulos
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Wageningen University and Research, Lelystad, Netherlands
| | - Michael Brouwer
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Wageningen University and Research, Lelystad, Netherlands
| | - Arie Kant
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Wageningen University and Research, Lelystad, Netherlands
| | - Lucas José Luduvério Pizauro
- Department of Tecnology, Faculty of Agricultural and Veterinary Sciences, São Paulo State University (Unesp), Jaboticabal, Brazil
| | - Mariana Monezi Borzi
- Department of Veterinary Pathology, Faculty of Agricultural and Veterinary Sciences, São Paulo State University (Unesp), Jaboticabal, Brazil
| | - Dik Mevius
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Wageningen University and Research, Lelystad, Netherlands
| | - Fernando Antonio de Ávila
- Department of Veterinary Pathology, Faculty of Agricultural and Veterinary Sciences, São Paulo State University (Unesp), Jaboticabal, Brazil
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Assoumy MA, Bedekelabou AP, Teko-Agbo A, Ossebi W, Akoda K, Nimbona F, Zeba SH, Zobo AA, Tiecoura RCT, Kallo V, Dagnogo K, Bada-Alambédji R. Antibiotic resistance of Escherichia coli and Salmonella spp. strains isolated from healthy poultry farms in the districts of Abidjan and Agnibilékrou (Côte d'Ivoire). Vet World 2021; 14:1020-1027. [PMID: 34083955 PMCID: PMC8167535 DOI: 10.14202/vetworld.2021.1020-1027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 03/03/2021] [Indexed: 11/16/2022] Open
Abstract
Background and Aim Antimicrobial resistance (AMR) is a serious challenge to animal and human health worldwide. Therefore, this study aims to determine levels and patterns of AMR of Escherichia coli and Salmonella spp. strains isolated from poultry farms in Côte d'Ivoire. Materials and Methods A cross-sectional study was conducted in two districts of Côte d'Ivoire with high poultry production: Abidjan and Agnibilékrou. A total of 231 fecal samples were collected in 124 poultry farms in both districts. Enterobacteria were isolated and tested for susceptibility to 14 antimicrobial agents using the disk-diffusion method. Results A total of 212 E. coli and 36 Salmonella strains were isolated. In Abidjan, 139 collected samples generated 101 E. coli and 23 Salmonella strains, whereas in Agnibilékrou, 92 collected samples generated 111 E. coli and 13 Salmonella strains. Variable resistance levels were recorded for the antibiotics tested. The resistance prevalence of E. coli and Salmonella, respectively, was high: Doxycycline (98%/94%), sulfonamide (84%/86%), trimethoprim-sulfamethoxazole (80%/41%), and streptomycin (71%/52%). Average resistance rates were recorded for flumequine (38%/66%), ampicillin (49%/33%), amoxicillin (25%/44%), colistin (26%/2%), chloramphenicol (21%/2%), and gentamicin (4%/47%). The antibiotics least affected by resistance were cefuroxime (4%/5%), ceftriaxone (2%/0.00%), and nitrofurantoin (1%/0.00%). Conclusion In this study, it was observed that resistance to important antibiotics is emerging in poultry production in Côte d'Ivoire. Policies promoting the rational use of antibiotics should be implemented to manage antibiotic resistance in animal production.
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Affiliation(s)
- Moumouni A Assoumy
- Pharmacy-toxicology service, Department of Public Health and Environment, Inter-State School of Veterinary Sciences and Medicine (EISMV), BP 5077 Dakar, Senegal
| | - André P Bedekelabou
- Microbiology, Immunology and Infectious Pathology Service, Department of Public Health and Environment, EISMV of Dakar, Senegal
| | - Assiongbon Teko-Agbo
- Pharmacy-toxicology service, Department of Public Health and Environment, Inter-State School of Veterinary Sciences and Medicine (EISMV), BP 5077 Dakar, Senegal
| | - Walter Ossebi
- Rural Economy and Management Service, Department of Biological Sciences and Animal Productions, EISMV of Dakar, Senegal
| | - Komlan Akoda
- Pharmacy-toxicology service, Department of Public Health and Environment, Inter-State School of Veterinary Sciences and Medicine (EISMV), BP 5077 Dakar, Senegal
| | - Félix Nimbona
- Microbiology, Immunology and Infectious Pathology Service, Department of Public Health and Environment, EISMV of Dakar, Senegal
| | - Stanislas H Zeba
- Microbiology, Immunology and Infectious Pathology Service, Department of Public Health and Environment, EISMV of Dakar, Senegal
| | - Anicet A Zobo
- Microbiology, Immunology and Infectious Pathology Service, Department of Public Health and Environment, EISMV of Dakar, Senegal
| | - Raoul C T Tiecoura
- Pharmacy-toxicology service, Department of Public Health and Environment, Inter-State School of Veterinary Sciences and Medicine (EISMV), BP 5077 Dakar, Senegal.,Directorate of Veterinary Services, Abidjan, Côte d'Ivoire
| | - Vessaly Kallo
- Animal Health and Veterinary Public Hygiene Improvement Project (PASA-HPV), Abidjan, Côte d'Ivoire
| | - Komissiri Dagnogo
- Animal Health and Veterinary Public Hygiene Improvement Project (PASA-HPV), Abidjan, Côte d'Ivoire
| | - Rianatou Bada-Alambédji
- Microbiology, Immunology and Infectious Pathology Service, Department of Public Health and Environment, EISMV of Dakar, Senegal
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Ashwath P, Sannejal AD. A quest to the therapeutic arsenal: Novel strategies to combat multidrug-resistant bacteria. Curr Gene Ther 2021; 22:79-88. [PMID: 33874870 DOI: 10.2174/1566523221666210419084836] [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: 10/30/2020] [Revised: 02/24/2021] [Accepted: 03/09/2021] [Indexed: 11/22/2022]
Abstract
The increasing resistance of the disease-causing pathogens to antimicrobial drugs is a public health concern and a socio-economic burden. The emergence of multi-drug resistant strains has made it harder to treat and combat infectious diseases with available conventional antibiotics. There are currently few effective therapeutic regimens for the successful prevention of infections caused by drug-resistant microbes. The various alternative strategies used in the recent past to decrease and limit antibiotic resistance in pathogens include bacteriophages, vaccines, anti-biofilm peptides, and antimicrobial peptides. However, in this review, we focus on the novel and robust molecular approach of antisense RNA (asRNA) technology and the clustered regulatory interspaced short palindromic repeat (CRISPR)-based antibiotic therapy, which can be exploited to selectively eradicate the drug-resistant bacterial strain in a sequence-specific fashion establishing opportunities in the treatment of multi-drug resistant related infections.
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Affiliation(s)
- Priyanka Ashwath
- Nitte (Deemed to be University), Nitte University Centre for Science Education & Research (NUCSER), Mangaluru. India
| | - Akhila Dharnappa Sannejal
- Nitte (Deemed to be University), Nitte University Centre for Science Education & Research (NUCSER), Mangaluru. India
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Longitudinal monitoring of multidrug resistance in Escherichia coli on broiler chicken fattening farms in Shandong, China. Poult Sci 2020; 100:100887. [PMID: 33516478 PMCID: PMC7936140 DOI: 10.1016/j.psj.2020.11.064] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 11/21/2020] [Accepted: 11/24/2020] [Indexed: 12/13/2022] Open
Abstract
The extensive use of antibiotics has, in recent years, caused antimicrobial resistance and multidrug resistance in Escherichia coli to gradually develop into a worldwide problem. These resistant E. coli could be transmitted to humans through animal products and animal feces in the environment, thereby creating a problem for bacterial treatment for humans and animals and resulting in a public health issue. Monitoring the resistance of E. coli throughout the broiler fattening period is therefore of great significance for both the poultry industry and public health. In this longitudinal study, samples were taken from 6 conventional broiler fattening farms in Shandong Province, China, at 3 different times within 1 fattening period. The overall isolation rate of E. coli was 53.04% (375/707). Antibiotic resistance was very common in the E. coli isolated from these farms, and differed for different antibiotics, with ampicillin having the highest rate (92.86%) and cefoxitin the lowest (10.12%). Multidrug resistance was as high as 91.07%. More importantly, both the resistance rate of E. coli to the different drugs and the detection rate of drug resistance genes increased over time. The mobile colistin resistance (mcr-1) gene was detected in 24.40% of the strains, and these strains often carried other drug resistance genes, such as those conferring aminoglycoside, β-lactamase, tetracycline, and sulfonamide resistance. Antimicrobial resistance and drug resistance genes in E. coli were least common in the early fattening stage. The individual detection rates of sul1, sul3, aacC4, aphA3, and mcr-1 were significantly lower (P < 0.05) for the early fattening stage than for the middle and late stages. The rational use of antibiotics, in conjunction with the improvement of the breeding environment during the entire broiler fattening cycle, will be helpful in the development of the poultry industry and the protection of public health.
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Dafale NA, Srivastava S, Purohit HJ. Zoonosis: An Emerging Link to Antibiotic Resistance Under "One Health Approach". Indian J Microbiol 2020; 60:139-152. [PMID: 32255846 DOI: 10.1007/s12088-020-00860-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 02/27/2020] [Indexed: 02/07/2023] Open
Abstract
Current scenario in communicable diseases has generated new era that identifies the "One health" approach to understand the sharing and management of etiological agents with its impact on ecosystem. Under this context the relevance of zoonotic diseases generates major concern. The indiscriminate and higher use of antibiotics in animal husbandry creates substantial pressure on the gut microbiome for development of resistance due to shorter generation time and high density. Thus, gut works as a bioreactor for the breeding of ARBs in this scenario and are continuously released in different niches. These ARBs transfer resistance genes among native flora through horizontal gene transfer events, vectors and quorum sensing. About 60% of infectious diseases in human are caused by zoonotic pathogens have potential to carry ARGs which could be transmitted to humans. The well documented zoonotic diseases are anthrax cause by Bacillus anthracis, bovine tuberculosis by Mycobacterium tuberculosis, brucellosis by Brucella abortus, and hemorrhagic colitis by Escherichia coli. Similarly, most of the antibiotics are not completely metabolized and released in unmetabolized forms which enters the food chain and affect various ecological niches through bioaccumulation. The persistence period of antibiotics ranges from < 1 to 3466 days in environment. The consequences of misusing the antibiotic in livestock and their fate in various ecological niches have been discussed in this review. Further the light sheds on antibiotics persistence and it biodegradation through different abiotic and biotic approaches in environment. The knowledge on personnel hygiene and strong surveillance system for zoonotic disease including ARBs transmission, prevention and control measures should be established to regulate the spread of AMR in the environment and subsequently to the human being through a food web.
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Affiliation(s)
- Nishant A Dafale
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440 020 India
| | - Shweta Srivastava
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440 020 India
| | - Hemant J Purohit
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440 020 India
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Effect of Cessation of Ceftiofur and Substitution with Lincomycin-Spectinomycin on Extended-Spectrum-β-Lactamase/AmpC Genes and Multidrug Resistance in Escherichia coli from a Canadian Broiler Production Pyramid. Appl Environ Microbiol 2019; 85:AEM.00037-19. [PMID: 31028030 DOI: 10.1128/aem.00037-19] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Accepted: 04/23/2019] [Indexed: 11/20/2022] Open
Abstract
Ceftiofur, a third-generation cephalosporin antimicrobial, was used in Canadian hatcheries for many years to prevent early mortality in chicks, leading to a high prevalence of cephalosporin resistance in Escherichia coli in chickens. Preventive use of ceftiofur in hatcheries ceased in 2014. We examined the effect of ceftiofur cessation (n = 40 flocks with ceftiofur and n = 28 flocks without antimicrobial at hatchery) and its replacement with an antimicrobial combination, lincomycin-spectinomycin (n = 32), at the hatchery on the proportion of samples with E. coli positive for extended-spectrum-β-lactamase (ESBL) and AmpC β-lactamase-related genes, and on the multidrug resistance profiles of ESBL/AmpC-positive E. coli in broilers and their associated breeders (n = 46 samples), at 1 year postcessation. For indicator E. coli from nonenriched media, a significant decrease postcessation in the proportion of samples harboring E. coli isolates positive for bla CMY-2 and/or bla CTX-M was observed. In contrast, following enrichment in medium containing ceftriaxone (1 mg/liter) to facilitate recovery of ESBL/AmpC β-lactamase-producing E. coli colonies, both pre- and postcessation, 99% of the samples harbored E. coli positive for bla CMY-2 or bla CTX-M Among the 15 tested antimicrobial agents, flocks receiving lincomycin-spectinomycin after cessation of ceftiofur showed a significantly greater nonsusceptibility to aminoglycosides, folate inhibitors, phenicols, and tetracyclines and a greater proportion of possible extensively drug-resistant E. coli than those receiving ceftiofur or no antimicrobial at hatchery. This study clearly demonstrates an initial decrease in ESBL/AmpC-positive E. coli following the cessation of ceftiofur in the hatchery but an increase in antimicrobial non-β-lactam resistance of ESBL/AmpC-positive E. coli following replacement with lincomycin-spectinomycin.IMPORTANCE Antimicrobial resistance is a global problem. The antimicrobial ceftiofur has been used worldwide for disease prevention in poultry production, resulting in a greatly increased resistance to this antimicrobial important in poultry and human medicine. Our study examined the impact of ceftiofur cessation and its replacement with the antimicrobial combination lincomycin-spectinomycin, a common practice in the industry. Our study demonstrated a decrease in ceftiofur resistance after the cessation of ceftiofur use, although the resistance genes remain ubiquitous in all phases of poultry production, showing that poultry remains a reservoir for ceftiofur resistance and requiring continued vigilance. We also observed a decrease in multidrug resistance involving different antimicrobial classes after cessation of ceftiofur but an increase following use of lincomycin-spectinomycin, indicating that this antimicrobial use should be questioned. Reduced resistance to ceftiofur in poultry may translate to better treatment efficacy, decreased morbidity/mortality, and enhanced food safety for humans.
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21
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Abrar S, Ain NU, Liaqat H, Hussain S, Rasheed F, Riaz S. Distribution of bla CTX - M , bla TEM , bla SHV and bla OXA genes in Extended-spectrum- β-lactamase-producing Clinical isolates: A three-year multi-center study from Lahore, Pakistan. Antimicrob Resist Infect Control 2019; 8:80. [PMID: 31139363 PMCID: PMC6530043 DOI: 10.1186/s13756-019-0536-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/09/2019] [Indexed: 01/05/2023] Open
Abstract
Background Frequency of extended-spectrum-β-lactamase-producing clinical isolates is increasing worldwide. This is a multi-center study which was aimed to check the frequency of third-generation cephalosporin resistance and distribution of the key genetic determinants of Extended-spectrum-β-lactamase-producing Clinical isolates in Pakistan. Methods A total of 2372 samples were processed in three tertiary care hospitals and one diagnostic research center of Lahore, Pakistan during Aug-2014 to Sep-2017. Analytical profile index (API 20-E) was used for biochemical characterization of isolates. Antibiotic susceptibility testing (AST) and third generation cephalosporin resistant (3GC-R) isolates were subjected to: double disc synergism test (DDST), combination disc test (CDST) and epsilometric test (E-test) for confirmation of ESBL-production. PCR amplification of isolates with plasmid and genomic DNA was performed. Amplicon sequences were checked for gene-variants and statistical analyses were performed to check the significance of data. Results A total of 497/995 (50%) isolates including Escherichia coli 65% (n = 321), Klebsiella spp. 25% (n = 124) and Pseudomonas. 5% (n = 24), Enterobacter spp. 4% (n = 20) and Acinetobacter spp. 2% (n = 8) were screened as third generation cephalosporin resistant (3GC-R). Urine 56% (n = 278) followed by pus 20% (n = 99) and wound swab 6% (n = 29) were frequent sources. Incidence of ESBL-producers detected by combination disc test was 79% (n = 392). PCR revealed blaCTX − M (76%) gene followed by blaOXA (52%), blaTEM (28%) and blaSHV (21%) were most prevalent among ESBL-producers detected by CDST. blaCTX − M − 1(65%), blaOXA (78%) and blaTEM (57%) genes were carried on plasmids. Amplicon sequencing revealed blaCTX − M − 15 (75%), blaOXA − 1 (49%) and blaTEM − 1B (34%) and 21 (n = 28) isolates carried three genes in them. Conclusion Prevalence of ESBL-producing isolates has increased 1.13 folds during study years. Isolates had high prevalence of ESBL-encoding blaCTXM − 15 gene and narrow spectrum blaOXA − 1 and blaTEM − 1B were also prevalent.
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Affiliation(s)
- Samyyia Abrar
- 1Department of Microbiology and Molecular genetics, University of the Punjab, Lahore, Pakistan
| | - Noor Ul Ain
- 1Department of Microbiology and Molecular genetics, University of the Punjab, Lahore, Pakistan
| | - Huma Liaqat
- 1Department of Microbiology and Molecular genetics, University of the Punjab, Lahore, Pakistan
| | - Shahida Hussain
- 1Department of Microbiology and Molecular genetics, University of the Punjab, Lahore, Pakistan
| | - Farhan Rasheed
- Allama Iqbal Medical College, Jinnah Hospital Lahore, Lahore, Pakistan
| | - Saba Riaz
- 1Department of Microbiology and Molecular genetics, University of the Punjab, Lahore, Pakistan.,Citilab and Research Center, Lahore, Pakistan
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