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Abdel-Raheem SM, Khodier SM, Almathen F, Hanafy AST, Abbas SM, Al-Shami SA, Al-Sultan SI, Alfifi A, El-Tarabili RM. Dissemination, virulence characteristic, antibiotic resistance determinants of emerging linezolid and vancomycin-resistant Enterococcus spp. in fish and crustacean. Int J Food Microbiol 2024; 418:110711. [PMID: 38677237 DOI: 10.1016/j.ijfoodmicro.2024.110711] [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: 02/13/2024] [Revised: 04/13/2024] [Accepted: 04/17/2024] [Indexed: 04/29/2024]
Abstract
Enterococci are emerging nosocomial pathogens. Their widespread distribution causes them to be food contaminants. Furthermore, Enterococci can colonize various ecological niches and diffuse into the food chain via contaminated animals and foods because of their remarkable tolerance to unfavorable environmental circumstances. Due to their potential dissemination to humans, antimicrobial-resistant Enterococci in fish are a worldwide health issue. This study characterized AMR, ARGs, VAGs, gelatinase activity, and biofilm formation in Enterococcus spp. recovered from fish and seafood and evaluated potential correlations. 54 Enterococcus spp. strains(32.73 %)were isolated from 165 samples (75 Oreochromis niloticus, 30 Argyrosomus regius, and 60 Shrimp), comprising 30 Enterococcus faecalis (55.6 %) and 24 Enterococcus faecium (44.4 %) with total 32.73 % (54/165), The maximum prevalence rate of Enterococcus spp. was observed in Nile tilapia (34/54; 63 %), followed by shrimp (14/54; 25.9 %) and Argyrosomus regius (6/54; 11.1 %). The maximum prevalence rate of E. faecalis was observed in Nile tilapia (22/30; 73.3 %), followed by shrimp (8/30; 26.7 %) with significant differences. The prevalence rate of E. faecium was observed in Nile tilapia (12/24; 50 %), followed by shrimp (6/24,25 %). E. faecium is only isolated from Argyrosomus regius (6/24,25 %). Isolates exhibited high resistance against both tetracycline (90.7 %) and erythromycin(88.9 %), followed by gentamycin (77.8 %), ciprofloxacin (74.1 %), levofloxacin (72.2 %), penicillin (44.4 %), vancomycin (37 %), and linezolid (20.4 %). 50 strains (92.6 %) exhibited resistance to more than two antibiotics, 5 strains (10 %) were XDR, and the remaining 45 strains (90 %) were classified as MDR. 92.6 % of the isolates had MARindices >0.2, indicating they originated in settings with a high risk of contamination. Additionally, ten ARGs were identified, with tet(M) 92.6 %, followed by erm(B) (88.9 %), aac(6')-Ie-aph(2″)-Ia(77.8 %), tet(K) (75.9 %), gyrA (74.1 %), blaZ (48.1 %), vanA (37 %), vanB (31.5 %), optrA (20.4 %), and catA(3.7 %). Biofilm formation and gelatinase activity were observed in 85.2 %, and 61.1 % of the isolates, respectively. A total of 11 VAGs were detected, with gelE as the most prevalent (83.3 %) followed by agg(79.6 %), pil (74.1 %), both sprE and asa1 (72.2 %), hyl (70.4 %), eps(68.5 %), EF3314 (57.4 %), ace (50 %), and cylA (35.2 %) with no detection of cylB. In conclusion, the emergence of linezolid-resistant -vancomycin-resistant enterococci recovered from Egyptian fish and shrimp, suggests that fish and seafood might participate a fundamental part in the emergence of antimicrobial resistance among humans.
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Affiliation(s)
- Sherief M Abdel-Raheem
- Department of Public Health, College of Veterinary Medicine, King Faisal University, P.O. Box 400, Al-Hofuf 31982, Al-Ahsa, Saudi Arabia; Department of Animal Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Assiut University, 71526 Assiut, Egypt.
| | - Sherin M Khodier
- Central lab for marine fish diagnosing and treatment and measuring fish and water quality, Marine Aquaculture Development (MADEӀӀ), Egypt
| | - Faisal Almathen
- Department of Public Health, College of Veterinary Medicine, King Faisal University, P.O. Box 400, Al-Hofuf 31982, Al-Ahsa, Saudi Arabia; Camel Research Center, King Faisal University, P.O. Box 400, Al-Hofuf 31982, Al-Ahsa, Saudi Arabia.
| | - Al-Shaimaa T Hanafy
- Department of Bacteriology, Animal Health Research Institute, Portsaid laboratory Branch, Egypt
| | - Sarah M Abbas
- Department of Bacteriology, Animal Health Research Institute, Portsaid laboratory Branch, Egypt
| | - Salah Abdulaziz Al-Shami
- Department of Public Health, College of Veterinary Medicine, King Faisal University, P.O. Box 400, Al-Hofuf 31982, Al-Ahsa, Saudi Arabia.
| | - Saad Ibrahim Al-Sultan
- Department of Public Health, College of Veterinary Medicine, King Faisal University, P.O. Box 400, Al-Hofuf 31982, Al-Ahsa, Saudi Arabia.
| | - Ahmed Alfifi
- Department of Public Health, College of Veterinary Medicine, King Faisal University, P.O. Box 400, Al-Hofuf 31982, Al-Ahsa, Saudi Arabia.
| | - Reham M El-Tarabili
- Department of Bacteriology, Immunology and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt.
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Monteiro Marques J, Coelho M, Santana AR, Pinto D, Semedo-Lemsaddek T. Dissemination of Enterococcal Genetic Lineages: A One Health Perspective. Antibiotics (Basel) 2023; 12:1140. [PMID: 37508236 PMCID: PMC10376465 DOI: 10.3390/antibiotics12071140] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/22/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023] Open
Abstract
Enterococcus spp. are commensals of the gastrointestinal tracts of humans and animals and colonize a variety of niches such as water, soil, and food. Over the last three decades, enterococci have evolved as opportunistic pathogens, being considered ESKAPE pathogens responsible for hospital-associated infections. Enterococci's ubiquitous nature, excellent adaptative capacity, and ability to acquire virulence and resistance genes make them excellent sentinel proxies for assessing the presence/spread of pathogenic and virulent clones and hazardous determinants across settings of the human-animal-environment triad, allowing for a more comprehensive analysis of the One Health continuum. This review provides an overview of enterococcal fitness and pathogenic traits; the most common clonal complexes identified in clinical, veterinary, food, and environmental sources; as well as the dissemination of pathogenic genomic traits (virulome, resistome, and mobilome) found in high-risk clones worldwide, across the One Health continuum.
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Affiliation(s)
- Joana Monteiro Marques
- Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Av. da Universidade Técnica de Lisboa, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Mariana Coelho
- Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Av. da Universidade Técnica de Lisboa, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Andressa Rodrigues Santana
- Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Av. da Universidade Técnica de Lisboa, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Daniel Pinto
- Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Av. da Universidade Técnica de Lisboa, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Teresa Semedo-Lemsaddek
- Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Av. da Universidade Técnica de Lisboa, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
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3
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Prevalence of antibiotic resistance genes among Enterococcus strains isolated from the clinical specimens. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Salgueiro V, Manageiro V, Bandarra NM, Reis L, Ferreira E, Caniça M. Bacterial Diversity and Antibiotic Susceptibility of Sparus aurata from Aquaculture. Microorganisms 2020; 8:E1343. [PMID: 32887439 PMCID: PMC7564983 DOI: 10.3390/microorganisms8091343] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 02/02/2023] Open
Abstract
In a world where the population continues to increase and the volume of fishing catches stagnates or even falls, the aquaculture sector has great growth potential. This study aimed to contribute to the depth of knowledge of the diversity of bacterial species found in Sparus aurata collected from a fish farm and to understand which profiles of diminished susceptibility to antibiotics would be found in these bacteria that might be disseminated in the environment. One hundred thirty-six bacterial strains were recovered from the S. aurata samples. These strains belonged to Bacillaceae, Bacillales Family XII. Incertae Sedis, Comamonadaceae, Enterobacteriaceae, Enterococcaceae, Erwiniaceae, Micrococcaceae, Pseudomonadaceae and Staphylococcaceae families. Enterobacter sp. was more frequently found in gills, intestine and skin groups than in muscle groups (p ≤ 0.01). Antibiotic susceptibility tests found that non-susceptibility to phenicols was significantly higher in gills, intestine and skin samples (45%) than in muscle samples (24%) (p ≤ 0.01) and was the most frequently found non-susceptibility in both groups of samples. The group of Enterobacteriaceae from muscles presented less decreased susceptibility to florfenicol (44%) than in the group of gills, intestine and skin samples (76%). We found decreased susceptibilities to β-lactams and glycopeptides in the Bacillaceae family, to quinolones and mupirocin in the Staphylococcaceae family, and mostly to β-lactams, phenicols and quinolones in the Enterobacteriaceae and Pseudomonadaceae families. Seven Enterobacter spp. and five Pseudomonas spp. strains showed non-susceptibility to ertapenem and meropenem, respectively, which is of concern because they are antibiotics used as a last resort in serious clinical infections. To our knowledge, this is the first description of species Exiguobacterium acetylicum, Klebsiella michiganensis, Lelliottia sp. and Pantoea vagans associated with S. aurata (excluding cases where these bacteria are used as probiotics) and of plasmid-mediated quinolone resistance qnrB19-producing Leclercia adecarboxylata strain. The non-synonymous G385T and C402A mutations at parC gene (within quinolone resistance-determining regions) were also identified in a Klebsiella pneumoniae, revealing decreased susceptibility to ciprofloxacin. In this study, we found not only bacteria from the natural microbiota of fish but also pathogenic bacteria associated with fish and humans. Several antibiotics for which decreased susceptibility was found here are integrated into the World Health Organization list of "critically important antimicrobials" and "highly important antimicrobials" for human medicine.
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Affiliation(s)
- Vanessa Salgueiro
- National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections (NRL-AMR-HAI), Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal; (V.S.); (V.M.); (L.R.); (E.F.)
- Centre for the Studies of Animal Science, Institute of Agrarian and Agri-Food Sciences and Technologies, Oporto University, 4051-401 Oporto, Portugal
| | - Vera Manageiro
- National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections (NRL-AMR-HAI), Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal; (V.S.); (V.M.); (L.R.); (E.F.)
- Centre for the Studies of Animal Science, Institute of Agrarian and Agri-Food Sciences and Technologies, Oporto University, 4051-401 Oporto, Portugal
| | - Narcisa M. Bandarra
- Department of Sea and Marine Resources, Portuguese Institute for the Sea and Atmosphere (IPMA, IP), 1749-077 Lisbon, Portugal;
| | - Lígia Reis
- National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections (NRL-AMR-HAI), Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal; (V.S.); (V.M.); (L.R.); (E.F.)
| | - Eugénia Ferreira
- National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections (NRL-AMR-HAI), Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal; (V.S.); (V.M.); (L.R.); (E.F.)
- Centre for the Studies of Animal Science, Institute of Agrarian and Agri-Food Sciences and Technologies, Oporto University, 4051-401 Oporto, Portugal
| | - Manuela Caniça
- National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections (NRL-AMR-HAI), Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal; (V.S.); (V.M.); (L.R.); (E.F.)
- Centre for the Studies of Animal Science, Institute of Agrarian and Agri-Food Sciences and Technologies, Oporto University, 4051-401 Oporto, Portugal
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Korajkic A, McMinn BR, Staley ZR, Ahmed W, Harwood VJ. Antibiotic-Resistant Enterococcus Species in Marine Habitats: A Review. CURRENT OPINION IN ENVIRONMENTAL SCIENCE & HEALTH 2020; 19:92-100. [PMID: 33134649 PMCID: PMC7592714 DOI: 10.1016/j.coesh.2020.07.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Antibiotic-resistant Enterococcus (ARE) are among leading causes of nosocomial infections worldwide. Enterococcus spp. are ubiquitous in sewage, which can contaminate surface waters via many pathways, providing a route of exposure for humans. This review focuses on ARE in marine and estuarine habitats, including marine animals. Phylogenetic confirmation of the genus Enterococcus and intermediate or full resistance to clinically relevant antibiotics were inclusion criteria. The proportion of resistant isolates varied greatly among antibiotics, for example, 24.2% for ampicillin and 2.4% for vancomycin. The water column contained the highest proportion of ARE observations (18.8%), followed by animal feces and tissues (14.8%), sediment (9.4%), and sand (2.0%). The proportion of multidrug-resistant isolates was the greatest in animal tissue and fecal samples, followed by water and sediments. This review indicates that clinically relevant ARE are present in marine/estuarine habitats and that animals may be important reservoirs.
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Affiliation(s)
- Asja Korajkic
- United Stated Environmental Protection Agency, Cincinnati, OH, USA
| | - Brian R. McMinn
- United Stated Environmental Protection Agency, Cincinnati, OH, USA
| | | | - Warish Ahmed
- Commonwealth Scientific and Industrial Research Organisation, Australia
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Sabença C, de Sousa T, Oliveira S, Viala D, Théron L, Chambon C, Hébraud M, Beyrouthy R, Bonnet R, Caniça M, Poeta P, Igrejas G. Next-Generation Sequencing and MALDI Mass Spectrometry in the Study of Multiresistant Processed Meat Vancomycin-Resistant Enterococci (VRE). BIOLOGY 2020; 9:biology9050089. [PMID: 32349310 PMCID: PMC7284646 DOI: 10.3390/biology9050089] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/18/2020] [Accepted: 04/21/2020] [Indexed: 12/31/2022]
Abstract
Vancomycin-resistant enterococci (VRE), due to their intrinsic resistance to various commonly used antibiotics and their malleable genome, make the treatment of infections caused by these bacteria less effective. The aims of this work were to characterize isolates of Enterococcus spp. that originated from processed meat, through phenotypic and genotypic techniques, as well as to detect putative antibiotic resistance biomarkers. The 19 VRE identified had high resistance to teicoplanin (89%), tetracycline (94%), and erythromycin (84%) and a low resistance to kanamycin (11%), gentamicin (11%), and streptomycin (5%). Based on a Next-Generation Sequencing NGS technique, most isolates were vanA-positive. The most prevalent resistance genes detected were erm(B) and aac(6')-Ii, conferring resistance to the classes of macrolides and aminoglycosides, respectively. MALDI-TOF mass spectrometry (MS) analysis detected an exclusive peak of the Enterococcus genus at m/z (mass-to-charge-ratio) 4428 ± 3, and a peak at m/z 6048 ± 1 allowed us to distinguish Enterococcus faecium from the other species. Several statistically significant protein masses associated with resistance were detected, such as peaks at m/z 6358.27 and m/z 13237.3 in ciprofloxacin resistance isolates. These results reinforce the relevance of the combined and complementary NGS and MALDI-TOF MS techniques for bacterial characterization.
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Affiliation(s)
- Carolina Sabença
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal; (C.S.); (T.d.S.); (S.O.)
- Department of Animal and Veterinary Science, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal;
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
- LAQV-REQUIMTE, Faculty of Science and Technology, University Nova of Lisbon, 2829-516 Lisbon, Caparica, Portugal
| | - Telma de Sousa
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal; (C.S.); (T.d.S.); (S.O.)
- Department of Animal and Veterinary Science, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal;
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
- LAQV-REQUIMTE, Faculty of Science and Technology, University Nova of Lisbon, 2829-516 Lisbon, Caparica, Portugal
| | - Soraia Oliveira
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal; (C.S.); (T.d.S.); (S.O.)
- Department of Animal and Veterinary Science, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal;
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
- LAQV-REQUIMTE, Faculty of Science and Technology, University Nova of Lisbon, 2829-516 Lisbon, Caparica, Portugal
| | - Didier Viala
- INRAE, Plateforme d’Exploration du Métabolisme, composante protéomique (PFEMcp), 63122 Saint-Genès Champanelle, France; (D.V.); (C.C.); (M.H.)
| | - Laetitia Théron
- INRAE, UR0370 Qualité des Produits Animaux (QuaPA), 63122 Saint-Genès Champanelle, France;
| | - Christophe Chambon
- INRAE, Plateforme d’Exploration du Métabolisme, composante protéomique (PFEMcp), 63122 Saint-Genès Champanelle, France; (D.V.); (C.C.); (M.H.)
- INRAE, UR0370 Qualité des Produits Animaux (QuaPA), 63122 Saint-Genès Champanelle, France;
| | - Michel Hébraud
- INRAE, Plateforme d’Exploration du Métabolisme, composante protéomique (PFEMcp), 63122 Saint-Genès Champanelle, France; (D.V.); (C.C.); (M.H.)
- INRAE, UMR0454 Microbiologie Environnement Digestif Santé (MEDiS), Université Clermont Auvergne, 63122 Saint-Genès Champanelle, France
| | - Racha Beyrouthy
- Centre National de Référence de la Résistance aux Antibiotiques, Centre Hospitalier Universitaire, 63003 Clermont-Ferrand, France; (R.B.); (R.B.)
- UMR1071 INSERM, USC1382 INRAE Microbiologie Intestin Inflammation et Susceptibilité de l’Hôte (M2iSH), Université Clermont Auvergne, 63001 Clermont-Ferrand, France
| | - Richard Bonnet
- Centre National de Référence de la Résistance aux Antibiotiques, Centre Hospitalier Universitaire, 63003 Clermont-Ferrand, France; (R.B.); (R.B.)
- UMR1071 INSERM, USC1382 INRAE Microbiologie Intestin Inflammation et Susceptibilité de l’Hôte (M2iSH), Université Clermont Auvergne, 63001 Clermont-Ferrand, France
| | - Manuela Caniça
- National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections, National Institute of Health Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal;
- Centre for the Studies of Animal Science, Institute of Agrarian and Agri-Food Sciences and Technologies, Oporto University, 4051-401 Oporto, Portugal
| | - Patrícia Poeta
- Department of Animal and Veterinary Science, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal;
- LAQV-REQUIMTE, Faculty of Science and Technology, University Nova of Lisbon, 2829-516 Lisbon, Caparica, Portugal
| | - Gilberto Igrejas
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal; (C.S.); (T.d.S.); (S.O.)
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
- LAQV-REQUIMTE, Faculty of Science and Technology, University Nova of Lisbon, 2829-516 Lisbon, Caparica, Portugal
- Correspondence: ; Tel.: +351-259-350-930
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Abstract
Enterococci are natural inhabitants of the intestinal tract in humans and many animals, including food-producing and companion animals. They can easily contaminate the food and the environment, entering the food chain. Moreover, Enterococcus is an important opportunistic pathogen, especially the species E. faecalis and E. faecium, causing a wide variety of infections. This microorganism not only contains intrinsic resistance mechanisms to several antimicrobial agents, but also has the capacity to acquire new mechanisms of antimicrobial resistance. In this review we analyze the diversity of enterococcal species and their distribution in the intestinal tract of animals. Moreover, resistance mechanisms for different classes of antimicrobials of clinical relevance are reviewed, as well as the epidemiology of multidrug-resistant enterococci of animal origin, with special attention given to beta-lactams, glycopeptides, and linezolid. The emergence of new antimicrobial resistance genes in enterococci of animal origin, such as optrA and cfr, is highlighted. The molecular epidemiology and the population structure of E. faecalis and E. faecium isolates in farm and companion animals is presented. Moreover, the types of plasmids that carry the antimicrobial resistance genes in enterococci of animal origin are reviewed.
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Ben Said L, Hamdaoui M, Klibi A, Ben Slama K, Torres C, Klibi N. Diversity of species and antibiotic resistance in enterococci isolated from seafood in Tunisia. ANN MICROBIOL 2016. [DOI: 10.1007/s13213-016-1246-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Osman KM, Ali MN, Radwan I, ElHofy F, Abed AH, Orabi A, Fawzy NM. Dispersion of the Vancomycin Resistance Genes vanA and vanC of Enterococcus Isolated from Nile Tilapia on Retail Sale: A Public Health Hazard. Front Microbiol 2016; 7:1354. [PMID: 27617012 PMCID: PMC4999479 DOI: 10.3389/fmicb.2016.01354] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 08/16/2016] [Indexed: 01/29/2023] Open
Abstract
Although normally regarded harmless commensals, enterococci may cause a range of different infections in humans, including urinary tract infections, sepsis, and endocarditis. The acquisition of vancomycin resistance by enterococci (VRE) has seriously affected the treatment and infection control of these organisms. VRE are frequently resistant to all antibiotics that are effective treatment for vancomycin-susceptible enterococci, which leaves clinicians treating VRE infections with limited therapeutic options. With VRE emerging as a global threat to public health, we aimed to isolate, identify enterococci species from tilapia and their resistance to van-mediated glycopeptide (vanA and vanC) as well as the presence of enterococcal surface protein (esp) using conventional and molecular methods. The cultural, biochemical (Vitek 2 system) and polymerase chain reaction results revealed eight Enterococcus isolates from the 80 fish samples (10%) to be further identified as E. faecalis (6/8, 75%) and E gallinarum (2/8, 25%). Intraperitoneal injection of healthy Nile tilapia with the eight Enterococcus isolates caused significant morbidity (70%) within 3 days and 100% mortality at 6 days post-injection with general signs of septicemia. All of the eight Enterococcus isolates were found to be resistant to tetracycline. The 6/6 E. faecalis isolates were susceptible for penicillin, nitrofurantoin, gentamicin, and streptomycin. On the other hand 5/6 were susceptible for ampicillin, vancomycin, chloramphenicol, and ciprofloxacin. The two isolates of E. gallinarum were sensitive to rifampicin and ciprofloxacin and resistant to vancomycin, chloramphenicol, and erythromycin. Molecular characterization proved that they all presented the prototypic vanC element. On the whole, one of the two vancomycin resistance gene was present in 3/8 of the enterococci isolates, while the esp virulence gene was present in 1/8 of the enterococci isolates. The results in this study emphasize the potential role that aquatic environments are correlated to proximity to anthropogenic activities in determining the antimicrobial resistance patterns of Enterococcus spp. recovered from fish in the river Nile in Giza, Elmounib, Egypt as a continuation of our larger study on the reservoirs of antibiotic resistance in the environment.
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Affiliation(s)
- Kamelia M Osman
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Giza Egypt
| | - Mohamed N Ali
- Department of Fish Diseases and Management, Animal Health Research Institute, Giza Egypt
| | - Ismail Radwan
- Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef Egypt
| | - Fatma ElHofy
- Department of Microbiology, Faculty of Veterinary Medicine, Benha University, Benha Egypt
| | - Ahmed H Abed
- Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef Egypt
| | - Ahmed Orabi
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Giza Egypt
| | - Nehal M Fawzy
- Department of Fish Diseases and Management, Animal Health Research Institute, Giza Egypt
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10
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Abat C, Huart M, Garcia V, Dubourg G, Raoult D. Enterococcus faecalis urinary-tract infections: Do they have a zoonotic origin? J Infect 2016; 73:305-13. [PMID: 27475787 DOI: 10.1016/j.jinf.2016.07.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 07/19/2016] [Accepted: 07/21/2016] [Indexed: 02/05/2023]
Abstract
Major human pathogens are frequently isolated from meat-producing animals, particularly poultry. Among them is Enterococcus faecalis, which is known to be one of the main cause of human urinary-tract infections worldwide. Early in 2015, we detected several, consecutive abnormal increases in the weekly number of human E. faecalis infections in various medical settings in the Provence-Alpes-Côte d'Azur region of France, especially including community-acquired urinary-tract infections. Speculating that this region-wide epidemiological event may have originated from animal-based food, we initiated this work to provide an overview of the epidemiology of E. faecalis, with a particular focus on the possible link between E. faecalis clones isolated from food-producing animals and those responsible for human urinary-tract infections. At that time, only one study had clearly identified strong epidemiological links between E. faecalis clones isolated from food-producing animals and human E. faecalis urinary-tract infections. This observation, coupled with our region-wide epidemiological experience, leads us to strongly believe that E. faecalis is a real zoonotic pathogen with potentially highly significant impact on human health. This is of particular concern because of its ability to acquire antibiotic-resistance genes and to infect animals and humans. Various strategies must be urgently implemented to address this public health threat, in particular through the development and implementation of large integrated automated surveillance systems based on animal and human health data to enable us to detect E. faecalis epidemiological events.
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Affiliation(s)
- Cédric Abat
- URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Faculty of Medicine and Pharmacy, Aix-Marseille University, 27 Boulevard Jean Moulin, 13385 Marseille CEDEX 05, France
| | - Michael Huart
- URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Faculty of Medicine and Pharmacy, Aix-Marseille University, 27 Boulevard Jean Moulin, 13385 Marseille CEDEX 05, France
| | - Vincent Garcia
- URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Faculty of Medicine and Pharmacy, Aix-Marseille University, 27 Boulevard Jean Moulin, 13385 Marseille CEDEX 05, France
| | - Grégory Dubourg
- URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Faculty of Medicine and Pharmacy, Aix-Marseille University, 27 Boulevard Jean Moulin, 13385 Marseille CEDEX 05, France
| | - Didier Raoult
- URMITE UM 63 CNRS 7278 IRD 198 INSERM U1905, IHU Méditerranée Infection, Faculty of Medicine and Pharmacy, Aix-Marseille University, 27 Boulevard Jean Moulin, 13385 Marseille CEDEX 05, France.
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Radhouani H, Silva N, Poeta P, Torres C, Correia S, Igrejas G. Potential impact of antimicrobial resistance in wildlife, environment and human health. Front Microbiol 2014; 5:23. [PMID: 24550896 PMCID: PMC3913889 DOI: 10.3389/fmicb.2014.00023] [Citation(s) in RCA: 136] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 01/14/2014] [Indexed: 11/13/2022] Open
Abstract
Given the significant spatial and temporal heterogeneity in antimicrobial resistance distribution and the factors that affect its evolution, dissemination, and persistence, it is important to highlight that antimicrobial resistance must be viewed as an ecological problem. Monitoring the resistance prevalence of indicator bacteria such as Escherichia coli and enterococci in wild animals makes it possible to show that wildlife has the potential to serve as an environmental reservoir and melting pot of bacterial resistance. These researchers address the issue of antimicrobial-resistant microorganism proliferation in the environment and the related potential human health and environmental impact.
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Affiliation(s)
- Hajer Radhouani
- Institute for Biotechnology and Bioengineering, Centre of Genomics and Biotechnology, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Animal and Veterinary Research Centre, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Veterinary Science Department, University of Trás-os-Montes and Alto Douro Vila Real, Portugal
| | - Nuno Silva
- Animal and Veterinary Research Centre, University of Trás-os-Montes and Alto Douro Vila Real, Portugal
| | - Patrícia Poeta
- Animal and Veterinary Research Centre, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Veterinary Science Department, University of Trás-os-Montes and Alto Douro Vila Real, Portugal
| | - Carmen Torres
- Biochemistry and Molecular Biology Area, University of La Rioja Logroño, Spain
| | - Susana Correia
- Institute for Biotechnology and Bioengineering, Centre of Genomics and Biotechnology, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Animal and Veterinary Research Centre, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Veterinary Science Department, University of Trás-os-Montes and Alto Douro Vila Real, Portugal
| | - Gilberto Igrejas
- Institute for Biotechnology and Bioengineering, Centre of Genomics and Biotechnology, University of Trás-os-Montes and Alto Douro Vila Real, Portugal ; Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro Vila Real, Portugal
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Oravcova V, Zurek L, Townsend A, Clark AB, Ellis JC, Cizek A, Literak I. American crows as carriers of vancomycin-resistant enterococci with vanA gene. Environ Microbiol 2013; 16:939-49. [PMID: 23919480 DOI: 10.1111/1462-2920.12213] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 07/06/2013] [Accepted: 07/10/2013] [Indexed: 11/27/2022]
Abstract
We studied the vanA-carrying vancomycin-resistant enterococci (VRE) isolated from American crows in the United States during the winter 2011/2012. Faecal samples from crows were cultured selectively for VRE and characterized. Pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) were used to examine epidemiological relationships of vanA-containing VRE. Isolates were tested in vitro for their ability to horizontally transfer the vancomycin resistance trait. VRE with the vanA gene were found in 15 (2.5%) of 590 crows samples, from which we obtained 22 different isolates. Enterococcal species were Enterococcus faecium (14) and E. faecalis (8). One, two and 19 isolates originated from Kansas, New York State and Massachusetts, respectively. Based on MLST analysis, E. faecium isolates were grouped as ST18 (6 isolates), ST555 (2), and novel types ST749 (1), ST750 (3), ST751 (1), ST752 (1). Enterococcus faecalis isolates belonged to ST6 (1), ST16 (3) and ST179 (4). All isolates were able to transfer the vancomycin resistance trait via filter mating with very high transfer range. Clinically important enterococci with the vanA gene occur in faeces of wild American crows throughout the United States. These migrating birds may contribute to the dissemination of VRE in environment over large distances. [Correction added after first online publication on 06 August 2013: The number of E. faecium ST752 isolate is now amended to '1', consistent with that shown in the 'Results' section and Figure 2.].
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Affiliation(s)
- Veronika Oravcova
- Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1-3, 612 42, Brno, Czech Republic; CEITEC VFU, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
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