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Martín-Vélez V, Navarro J, Figuerola J, Aymí R, Sabaté S, Planell R, Vila J, Montalvo T. A spatial analysis of urban gulls contribution to the potential spread of zoonotic and antibiotic-resistant bacteria. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168762. [PMID: 38007121 DOI: 10.1016/j.scitotenv.2023.168762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 11/15/2023] [Accepted: 11/19/2023] [Indexed: 11/27/2023]
Abstract
Wildlife human interactions within cities are becoming more common with consequences for pathogen transmission and human health. Large gulls are opportunistic feeders, adapted to coexist with humans in urban environments, and are potential vectors for spread and transmission of pathogens, including antimicrobial-resistant bacteria. We investigated the potential role that urban gulls play in the spread and dispersal of these bacteria. We analysed 129 faecal swabs from yellow-legged gulls (Larus michahellis) of different ages (56 adults and 73 immatures) during the breeding period from three years in the highly populated city of Barcelona (northeastern Spain). Thirteen individuals tested positive for the pathogenic bacteria (Escherichia coli, Listeria monocytogenes, Campylobacter jejuni), including antibiotic-resistant strains. We modelled the potential spatial spread of pathogens using the GPS trajectories of 58 yellow-legged gulls (23 adults, 35 immature individuals), which included the thirteen individuals that tested positive for pathogenic bacteria. By overlapping the spatially explicit pathogen dispersal maps with the distribution of urban installations sensitive at risk of possible pathogen spillover (e.g. elder and medical centres, markets, food industries, kindergartens, or public water sources), we identified potential areas at risk of pathogen spillover. Pathogens may be potentially spread to municipalities beyond Barcelona city borders. The results revealed that immature gulls dispersed pathogens over larger areas than adults (maximum dispersal distances of 167 km versus 53.2 km, respectively). Recreational urban water sources were the most sensitive habitats visited by GPS-tagged gulls that tested positive, followed by schools. Combining GPS movement data with pathogen analytics allows spatially explicit maps to be generated using a One Health approach that can help urban and public health management within large cities, such as Barcelona, and identify areas used by humans that are sensitive to pathogen spillover from gulls.
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Affiliation(s)
- Víctor Martín-Vélez
- Institut de Ciències del Mar (ICM), CSIC, Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain; Departamento de Ciencias de la Vida, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
| | - Joan Navarro
- Institut de Ciències del Mar (ICM), CSIC, Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain.
| | - Jordi Figuerola
- Estación Biológica de Doñana (EBD), CSIC, Avenida Américo Vespucio 26, 41092 Sevilla, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Raül Aymí
- Institut Català d'Ornitologia, Museu de Ciències Naturals de Barcelona, Pl. Leonardo da Vinci, 4-5, a, Barcelona 08019, Spain
| | - Sara Sabaté
- Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Sant Quintí 77-79, 08041 Barcelona, Spain; Agencia de Salud Pública de Barcelona, Pl. Lesseps, 1, 08023 Barcelona, Spain
| | - Raquel Planell
- Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Sant Quintí 77-79, 08041 Barcelona, Spain; Agencia de Salud Pública de Barcelona, Pl. Lesseps, 1, 08023 Barcelona, Spain
| | - Jordi Vila
- Department of Clinical Microbiology, Center for Biomedical Diagnosis (CDB), Hospital Clinic-Universitat de Barcelona, Barcelona, Spain.; ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain; CIBER de Enfermedades Infecciosas (CIBERINFEC), Instituto Salud Carlos III, Madrid, Spain
| | - Tomás Montalvo
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Sant Quintí 77-79, 08041 Barcelona, Spain; Agencia de Salud Pública de Barcelona, Pl. Lesseps, 1, 08023 Barcelona, Spain
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2
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Musa L, Stefanetti V, Casagrande Proietti P, Grilli G, Gobbi M, Toppi V, Brustenga L, Magistrali CF, Franciosini MP. Antimicrobial Susceptibility of Commensal E. coli Isolated from Wild Birds in Umbria (Central Italy). Animals (Basel) 2023; 13:1776. [PMID: 37889728 PMCID: PMC10252015 DOI: 10.3390/ani13111776] [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: 04/19/2023] [Revised: 05/22/2023] [Accepted: 05/25/2023] [Indexed: 10/29/2023] Open
Abstract
The role of wildlife, including birds, in antimicrobial resistance is nowadays a speculative topic for the scientific community as they could be spreaders/sources of antimicrobial resistance genes. In this respect, we aimed to investigate the antimicrobial susceptibility of 100 commensal Escherichia coli strains, isolated from wild birds from an Umbrian rescue centre and admitted to the Veterinary Teaching Hospital of Perugia (Central Italy) mainly for traumatic injuries. The possible presence of Salmonella spp. and ESBL-producing E. coli was also estimated. The highest prevalence of resistance was observed for ampicillin (85%) and amoxicillin/clavulanic acid (47%), probably due to their extensive use in human and veterinary medicine. Seventeen out of the one hundred E. coli isolates (17%) displayed a multidrug-resistance profile, including the beta-lactam category, with the most common resistance patterns to three or four classes of antibiotics. Resistance to ciprofloxacin, cefotaxime and ceftazidime exhibited values of 18%, 17% and 15%, respectively. Eight out of the hundred E. coli isolates (8%) were ESBL and seven showed multidrug resistance profiles. Salmonella spp. was not isolated. Resistance to third-generation cephalosporins, also detected in long-distance migratory birds, suggests the need for monitoring studies to define the role of wild birds in antimicrobial resistance circuits.
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Affiliation(s)
- Laura Musa
- Department of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy; (L.M.); (P.C.P.); (V.T.); (L.B.); (M.P.F.)
- Department of Veterinary Medicine and Animal Sciences, University of Milan, 26900 Lodi, Italy;
| | - Valentina Stefanetti
- Department of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy; (L.M.); (P.C.P.); (V.T.); (L.B.); (M.P.F.)
| | - Patrizia Casagrande Proietti
- Department of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy; (L.M.); (P.C.P.); (V.T.); (L.B.); (M.P.F.)
| | - Guido Grilli
- Department of Veterinary Medicine and Animal Sciences, University of Milan, 26900 Lodi, Italy;
| | - Marco Gobbi
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati” (IZSUM), Via G. Salvemini 1, 06126 Perugia, Italy; (M.G.); (C.F.M.)
| | - Valeria Toppi
- Department of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy; (L.M.); (P.C.P.); (V.T.); (L.B.); (M.P.F.)
| | - Leonardo Brustenga
- Department of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy; (L.M.); (P.C.P.); (V.T.); (L.B.); (M.P.F.)
| | - Chiara Francesca Magistrali
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati” (IZSUM), Via G. Salvemini 1, 06126 Perugia, Italy; (M.G.); (C.F.M.)
| | - Maria Pia Franciosini
- Department of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy; (L.M.); (P.C.P.); (V.T.); (L.B.); (M.P.F.)
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3
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Elsby DT, Zadoks RN, Boyd K, Silva N, Chase-Topping M, Mitchel MC, Currie C, Taggart MA. Antimicrobial resistant Escherichia coli in Scottish wild deer: Prevalence and risk factors. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 314:120129. [PMID: 36113642 DOI: 10.1016/j.envpol.2022.120129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 09/02/2022] [Accepted: 09/04/2022] [Indexed: 06/15/2023]
Abstract
Antimicrobial resistance (AMR) is a recognised threat to global health. Obtaining data on the prevalence of AMR in environmental bacteria is key to understanding drivers and routes of transmission. Here, 325 Shiga toxin negative deer faecal samples-gathered from across the Scottish mainland-were screened for the presence of AMR Escherichia coli and investigated for potential risk factors associated with AMR occurrence. E. coli with resistance to antimicrobials of clinical health concern, including carbapenems and 3rd generation cephalosporins, were targeted. Ninety-nine percent of samples yielded E. coli, and the prevalence of resistant E. coli at the level of faecal samples was 21.8% (n = 71) for tetracycline, 6.5% (n = 21) for cefpodoxime, 0.3% for ciprofloxacin (n = 1), with no recorded resistance to meropenem. Potential risk factors for tetracycline and cefpodoxime resistance were investigated. The presence of broadleaved woodlands was significantly associated with both AMR phenotypes, which may relate to land use within or around such woodlands. Associated risk factors varied across resistance phenotype and deer species, with proximity or density of horses an indicator of significantly decreased and increased risk, respectively, or tetracycline and cefpodoxime resistance in E. coli from roe deer, but not from red deer. Distance from wastewater treatment plants was a significant risk factor for tetracycline resistance in E. coli from red deer but not from roe deer. Data indicated that AMR E. coli can occur in wild deer populations that are not directly exposed to the selective pressure exerted by antimicrobial treatment. Overall, resistance to critically important antimicrobials was found to be low in the studied population, suggesting no immediate cause for concern regarding human health. Utilising existing culling frameworks, wild deer in Scotland could function well as a sentinel species for the surveillance of AMR in the Scottish environment.
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Affiliation(s)
- Derek T Elsby
- Environmental Research Institute, University of the Highland and Islands, Castle St, Thurso, KW14 7JD, United Kingdom.
| | - Ruth N Zadoks
- Sydney School of Veterinary Science, University of Sydney, Camden, NSW, 2570, Australia; Moredun Research Institute, Pentland Science Park, Penicuik, EH26 0PZ, United Kingdom
| | - Kenneth Boyd
- Environmental Research Institute, University of the Highland and Islands, Castle St, Thurso, KW14 7JD, United Kingdom
| | - Nuno Silva
- Moredun Research Institute, Pentland Science Park, Penicuik, EH26 0PZ, United Kingdom
| | - Margo Chase-Topping
- Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Mairi C Mitchel
- Moredun Research Institute, Pentland Science Park, Penicuik, EH26 0PZ, United Kingdom
| | - Carol Currie
- Moredun Research Institute, Pentland Science Park, Penicuik, EH26 0PZ, United Kingdom
| | - Mark A Taggart
- Environmental Research Institute, University of the Highland and Islands, Castle St, Thurso, KW14 7JD, United Kingdom
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Kumar S, Mostafazadeh AK, Kumar LR, Tyagi RD, Drogui P, Brien E. Advancements in laundry wastewater treatment for reuse: a review. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2022; 57:927-946. [PMID: 36221933 DOI: 10.1080/10934529.2022.2132076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Laundry related activities produce huge quantity of wastewater that is very rich in lint, dyes, surfactants, and detergents. The large amount of laundry wastewater (LWW) is generated by extensive human activities. LWW needs to be treated in order to tackle the challenging problem of water pollution and to accomplish water sustainability. To achieve this success, LWW can be reused for several purposes such as irrigation, construction activities, vehicle washing etc. However, there are several challenges in the reclamation of LWW like effective handling of the wastewater and meeting the regulatory criteria. Based on the literature review it seems that a single treatment process is not sufficient to treat LWW up to acceptable reuse standards. To that end, different treatment chains have been proposed: i) hybrid processes combining membrane filtration with adsorption; ii) advanced oxidation process using ultraviolet (UV) and hydrogen peroxide (H2O2); iii) coagulation-flocculation combined with sand filtration; iv) combination of ozonation process, adsorption, and ultrafiltration (UF). This review paper discusses the selection of suitable treatment technology depends on several factors: i) a well-designed equipment, ii) cost-effectiveness of treatment method and iii) desired characteristics of the treated water. The review paper also presents solutions for treatment and reclamation of LWW.
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Affiliation(s)
- Sushil Kumar
- INRS Eau, Terre et Environnement, Québec, Canada
| | - Ali Khosravanipour Mostafazadeh
- INRS Eau, Terre et Environnement, Québec, Canada
- Institut de recherche et de développement en agroenvironnement, Québec, Canada
| | | | - R D Tyagi
- BOSK Bioproducts, Québec, Canada
- School of Technology, Huzhou University, Huzhou, China
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5
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Urban Birds as Antimicrobial Resistance Sentinels: White Storks Showed Higher Multidrug-Resistant Escherichia coli Levels Than Seagulls in Central Spain. Animals (Basel) 2022; 12:ani12192714. [PMID: 36230455 PMCID: PMC9558531 DOI: 10.3390/ani12192714] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/03/2022] [Accepted: 10/07/2022] [Indexed: 12/03/2022] Open
Abstract
The presence of AMR bacteria in the human-animal-environmental interface is a clear example of the One Health medicine. Several studies evidence the presence of resistant bacteria in wildlife, which can be used as a good indicator of anthropization level on the ecosystem. The fast increase in AMR in the environment in the last decade has been led by several factors as globalization and migration. Migratory birds can travel hundreds of kilometers and disseminate pathogens and AMR through different regions or even continents. The aim of this study was to compare the level of AMR in three migratory bird species: Ciconia ciconia, Larus fuscus and Chroicocephalus ridibundus. For this purpose, commensal Escherichia coli has been considered a useful indicator for AMR studies. After E. coli isolation from individual cloacal swabs, antimicrobial susceptibility tests were performed by the disk-diffusion method, including 17 different antibiotics. A total of 63.2% of gulls had resistant strains, in contrast to 31.6% of white storks. Out of all the resistant strains, 38.9% were considered multi-drug resistant (50% of white storks and 30% of seagulls). The antibiotic classes with the highest rate of AMR were betalactamics, quinolones and tetracyclines, the most commonly used antibiotic in human and veterinary medicine in Spain.
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6
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Ineson KM, Hill NJ, Clark DE, MacKenzie KG, Whitney JJ, Laskaris Y, Ronconi RA, Ellis JC, Giroux JF, Lair S, Stevens S, Puryear WB, Runstadler JA. Age and season predict influenza A virus dynamics in urban gulls: consequences for natural hosts in unnatural landscapes. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2022; 32:e2497. [PMID: 34783416 DOI: 10.1002/eap.2497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 06/01/2021] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
Gulls are ubiquitous in urban areas due to a growing reliance on anthropogenic feeding sites, which has led to changes in their abundance, distribution, and migration ecology, with implications for disease transmission. Gulls offer a valuable model for testing hypotheses regarding the dynamics of influenza A virus (IAV) - for which gulls are a natural reservoir in urban areas. We sampled sympatric populations of Ring-billed (Larus delawarensis), Herring (L. argentatus), and Great Black-backed Gulls (L. marinus) along the densely populated Atlantic rim of North America to understand how IAV transmission is influenced by drivers such as annual cycle, host species, age, habitat type, and their interplay. We found that horizontal transmission, rather than vertical transmission, played an outsized role in the amplification of IAV due to the convergence of gulls from different breeding grounds and age classes. We detected overlapping effects of age and season in our prevalence model, identifying juveniles during autumn as the primary drivers of the seasonal epidemic in gulls. Gulls accumulated immunity over their lifespan, however short-term fluctuations in seroprevalence were observed, suggesting that migration may impose limits on the immune system to maintain circulating antibodies. We found that gulls in coastal urban habitats had higher viral prevalence than gulls captured inland, correlating with higher richness of waterbird species along the coast, a mechanism supported by our movement data. The peak in viral prevalence in newly fledged gulls that are capable of long-distance movement has important implications for the spread of pathogens to novel hosts during the migratory season as well as for human health as gulls increasingly utilize urban habitats.
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Affiliation(s)
- Katherine M Ineson
- Department of Natural Resources & the Environment, University of New Hampshire, Durham, New Hampshire, 03824, USA
| | - Nichola J Hill
- Department of Biology, University of Massachusetts, Boston, Massachusetts, 02125, USA
| | - Daniel E Clark
- Division of Water Supply Protection, Massachusetts Department of Conservation and Recreation, West Boylston, Massachusetts, 01583, USA
| | - Kenneth G MacKenzie
- Division of Water Supply Protection, Massachusetts Department of Conservation and Recreation, West Boylston, Massachusetts, 01583, USA
| | - Jillian J Whitney
- Division of Water Supply Protection, Massachusetts Department of Conservation and Recreation, West Boylston, Massachusetts, 01583, USA
| | - Yianni Laskaris
- US Fish and Wildlife Service, Galloway, New Jersey, 08205, USA
| | - Robert A Ronconi
- Canadian Wildlife Service, Environment and Climate Change Canada, Dartmouth, Nova Scotia, B2Y 2N6, Canada
| | - Julie C Ellis
- Department of Pathobiology, Wildlife Futures Program, University of Pennsylvania School of Veterinary Medicine, Kennett Square, Pennsylvania, 19348, USA
| | - Jean-François Giroux
- Département des sciences biologiques, Université du Québec à Montréal, Montréal, Québec, H3C 3P8, Canada
| | - Stéphane Lair
- Centre québécois sur la santé des animaux sauvages/Canadian Wildlife Health Cooperative, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, J2S 2M2, Canada
| | - Skyler Stevens
- Division of Mathematics, Physical, and Natural Sciences, University of New Mexico, Gallup, New Mexico, 87301, USA
| | - Wendy B Puryear
- Department of Infectious Disease and Global Health, Tufts University, North Grafton, Massachusetts, 01536, USA
| | - Jonathan A Runstadler
- Department of Infectious Disease and Global Health, Tufts University, North Grafton, Massachusetts, 01536, USA
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7
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Zeballos-Gross D, Rojas-Sereno Z, Salgado-Caxito M, Poeta P, Torres C, Benavides JA. The Role of Gulls as Reservoirs of Antibiotic Resistance in Aquatic Environments: A Scoping Review. Front Microbiol 2021; 12:703886. [PMID: 34367104 PMCID: PMC8343230 DOI: 10.3389/fmicb.2021.703886] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/21/2021] [Indexed: 12/04/2022] Open
Abstract
The role of wildlife with long-range dispersal such as gulls in the global dissemination of antimicrobial resistance (AMR) across natural and anthropogenic aquatic environments remains poorly understood. Antibiotic-resistant bacteria have been detected in resident and migratory gulls worldwide for more than a decade, suggesting gulls as either sentinels of AMR pollution from anthropogenic sources or independent reservoirs that could maintain and disperse AMR across aquatic environments. However, confirming either of these roles remains challenging and incomplete. In this review, we present current knowledge on the geographic regions where AMR has been detected in gulls, the molecular characterization of resistance genes, and the evidence supporting the capacity of gulls to disperse AMR across regions or countries. We identify several limitations of current research to assess the role of gulls in the spread of AMR including most studies not identifying the source of AMR, few studies comparing bacteria isolated in gulls with other wild or domestic species, and almost no study performing longitudinal sampling over a large period of time to assess the maintenance and dispersion of AMR by gulls within and across regions. We suggest future research required to confirm the role of gulls in the global dispersion of AMR including the standardization of sampling protocols, longitudinal sampling using advanced satellite tracking, and whole-genome sequencing typing. Finally, we discuss the public health implications of the spread of AMR by gulls and potential solutions to limit its spread in aquatic environments.
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Affiliation(s)
- Danae Zeballos-Gross
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Zulma Rojas-Sereno
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile.,Facultad de Ciencias de la Vida, Centro de Investigación para la Sustentabilidad, Universidad Andrés Bello, Santiago, Chile
| | - Marília Salgado-Caxito
- Millennium Initiative for Collaborative Research on Bacterial Resistance (MICROB-R), Santiago, Chile.,Escuela de Medicina Veterinaria, Facultad de Agronomía e Ingeniería Forestal, Facultad de Ciencias Biológicas y Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | - Patricia Poeta
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.,Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisbon, Lisbon, Portugal.,Veterinary and Animal Research Centre, Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Carmen Torres
- Área Bioquímica y Biología Molecular, Universidad de La Rioja, Logroño, Spain
| | - Julio A Benavides
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile.,Facultad de Ciencias de la Vida, Centro de Investigación para la Sustentabilidad, Universidad Andrés Bello, Santiago, Chile.,Millennium Initiative for Collaborative Research on Bacterial Resistance (MICROB-R), Santiago, Chile
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8
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Comparison of Antimicrobial-Resistant Escherichia coli Isolates from Urban Raccoons and Domestic Dogs. Appl Environ Microbiol 2021; 87:e0048421. [PMID: 33990315 DOI: 10.1128/aem.00484-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Wildlife can be exposed to antimicrobial-resistant bacteria (ARB) via multiple pathways. Spatial overlap with domestic animals is a prominent exposure pathway. However, most studies of wildlife-domestic animal interfaces have focused on livestock and little is known about the wildlife-companion animal interface. Here, we investigated the prevalence and phylogenetic relatedness of extended-spectrum cephalosporin-resistant (ESC-R) Escherichia coli from raccoons (Procyon lotor) and domestic dogs (Canis lupus familiaris) in the metropolitan area of Chicago, IL, USA. To assess the potential importance of spatial overlap with dogs, we explored whether raccoons sampled at public parks (i.e., parks where people and dogs could enter) differed in prevalence and phylogenetic relatedness of ESC-R E. coli to raccoons sampled at private parks (i.e., parks where people and dogs could not enter). Raccoons had a significantly higher prevalence of ESC-R E. coli (56.9%) than dogs (16.5%). However, the richness of ESC-R E. coli did not vary by host species. Further, core single-nucleotide polymorphism (SNP)-based phylogenetic analyses revealed that isolates did not cluster by host species, and in some cases displayed a high degree of similarity (i.e., differed by less than 20 core SNPs). Spatial overlap analyses revealed that ESC-R E. coli were more likely to be isolated from raccoons at public parks than raccoons at private parks, but only for parks located in suburban areas of Chicago, not urban areas. That said, ESC-R E. coli isolated from raccoons did not genetically cluster by park of origin. Our findings suggest that domestic dogs and urban/suburban raccoons can have a diverse range of ARB, some of which display a high degree of genetic relatedness (i.e., differ by less than 20 core SNPs). Given the differences in prevalence, domestic dogs are unlikely to be an important source of exposure for mesocarnivores in urbanized areas. IMPORTANCE Antimicrobial-resistant bacteria (ARB) have been detected in numerous wildlife species across the globe, which may have important implications for human and animal health. Wildlife can be exposed to ARB via numerous pathways, including via spatial overlap with domestic animals. However, the interface with domestic animals has mostly been explored for livestock and little is known about the interface between wild animals and companion animals. Our work suggests that urban and suburban wildlife can have similar ARB to local domestic dogs, but local dogs are unlikely to be a direct source of exposure for urban-adapted wildlife. This finding is important because it underscores the need to incorporate wildlife into antimicrobial resistance surveillance efforts, and to investigate whether certain urban wildlife species could act as additional epidemiological pathways of exposure for companion animals, and indirectly for humans.
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9
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Worsley-Tonks KEL, Miller EA, Anchor CL, Bender JB, Gehrt SD, McKenzie SC, Singer RS, Johnson TJ, Craft ME. Importance of anthropogenic sources at shaping the antimicrobial resistance profile of a peri-urban mesocarnivore. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 764:144166. [PMID: 33401044 DOI: 10.1016/j.scitotenv.2020.144166] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/25/2020] [Accepted: 11/29/2020] [Indexed: 06/12/2023]
Abstract
Anthropogenically derived antimicrobial-resistant bacteria (ARB) and antimicrobial resistance genes (ARG) have been detected in wildlife. The likelihood of detecting ARB and ARG in wildlife increases with wildlife exposure to anthropogenic sources of antimicrobial resistance (AMR). Whether anthropogenic sources also increase the risk for AMR to spread in bacteria of wildlife is not well understood. The spread of AMR in bacteria of wildlife can be estimated by examining the richness of ARB and ARG, and the prevalence of ARB that have mobilizable ARG (i.e., ARG that can be transferred across bacteria via plasmids). Here, we investigated whether raccoons (Procyon lotor), with different exposures to anthropogenic sources, differed in prevalence and richness of extended-spectrum cephalosporin-resistant (ESC-R) Escherichia coli, richness of ARG present in ESC-R E. coli, and prevalence of ESC-R E. coli with plasmid-associated ARG. Sampling took place over the course of 10 months at seven sites in Chicago, USA. ESC-R E. coli were isolated from over half of the 211 raccoons sampled and were more likely to be isolated from urban than suburban raccoons. When examining the whole-genome sequences of ESC-R E. coli, 56 sequence types were identified, most of which were associated with the ARG blaCMY and blaCTX-M. A greater richness of ESC-R E. coli sequence types was found at sites with a wastewater treatment plant (WWTP) than without, but no difference was detected based on urban context. ARG richness in ESC-R E. coli did not significantly vary by urban context nor with presence of a WWTP. Importantly, ESC-R E. coli carrying plasmid-associated blaCTX-M and blaCMY ARG were more likely to be isolated from raccoons sampled at sites with a WWTP than without. Our findings indicate that anthropogenic sources may shape the AMR profile of wildlife, reinforcing the need to prevent dissemination of AMR into the environment.
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Affiliation(s)
- Katherine E L Worsley-Tonks
- Department of Veterinary Population Medicine, University of Minnesota, 1988 Fitch Avenue, Saint Paul, MN 55108, United States of America.
| | - Elizabeth A Miller
- Department of Veterinary and Biomedical Sciences, University of Minnesota, 1971 Commonwealth Avenue, Saint Paul, MN 55108, United States of America
| | - Chris L Anchor
- Forest Preserve District of Cook County, 28W040 IL-58, Elgin, IL 60120, United States of America
| | - Jeff B Bender
- School of Public Health, University of Minnesota, 420 Delaware Street SE, Minneapolis, MN, 55455, United States of America
| | - Stanley D Gehrt
- School of Environment and Natural Resources, The Ohio State University, 2021 Coffey Road, Columbus, OH 43210, United States of America
| | - Shane C McKenzie
- Max McGraw Wildlife Foundation, 14N322 IL-25, Dundee Township, IL 60118, United States of America
| | - Randall S Singer
- Department of Veterinary and Biomedical Sciences, University of Minnesota, 1971 Commonwealth Avenue, Saint Paul, MN 55108, United States of America
| | - Timothy J Johnson
- Department of Veterinary and Biomedical Sciences, University of Minnesota, 1971 Commonwealth Avenue, Saint Paul, MN 55108, United States of America
| | - Meggan E Craft
- Department of Veterinary Population Medicine, University of Minnesota, 1988 Fitch Avenue, Saint Paul, MN 55108, United States of America; Department of Ecology, Evolution and Behavior, University of Minnesota, 1479 Gortner Avenue, Saint Paul, MN 55108, United States of America
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10
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Malekian M, Shagholian J, Hosseinpour Z. Pathogen Presence in Wild Birds Inhabiting Landfills in Central Iran. ECOHEALTH 2021; 18:76-83. [PMID: 33783651 DOI: 10.1007/s10393-021-01516-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 01/26/2021] [Accepted: 02/15/2021] [Indexed: 05/26/2023]
Abstract
Wild birds are important in the transmission of many zoonotic pathogens such as salmonella and avian influenza virus (AIV). The current study investigated the presence of bacterial and viral pathogens in birds foraging at an open landfill located in Central Iran. We collected blood and intestinal samples from five abundant species, including rook (Corvus frugilegus), European starling (Sturnus vulgaris), house sparrow (Passer domesticus), black-headed gull (Chroicocephalus ridibundus) and slender-billed gull Chroicocephalus genei for bacteriological and serological examinations. Escherichia coli was present in all of the five species, while Salmonella spp. was found in four species. Campylobacter jejuni, Yersinia spp., Cytrobacter spp., and Klebsiella spp. were other bacteria isolated from all of the five species. Competitive ELISA showed that 19 samples (32%) from the two gull species were positive for AIV. There was no detection of West Nile virus, or Newcastle disease virus in the 150 birds sampled. The prevalence of these pathogens in landfill birds indicated that a potential risk is posed to landfill workers and the surrounding community, adding to our limited knowledge of the potential for landfills to support disease vectors.
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Affiliation(s)
- Mansoureh Malekian
- Department of Natural Resources, Isfahan University of Technology, 84156-83111, Isfahan, Iran.
| | - Javad Shagholian
- Department of Natural Resources, Isfahan University of Technology, 84156-83111, Isfahan, Iran
| | - Zahra Hosseinpour
- Department of Natural Resources, Isfahan University of Technology, 84156-83111, Isfahan, Iran
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11
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Streptococcal Infections in Marine Mammals. Microorganisms 2021; 9:microorganisms9020350. [PMID: 33578962 PMCID: PMC7916692 DOI: 10.3390/microorganisms9020350] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/29/2021] [Accepted: 02/07/2021] [Indexed: 01/28/2023] Open
Abstract
Marine mammals are sentinels for the marine ecosystem and threatened by numerous factors including infectious diseases. One of the most frequently isolated bacteria are beta-hemolytic streptococci. However, knowledge on ecology and epidemiology of streptococcal species in marine mammals is very limited. This review summarizes published reports on streptococcal species, which have been detected in marine mammals. Furthermore, we discuss streptococcal transmission between and adaptation to their marine mammalian hosts. We conclude that streptococci colonize and/or infect marine mammals very frequently, but in many cases, streptococci isolated from marine mammals have not been further identified. How these bacteria disseminate and adapt to their specific niches can only be speculated due to the lack of respective research. Considering the relevance of pathogenic streptococci for marine mammals as part of the marine ecosystem, it seems that they have been neglected and should receive scientific interest in the future.
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12
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Merging Metagenomics and Spatial Epidemiology To Understand the Distribution of Antimicrobial Resistance Genes from Enterobacteriaceae in Wild Owls. Appl Environ Microbiol 2020; 86:AEM.00571-20. [PMID: 32769191 DOI: 10.1128/aem.00571-20] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 08/03/2020] [Indexed: 11/20/2022] Open
Abstract
Antimicrobial resistance (AMR) is a well-documented phenomenon in bacteria from many natural ecosystems, including wild animals. However, the specific determinants and spatial distribution of resistant bacteria and antimicrobial resistance genes (ARGs) in the environment remain incompletely understood. In particular, information regarding the importance of anthropogenic sources of AMR relative to that of other biological and ecological influences is lacking. We conducted a cross-sectional study of AMR in great horned owls (Bubo virginianus) and barred owls (Strix varia) admitted to a rehabilitation center in the midwestern United States. A combination of selective culture enrichment and shotgun metagenomic sequencing was used to identify ARGs from Enterobacteriaceae Overall, the prevalence of AMR was comparable to that in past studies of resistant Enterobacteriaceae in raptors, with acquired ARGs being identified in 23% of samples. Multimodel regression analyses identified seasonality and owl age to be important predictors of the likelihood of the presence of ARGs, with birds sampled during warmer months being more likely to harbor ARGs than those sampled during cooler months and with birds in their hatch year being more likely to harbor β-lactam ARGs than adults. Beyond host-specific determinants, ARG-positive owls were also more likely to be recovered from areas of high agricultural land cover. Spatial clustering analyses identified a significant high-risk cluster of tetracycline resistance gene-positive owls in the southern sampling range, but this could not be explained by any predictor variables. Taken together, these results highlight the complex distribution of AMR in natural environments and suggest that both biological and anthropogenic factors play important roles in determining the emergence and persistence of AMR in wildlife.IMPORTANCE Antimicrobial resistance (AMR) is a multifaceted problem that poses a worldwide threat to human and animal health. Recent reports suggest that wildlife may play an important role in the emergence, dissemination, and persistence of AMR. As such, there have been calls for better integration of wildlife into current research on AMR, including the use of wild animals as biosentinels of AMR contamination in the environment. A One Health approach can be used to gain a better understanding of all AMR sources and pathways, particularly those at the human-animal-environment interface. Our study focuses on this interface in order to assess the effect of human-impacted landscapes on AMR in a wild animal. This work highlights the value of wildlife rehabilitation centers for environmental AMR surveillance and demonstrates how metagenomic sequencing within a spatial epidemiology framework can be used to address questions surrounding AMR complexity in natural ecosystems.
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13
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Murray MH, Fidino M, Fyffe R, Byers KA, Pettengill JB, Sondgeroth KS, Killion H, Magle SB, Rios MJ, Ortinau N, Santymire RM. City sanitation and socioeconomics predict rat zoonotic infection across diverse neighbourhoods. Zoonoses Public Health 2020; 67:673-683. [PMID: 32583624 DOI: 10.1111/zph.12748] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/11/2020] [Accepted: 05/25/2020] [Indexed: 01/06/2023]
Abstract
Rat-associated zoonoses transmitted through faeces or urine are of particular concern for public health because environmental exposure in homes and businesses may be frequent and undetected. To identify times and locations with greater public health risks from rats, we investigated whether rat characteristics, environmental features, socioeconomic factors, or season could predict rat infection risk across diverse urban neighbourhoods. In partnership with a pest management company, we sampled rats in 13 community areas along an income gradient in Chicago, a large city where concern about rats has increased in recent years. We collected kidneys for Leptospira spp. testing and colon contents for aerobic bacteria such as Salmonella spp. and Escherichia coli. Of 202 sampled rats, 5% carried Leptospira spp. and 22% carried E. coli. Rats were significantly more likely to carry Leptospira spp. on blocks with more standing water complaints in higher-income neighbourhoods (OR = 6.74, 95% CI: 1.54-29.39). Rats were significantly more likely to carry E. coli on blocks with more food vendors (OR = 9.94, 2.27-43.50) particularly in low-income neighbourhoods (OR = 0.26, 0.09-0.82) and in the spring (OR = 15.96, 2.90-88.62). We detected a high diversity of E. coli serovars but none contained major virulence factors. These associations between environmental features related to sanitation and infection risk in rats support transmission through water for Leptospira spp. and faecal-oral transmission for E. coli. We also found opposing relationships between zoonotic infection risk and income for these two pathogens. Thus, our results highlight the importance of sanitation for predicting zoonotic disease risks and including diverse urban areas in pathogen surveillance to mitigate public health risks from rats.
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Affiliation(s)
- Maureen H Murray
- Department of Conservation and Science, Lincoln Park Zoo, Chicago, IL, USA
| | - Mason Fidino
- Department of Conservation and Science, Lincoln Park Zoo, Chicago, IL, USA
| | | | - Kaylee A Byers
- Department of Interdisciplinary Studies, University of British Columbia, Vancouver, BC, Canada.,Canadian Wildlife Health Cooperative, Animal Health Centre, Abbotsford, BC, Canada
| | - James B Pettengill
- Center for Food Safety and Applied Nutrition, United States Food and Drug Administration, College Park, MD, USA
| | | | | | - Seth B Magle
- Department of Conservation and Science, Lincoln Park Zoo, Chicago, IL, USA
| | - Maria Jazmin Rios
- Department of Conservation and Science, Lincoln Park Zoo, Chicago, IL, USA
| | - Nora Ortinau
- School of Public Health, University of Illinois at Chicago, Chicago, IL, USA
| | - Rachel M Santymire
- Department of Conservation and Science, Lincoln Park Zoo, Chicago, IL, USA
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14
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Nabil NM, Erfan AM, Tawakol MM, Haggag NM, Naguib MM, Samy A. Wild Birds in Live Birds Markets: Potential Reservoirs of Enzootic Avian Influenza Viruses and Antimicrobial Resistant Enterobacteriaceae in Northern Egypt. Pathogens 2020; 9:pathogens9030196. [PMID: 32155863 PMCID: PMC7157678 DOI: 10.3390/pathogens9030196] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/03/2020] [Accepted: 03/04/2020] [Indexed: 12/20/2022] Open
Abstract
Wild migratory birds are often implicated in the introduction, maintenance, and global dissemination of different pathogens, such as influenza A viruses (IAV) and antimicrobial-resistant (AMR) bacteria. Trapping of migratory birds during their resting periods at the northern coast of Egypt is a common and ancient practice performed mainly for selling in live bird markets (LBM). In the present study, samples were collected from 148 wild birds, representing 14 species, which were being offered for sale in LBM. All birds were tested for the presence of AIV and enterobacteriaceae. Ten samples collected from Northern Shoveler birds (Spatula clypeata) were positive for IAV and PCR sub-typing and pan HA/NA sequencing assays detected H5N8, H9N2, and H6N2 viruses in four, four, and one birds, respectively. Sequencing of the full haemagglutinin (HA) gene revealed a high similarity with currently circulating IAV in Egypt. From all the birds, E.coli was recovered from 37.2% and Salmonella from 20.2%, with 66%-96% and 23%-43% isolates being resistant to at least one of seven selected critically important antimicrobials (CIA), respectively. The presence of enzootic IAV and the wide prevalence of AMR enterobacteriaceae in wild birds highlight the potential role of LBM in the spread of different pathogens from and to wild birds. Continued surveillance of both AIV and antimicrobial-resistant enterobacteriaceae in wild birds' habitats is urgently needed.
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Affiliation(s)
- Nehal M. Nabil
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agricultural Research Center, Dokki, Giza 12618, Egypt; (N.M.N.); (A.M.E.); (M.M.T.); (N.M.H.); (M.M.N.)
| | - Ahmed M. Erfan
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agricultural Research Center, Dokki, Giza 12618, Egypt; (N.M.N.); (A.M.E.); (M.M.T.); (N.M.H.); (M.M.N.)
| | - Maram M. Tawakol
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agricultural Research Center, Dokki, Giza 12618, Egypt; (N.M.N.); (A.M.E.); (M.M.T.); (N.M.H.); (M.M.N.)
| | - Naglaa M. Haggag
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agricultural Research Center, Dokki, Giza 12618, Egypt; (N.M.N.); (A.M.E.); (M.M.T.); (N.M.H.); (M.M.N.)
| | - Mahmoud M. Naguib
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agricultural Research Center, Dokki, Giza 12618, Egypt; (N.M.N.); (A.M.E.); (M.M.T.); (N.M.H.); (M.M.N.)
- Zoonosis Science Center, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala SE-75185, Sweden
| | - Ahmed Samy
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agricultural Research Center, Dokki, Giza 12618, Egypt; (N.M.N.); (A.M.E.); (M.M.T.); (N.M.H.); (M.M.N.)
- Immunogenetics, The Pirbright Institute, Surrey GU24 0NF, UK
- Correspondence: or
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15
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Smith OM, Snyder WE, Owen JP. Are we overestimating risk of enteric pathogen spillover from wild birds to humans? Biol Rev Camb Philos Soc 2020; 95:652-679. [PMID: 32003106 PMCID: PMC7317827 DOI: 10.1111/brv.12581] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 01/08/2020] [Accepted: 01/13/2020] [Indexed: 01/07/2023]
Abstract
Enteric illnesses remain the second largest source of communicable diseases worldwide, and wild birds are suspected sources for human infection. This has led to efforts to reduce pathogen spillover through deterrence of wildlife and removal of wildlife habitat, particularly within farming systems, which can compromise conservation efforts and the ecosystem services wild birds provide. Further, Salmonella spp. are a significant cause of avian mortality, leading to additional conservation concerns. Despite numerous studies of enteric bacteria in wild birds and policies to discourage birds from food systems, we lack a comprehensive understanding of wild bird involvement in transmission of enteric bacteria to humans. Here, we propose a framework for understanding spillover of enteric pathogens from wild birds to humans, which includes pathogen acquisition, reservoir competence and bacterial shedding, contact with people and food, and pathogen survival in the environment. We place the literature into this framework to identify important knowledge gaps. Second, we conduct a meta‐analysis of prevalence data for three human enteric pathogens, Campylobacter spp., E. coli, and Salmonella spp., in 431 North American breeding bird species. Our literature review revealed that only 3% of studies addressed the complete system of pathogen transmission. In our meta‐analysis, we found a Campylobacter spp. prevalence of 27% across wild birds, while prevalence estimates of pathogenic E. coli (20%) and Salmonella spp. (6.4%) were lower. There was significant bias in which bird species have been tested, with most studies focusing on a small number of taxa that are common near people (e.g. European starlings Sturnus vulgaris and rock pigeons Columba livia) or commonly in contact with human waste (e.g. gulls). No pathogen prevalence data were available for 65% of North American breeding bird species, including many commonly in contact with humans (e.g. black‐billed magpie Pica hudsonia and great blue heron Ardea herodias), and our metadata suggest that some under‐studied species, taxonomic groups, and guilds may represent equivalent or greater risk to human infection than heavily studied species. We conclude that current data do not provide sufficient information to determine the likelihood of enteric pathogen spillover from wild birds to humans and thus preclude management solutions. The primary focus in the literature on pathogen prevalence likely overestimates the probability of enteric pathogen spillover from wild birds to humans because a pathogen must survive long enough at an infectious dose and be a strain that is able to colonize humans to cause infection. We propose that future research should focus on the large number of under‐studied species commonly in contact with people and food production and demonstrate shedding of bacterial strains pathogenic to humans into the environment where people may contact them. Finally, studies assessing the duration and intensity of bacterial shedding and survival of bacteria in the environment in bird faeces will help provide crucial missing information necessary to calculate spillover probability. Addressing these essential knowledge gaps will support policy to reduce enteric pathogen spillover to humans and enhance bird conservation efforts that are currently undermined by unsupported fears of pathogen spillover from wild birds.
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Affiliation(s)
- Olivia M Smith
- School of Biological Sciences, Washington State University, P.O. Box 644236, Pullman, WA, 99164, U.S.A
| | - William E Snyder
- Department of Entomology, Washington State University, 100 Dairy Road, P.O. Box 646382, Pullman, WA, 99164, U.S.A
| | - Jeb P Owen
- Department of Entomology, Washington State University, 100 Dairy Road, P.O. Box 646382, Pullman, WA, 99164, U.S.A
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16
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Zendri F, Maciuca IE, Moon S, Jones PH, Wattret A, Jenkins R, Baxter A, Timofte D. Occurrence of ESBL-Producing Escherichia coli ST131, Including the H30-Rx and C1-M27 Subclones, Among Urban Seagulls from the United Kingdom. Microb Drug Resist 2019; 26:697-708. [PMID: 32519936 DOI: 10.1089/mdr.2019.0351] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Antimicrobial resistance is a public health concern. Understanding any role that urban seagulls may have as a reservoir of resistant bacteria could be important for reducing transmission. This study investigated fecal Escherichia coli isolates from seagulls (herring gulls and lesser black-backed gulls) to determine the prevalence of extended-spectrum cephalosporin-resistant (ESC-R) and fluoroquinolone-resistant E. coli among gull species from two cities (Taunton and Birmingham) in the United Kingdom (UK). We characterized the genetic background and carriage of plasmid-mediated resistance genes in extended-spectrum β-lactamase (ESBL)-producing E. coli obtained from these birds. Sixty ESC-R E. coli isolates were obtained from 39 seagulls (39/78, 50%), of which 28 (28/60, 46.7%) were positive for plasmid-mediated CTX-M and/or AmpC β-lactamase resistance genes. Among these, blaCTX-M-15, blaCTX-M-14, and blaCMY-2 predominated. Three isolates belonging to the B2-ST131 clone were detected, of which two harbored blaCTX-M-15 (typed to C2/H30Rx) and one harbored blaCTX-M-27 and was typed to C1/H30-R (recently described as the C1-M27 sublineage). The plasmid-mediated quinolone resistance (PMQR) gene carriage prevalence (11.7%) consisted of aac(6')-Ib-cr and qnrB genes. No carbapenem or colistin resistance genes were detected. Urban seagulls in the UK are colonized and can spread major antimicrobial-resistant E. coli isolates harboring ESBL and PMQR determinants, including clinically important strains such as the pandemic clone B2-ST131 and the C1-M27 subclade. This is the first report of ST131-C1-M27 subclade in wildlife in the UK and in seagulls worldwide.
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Affiliation(s)
- Flavia Zendri
- Department of Veterinary Pathology and Public Health, Faculty of Health and Life Sciences, Institute of Veterinary Science, University of Liverpool, Neston, United Kingdom
| | - Iuliana E Maciuca
- Department of Veterinary Pathology and Public Health, Faculty of Health and Life Sciences, Institute of Veterinary Science, University of Liverpool, Neston, United Kingdom
| | - Simon Moon
- Somerset West and Taunton Council, Environmental Health, Taunton, United Kingdom
| | - Philip H Jones
- Department of Epidemiology and Population Health, Institute of Infection and Global Health, University of Liverpool, Neston, United Kingdom
| | - Andy Wattret
- Department of Veterinary Pathology and Public Health, Faculty of Health and Life Sciences, Institute of Veterinary Science, University of Liverpool, Neston, United Kingdom
| | - Richard Jenkins
- School of Allied Health Sciences, De Montfort University, Leicester, United Kingdom
| | - Andy Baxter
- Birdstrike Management Ltd., York, United Kingdom
| | - Dorina Timofte
- Department of Veterinary Pathology and Public Health, Faculty of Health and Life Sciences, Institute of Veterinary Science, University of Liverpool, Neston, United Kingdom
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17
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Wildlife Is Overlooked in the Epidemiology of Medically Important Antibiotic-Resistant Bacteria. Antimicrob Agents Chemother 2019; 63:AAC.01167-19. [PMID: 31209001 DOI: 10.1128/aac.01167-19] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Wild animals foraging in the human-influenced environment are colonized by bacteria with clinically important antibiotic resistance. The occurrence of such bacteria in wildlife is influenced by various biological, ecological, and geographical factors which have not yet been fully understood. More research focusing on the human-animal-environmental interface and using novel approaches is required to understand the role of wild animals in the transmission of antibiotic resistance and to assess potential risks for the public health.
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18
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Extended-Spectrum Beta-Lactamase (ESBL)-Producing Escherichia coli Isolated from Flies in the Urban Center of Berlin, Germany. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16091530. [PMID: 31052188 PMCID: PMC6539871 DOI: 10.3390/ijerph16091530] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/18/2019] [Accepted: 04/19/2019] [Indexed: 12/29/2022]
Abstract
Background: The monitoring of antimicrobial resistance (AMR) in microorganisms that circulate in the environment is an important topic of scientific research and contributes to the development of action plans to combat the spread of multidrug-resistant (MDR) bacteria. As a synanthropic vector for multiple pathogens and a reservoir for AMR, flies can be used for surveillance. Methods: We collected 163 flies in the inner city of Berlin and examined them for extended-spectrum β-lactamase (ESBL)-producing Escherichia coli genotypically and phenotypically. Results: The prevalence of ESBL-producing E. coli in flies was 12.9%. Almost half (47.6%) of the ESBL-positive samples showed a co-resistance to ciprofloxacin. Resistance to carbapenems or colistin was not detected. The predominant ESBL-type was CTX-M-1, which is associated with wildlife, livestock, and companion animals as a potential major source of transmission of MDR E. coli to flies. Conclusions: This field study confirms the permanent presence of ESBL-producing E. coli in an urban fly population. For continuous monitoring of environmental contamination with multidrug-resistant (MDR) bacteria, flies can be used as indicators without much effort.
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19
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Dolejska M, Papagiannitsis CC. Plasmid-mediated resistance is going wild. Plasmid 2018; 99:99-111. [PMID: 30243983 DOI: 10.1016/j.plasmid.2018.09.010] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 09/08/2018] [Accepted: 09/19/2018] [Indexed: 10/28/2022]
Abstract
Multidrug resistant (MDR) Gram-negative bacteria have been increasingly reported in humans, companion animals and farm animals. The growing trend of plasmid-mediated resistance to antimicrobial classes of critical importance is attributed to the emergence of epidemic plasmids, rapidly disseminating resistance genes among the members of Enterobacteriaceae family. The use of antibiotics to treat humans and animals has had a significant impact on the environment and on wild animals living and feeding in human-influenced habitats. Wildlife can acquire MDR bacteria selected in hospitals, community or livestock from diverse sources, including wastewater, sewage systems, landfills, farm facilities or agriculture fields. Therefore, wild animals are considered indicators of environmental pollution by antibiotic resistant bacteria, but they can also act as reservoirs and vectors spreading antibiotic resistance across the globe. The level of resistance and reported plasmid-mediated resistance mechanisms observed in bacteria of wildlife origin seem to correlate well with the situation described in humans and domestic animals. Additionaly, the identification of epidemic plasmids in samples from different human, animal and wildlife sources underlines the role of horizontal gene transfer in the dissemination of resistance genes. The present review focuses on reports of plasmid-mediated resistance to critically important antimicrobial classes such as broad-spectrum beta-lactams and colistin in Enterobacteriaceae isolates from samples of wildlife origin. The role of plasmids in the dissemination of ESBL-, AmpC- and carbapenemase-encoding genes as well as plasmid-mediated colistin resistance determinants in wildlife are discussed, and their similarities to plasmids previously identified in samples of human clinical or livestock origin are highlighted. Furthermore, we present features of completely sequenced plasmids reported from wildlife Enterobacteriaceae isolates, with special focus on genes that could be associated with the plasticity and stable maintenance of these molecules in antibiotic-free environments.
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Affiliation(s)
- Monika Dolejska
- Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic; CEITEC VFU, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic.
| | - Costas C Papagiannitsis
- Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic; CEITEC VFU, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic; Biomedical Center, Faculty of Medicine, Charles University, Pilsen, Czech Republic
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20
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Carter DL, Docherty KM, Gill SA, Baker K, Teachout J, Vonhof MJ. Antibiotic resistant bacteria are widespread in songbirds across rural and urban environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 627:1234-1241. [PMID: 30857088 DOI: 10.1016/j.scitotenv.2018.01.343] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 01/29/2018] [Accepted: 01/31/2018] [Indexed: 05/20/2023]
Abstract
The widespread use of antibiotics in human and veterinary medicine to treat pathogenic bacteria has resulted in the rapid emergence of antibiotic-resistant bacteria (ARB). Wild animals may enable the spread of pathogenic and non-pathogenic ARB when they are exposed to reservoirs (e.g., contaminated soil, water, or crops) and carry ARB in and on their bodies to other environments. We tested for the presence of ARB in four songbird species in southwest Michigan across a gradient of land use. Our specific objectives were to: 1) quantify the prevalence of ARB found in the gut microbiome of birds; 2) identify the specific bacteria exhibiting resistance; 3) assess whether ARB prevalence and identity varied among bird species; and 4) assess whether anthropogenic land use influenced the prevalence and identity of ARB found on birds. We sampled birds across a land use gradient consisting of urban, agricultural, and natural land covers using a randomized, spatially-balanced sampling design and cultured bacteria from fecal samples in the presence of three different antibiotics (amoxicillin, tetracycline, and ciprofloxacin). Overall prevalence of ARB was high, with 88% of total birds carrying ARB resistant to one of three antibiotics that we tested. Resistance to amoxicillin was more common (83% of sampled birds) than resistance to tetracycline (15%) or ciprofloxacin (1%). Identified ARB were diverse, and included 135 isolates representing 5 bacterial phyla and 22 genera. There was no effect of land use on ARB prevalence, with 90% of sampled birds captured in rural sites and 85% of sampled birds in urban sites carrying ARB. We provide the first analysis of ARB prevalence across multiple bird species and land uses utilizing a spatially-balanced, randomized study design. Our results demonstrate that nearly all sampled birds carried at least some ARB, and that they may serve as important dispersal agents of ARB across large spatial scales.
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Affiliation(s)
- Diana L Carter
- Department of Biological Sciences, Western Michigan University, Kalamazoo, MI 49008, United States
| | - Kathryn M Docherty
- Department of Biological Sciences, Western Michigan University, Kalamazoo, MI 49008, United States
| | - Sharon A Gill
- Department of Biological Sciences, Western Michigan University, Kalamazoo, MI 49008, United States
| | - Kathleen Baker
- Department of Geography, Western Michigan University, Kalamazoo, MI 49008, United States
| | - Jordan Teachout
- Department of Biological Sciences, Western Michigan University, Kalamazoo, MI 49008, United States
| | - Maarten J Vonhof
- Department of Biological Sciences, Western Michigan University, Kalamazoo, MI 49008, United States; Institute of the Environment and Sustainability, Western Michigan University, Kalamazoo, MI 49008, United States.
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Abstract
Humans and animals share the same bacterial species including the resistant ones. For that reason, epidemiological studies in domestic and wild animals should be performed on a regular basis. Wild, particularly migratory birds, should be investigated as potential carriers of antimicrobial resistant bacteria that can be spread globally in a short time. The aim of this study was to investigate the prevalence and to characterize multi-resistant Escherichia coli in wild birds. Three hundred and ninety two samples were obtained from different bird species including gulls (Larus spp.), mallards (Anas platyrhynchos), mute swans (Cygnus olor), as well as other species of birds. Phenotypical and genotypical resistance of E. coli was investigated. In total 60 isolates from 179 tested were resistant to three or more antimicrobial classes and treated as multi-resistant (33.5%; 95% CI 21.56–45.44); the isolates were obtained from gulls, mallards, swans, and rooks. All of the strains demonstrated resistance to aztreonam and cefpodoxime. The most frequent resistance prevalence of the above-mentioned isolates in vitro was also demonstrated to ampicillin (82%), ampicillin/sulbactam (68%), cefazolin (66%), ceftriaxone (55%), and ciprofloxacin (47%). All E. coli isolates were susceptible to amikacin. The results of polymerase chain reaction confirmed the presence of the genes encoding resistance to beta-lactams, aminoglycosides, tetracycline, amphenicols, trimethoprim, and sulphonamides. Consequently, wild birds might constitute a potential hazard to human and animal health by transmitting multi-resistant E. coli strains to waterways and other environmental sources via bird faeces.
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Zhang M, Shen Z, Rollins D, Fales W, Zhang S. Pilot Study of Antimicrobial Resistance in Northern Bobwhites (Colinus virginianus). Avian Dis 2018; 61:391-396. [PMID: 28957012 DOI: 10.1637/11629-031517-regr] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Antimicrobial resistance (AMR) is an important issue for both wildlife conservation and public health. The purpose of this study was to screen for AMR in fecal bacteria isolated from northern bobwhite (Colinus virginianus), a species that is an ecologically and economically important natural resource in the southern United States. The antimicrobial susceptibility profiles of 45 Escherichia coli isolates, 20 Enterococcus faecalis isolates, and 10 Enterococcus faecium isolates were determined using the SensititerTM microbroth dilution minimum inhibitory concentration (MIC) plate, AVIAN1F. Overall, E. coli isolates had high MIC values for the following classes of antimicrobials: aminocoumarins, beta-lactams, lincosamides, macrolides, florfenicol, and sulfonamides. Enterococcus faecalis and E. faecium isolates had high MICs for aminocyclitols, aminoglycosides, beta-lactams, lincosamides, and sulfonamides. Enterococcus faecalis isolates also showed high MICs for aminocoumarins, while E. faecium isolates had high MICs for trimethoprim/sulfamethoxazole and tetracycline. Based on available veterinary interpretive criteria, 15% and 33% of E. coli isolates were resistant to sulphathiazole and sulphadimethoxine, respectively. Intermediate susceptibility to florfenicol was seen with 17.8% of E. coli isolates. Twenty percent of E. faecalis and 80% of E. faecium isolates were resistant to high-concentration streptomycin. One third of E. faecalis and 70% of E. faecium isolates were intermediately susceptible to erythromycin. Ten percent of E. faecium isolates were resistant to tetracycline and oxytetracycline. A comparison of available MIC suggests that AMR in wild bobwhite is less severe than in domestic poultry. Further investigation is needed to determine the source of AMR in wild bobwhite.
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Affiliation(s)
- Michael Zhang
- A Department of Biomedical Sciences and Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211
| | - Zhenyu Shen
- B Department of Veterinary Pathobiology and Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211
| | - Dale Rollins
- C Rolling Plains Quail Research Foundation, Roby, TX 76956
| | - William Fales
- B Department of Veterinary Pathobiology and Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211
| | - Shuping Zhang
- B Department of Veterinary Pathobiology and Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211
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Alm EW, Daniels-Witt QR, Learman DR, Ryu H, Jordan DW, Gehring TM, Santo Domingo J. Potential for gulls to transport bacteria from human waste sites to beaches. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 615:123-130. [PMID: 28964987 PMCID: PMC6754825 DOI: 10.1016/j.scitotenv.2017.09.232] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 09/20/2017] [Accepted: 09/21/2017] [Indexed: 05/30/2023]
Abstract
Contamination of recreational beaches due to fecal waste from gulls complicates beach monitoring and may pose a risk to public health. Gulls that feed at human waste sites may ingest human fecal microorganisms associated with that waste. If these gulls also visit beaches, they may serve as vectors, transporting fecal microorganisms to the beach where they may subsequently contaminate sand and water. In this study, samples collected from landfills, treated wastewater storage lagoons, and public beaches demonstrated a spatial and temporal overlap of markers for gull and human-associated microorganisms. In addition, markers for gull, fecal indicator bacteria, and the human-associated marker, HF183, were detected in gull feces and cloacae samples. Further, HF183 was detected in cloacae samples from gulls that were documented by radio-telemetry traveling between human waste sites and public beaches. This study highlights the potential for gulls that visit human waste sites to disperse human-associated microorganisms in the beach landscape.
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Affiliation(s)
- Elizabeth W Alm
- Department of Biology & Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, MI 48859, United States.
| | - Quri R Daniels-Witt
- Department of Biology & Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, MI 48859, United States
| | - Deric R Learman
- Department of Biology & Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, MI 48859, United States
| | - Hodon Ryu
- U.S. Environmental Protection Agency, Office of Research and Development, Water Supply Water Resources Division, Cincinnati, OH 45268, United States
| | - Dustin W Jordan
- Department of Biology & Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, MI 48859, United States
| | - Thomas M Gehring
- Department of Biology & Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, MI 48859, United States
| | - Jorge Santo Domingo
- U.S. Environmental Protection Agency, Office of Research and Development, Water Supply Water Resources Division, Cincinnati, OH 45268, United States
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Abstract
Antibiotic resistance is a global public health issue of growing proportions. All antibiotics are susceptible to resistance. The evidence is now clear that the environment is the single largest source and reservoir of resistance. Soil, aquatic, atmospheric, animal-associated, and built ecosystems are home to microbes that harbor antibiotic resistance elements and the means to mobilize them. The diversity and abundance of resistance in the environment is consistent with the ancient origins of antibiotics and a variety of studies support a long natural history of associated resistance. The implications are clear: Understanding the evolution of resistance in the environment, its diversity, and mechanisms is essential to the management of our existing and future antibiotic resources.
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Affiliation(s)
- Matthew D Surette
- M.G. DeGroote Institute for Infectious Disease Research and.,Department of Biochemistry and Biomedical Sciences, DeGroote School of Medicine, McMaster University, Hamilton, Ontario L8N 4K1;
| | - Gerard D Wright
- M.G. DeGroote Institute for Infectious Disease Research and.,Department of Biochemistry and Biomedical Sciences, DeGroote School of Medicine, McMaster University, Hamilton, Ontario L8N 4K1;
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25
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King TL, Schmidt S. Assessment of three indigenous South African herbivores as potential reservoirs and vectors of antibiotic-resistant Escherichia coli. EUR J WILDLIFE RES 2017. [DOI: 10.1007/s10344-017-1100-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Alcalá L, Alonso CA, Simón C, González-Esteban C, Orós J, Rezusta A, Ortega C, Torres C. Wild Birds, Frequent Carriers of Extended-Spectrum β-Lactamase (ESBL) Producing Escherichia coli of CTX-M and SHV-12 Types. MICROBIAL ECOLOGY 2016; 72:861-869. [PMID: 26687342 DOI: 10.1007/s00248-015-0718-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 12/04/2015] [Indexed: 05/11/2023]
Abstract
To get a better insight into the role of birds as reservoirs of extended-spectrum β-lactamase (ESBL) and plasmidic AmpC β-lactamase (pAmpC) Escherichia coli producers, 100 fecal samples belonging to 15 different wild avian species from Northern Spain were analyzed. Cefotaxime-resistant (CTXR) E. coli isolates were identified in 16 of the 100 tested birds, which corresponded to 9 animal species (Gyps fulvus-griffon vulture, Larus michahellis-yellow-legged gull, Milvus migrans-black kite, Milvus milvus-red kite, Ciconia ciconia-white stork, Sturnus unicolor-spotless starling, Aquila chrysaetos-golden eagle, Cuculus canorus-common cuckoo, Tyto alba-barn owl). Fifteen isolates harbored ESBL or pAmpC-encoding genes (number of isolates): bla SHV-12 (9), bla CTX-M-1 (3), bla CTX-M-14 (2), and bla CMY-2 (1). The last CTXR isolate presented a -42-point-mutation in the chromosomal ampC promoter. Eleven out of 15 ESBL/pAmpC E. coli isolates were multiresistant (most common resistance phenotype: β-lactams-quinolones-tetracycline-sulfamethoxazole/trimethoprim). A plasmid-mediated quinolone resistance determinant (qnrS1) was identified in one E. coli from a barn owl. High genetic diversity was observed among ESBL/pAmpC E. coli isolates, with 12 different sequence types (STs), including several strains of STs frequently detected among human clinical isolates (ST38/D, ST131/B2, ST155/B1, ST10/A). The ST131 isolate belonged to the emergent ciprofloxacin-resistant H30R subclone. This study reveals a high percentage of bird as carriers of ESBL/pAmpC E. coli isolates in Spain, highlighting the elevated rate among storks, kites, and vultures. Wild birds can contribute to the global spread of ESBL/pAmpC-producing E. coli in natural ecosystems.
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Affiliation(s)
- Leticia Alcalá
- Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - Carla Andrea Alonso
- Área de Bioquímica y Biología Molecular, Universidad de La Rioja, Madre de Dios 51, 26006, Logroño, Spain
| | - Carmen Simón
- Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - Chabier González-Esteban
- Centro de Recuperación de Fauna Silvestre de La Alfranca, Departamento de Agricultura, Ganadería y Medio Ambiente, Gobierno de Aragón, Spain
| | - Jesús Orós
- Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - Antonio Rezusta
- Servicio de Microbiología, Hospital Universitario Miguel Servet, Zaragoza, Universidad de Zaragoza, IIS Aragón, Spain
| | - Carmelo Ortega
- Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - Carmen Torres
- Área de Bioquímica y Biología Molecular, Universidad de La Rioja, Madre de Dios 51, 26006, Logroño, Spain.
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27
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Delport TC, Power ML, Harcourt RG, Webster KN, Tetu SG. Colony Location and Captivity Influence the Gut Microbial Community Composition of the Australian Sea Lion (Neophoca cinerea). Appl Environ Microbiol 2016; 82:3440-3449. [PMID: 27037116 PMCID: PMC4959163 DOI: 10.1128/aem.00192-16] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 03/19/2016] [Indexed: 02/01/2023] Open
Abstract
UNLABELLED Gut microbiota play an important role in maintenance of mammalian metabolism and immune system regulation, and disturbances to this community can have adverse impacts on animal health. To better understand the composition of gut microbiota in marine mammals, fecal bacterial communities of the Australian sea lion (Neophoca cinerea), an endangered pinniped with localized distribution, were examined. A comparison of samples from individuals across 11 wild colonies in South and Western Australia and three Australian captive populations showed five dominant bacterial phyla: Firmicutes, Proteobacteria, Bacteroidetes, Actinobacteria, and Fusobacteria The phylum Firmicutes was dominant in both wild (76.4% ± 4.73%) and captive animals (61.4% ± 10.8%), while Proteobacteria contributed more to captive (29.3% ± 11.5%) than to wild (10.6% ± 3.43%) fecal communities. Qualitative differences were observed between fecal communities from wild and captive animals based on principal-coordinate analysis. SIMPER (similarity percentage procedure) analyses indicated that operational taxonomic units (OTU) from the bacterial families Clostridiaceae and Ruminococcaceae were more abundant in wild than in captive animals and contributed most to the average dissimilarity between groups (SIMPER contributions of 19.1% and 10.9%, respectively). Differences in the biological environment, the foraging site fidelity, and anthropogenic impacts may provide various opportunities for unique microbial establishment in Australian sea lions. As anthropogenic disturbances to marine mammals are likely to increase, understanding the potential for such disturbances to impact microbial community compositions and subsequently affect animal health will be beneficial for management of these vulnerable species. IMPORTANCE The Australian sea lion is an endangered species for which there is currently little information regarding disease and microbial ecology. In this work, we present an in-depth study of the fecal microbiota of a large number of Australian sea lions from geographically diverse wild and captive populations. Colony location and captivity were found to influence the gut microbial community compositions of these animals. Our findings significantly extend the baseline knowledge of marine mammal gut microbiome composition and variability.
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Affiliation(s)
- Tiffany C Delport
- Department of Biological Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Michelle L Power
- Department of Biological Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Robert G Harcourt
- Department of Biological Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Koa N Webster
- Department of Biological Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Sasha G Tetu
- Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, New South Wales, Australia
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28
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Abstract
Wild birds have been postulated as sentinels, reservoirs, and potential spreaders of antibiotic resistance. Antibiotic-resistant bacteria have been isolated from a multitude of wild bird species. Several studies strongly indicate transmission of resistant bacteria from human rest products to wild birds. There is evidence suggesting that wild birds can spread resistant bacteria through migration and that resistant bacteria can be transmitted from birds to humans and vice versa. Through further studies of the spatial and temporal distribution of resistant bacteria in wild birds, we can better assess their role and thereby help to mitigate the increasing global problem of antibiotic resistance.
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Affiliation(s)
- Jonas Bonnedahl
- Department of Infectious Diseases, Kalmar County Hospital, Sweden and Zoonotic Ecology and Epidemiology, Faculty of Health and Life Sciences, Linnaeus University, Kalmar, Sweden
| | - Josef D. Järhult
- Section for Infectious Diseases, Department of Medical Sciences, Uppsala University, Sweden
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29
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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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30
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Guenther S, Aschenbrenner K, Stamm I, Bethe A, Semmler T, Stubbe A, Stubbe M, Batsajkhan N, Glupczynski Y, Wieler LH, Ewers C. Comparable high rates of extended-spectrum-beta-lactamase-producing Escherichia coli in birds of prey from Germany and Mongolia. PLoS One 2012; 7:e53039. [PMID: 23300857 PMCID: PMC3534101 DOI: 10.1371/journal.pone.0053039] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Accepted: 11/22/2012] [Indexed: 11/18/2022] Open
Abstract
Frequent contact with human waste and liquid manure from intensive livestock breeding, and the increased loads of antibiotic-resistant bacteria that result, are believed to be responsible for the high carriage rates of ESBL-producing E. coli found in birds of prey (raptors) in Central Europe. To test this hypothesis against the influence of avian migration, we initiated a comparative analysis of faecal samples from wild birds found in Saxony-Anhalt in Germany and the Gobi-Desert in Mongolia, regions of dissimilar human and livestock population characteristics and agricultural practices. We sampled a total of 281 wild birds, mostly raptors with primarily north-to-south migration routes. We determined antimicrobial resistance, focusing on ESBL production, and unravelled the phylogenetic and clonal relatedness of identified ESBL-producing E. coli isolates using multi-locus sequence typing (MLST) and macrorestriction analyses. Surprisingly, the overall carriage rates (approximately 5%) and the proportion of ESBL-producers among E. coli (Germany: 13.8%, Mongolia: 10.8%) were similar in both regions. Whereas bla(CTX-M-1) predominated among German isolates (100%), bla(CTX-M-9) was the most prevalent in Mongolian isolates (75%). We identified sequence types (STs) that are well known in human and veterinary clinical ESBL-producing E. coli (ST12, ST117, ST167, ST648) and observed clonal relatedness between a Mongolian avian ESBL-E. coli (ST167) and a clinical isolate of the same ST that originated in a hospitalised patient in Europe. Our data suggest the influence of avian migratory species in the transmission of ESBL-producing E. coli and challenge the prevailing assumption that reducing human influence alone invariably leads to lower rates of antimicrobial resistance.
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Affiliation(s)
- Sebastian Guenther
- Veterinary Faculty, Institute of Microbiology and Epizootics, Freie Universität Berlin, Berlin, Germany.
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31
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Carlos C, Alexandrino F, Stoppe NC, Sato MIZ, Ottoboni LMM. Use of Escherichia coli BOX-PCR fingerprints to identify sources of fecal contamination of water bodies in the State of São Paulo, Brazil. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2012; 93:38-43. [PMID: 22054569 DOI: 10.1016/j.jenvman.2011.08.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Revised: 08/10/2011] [Accepted: 08/12/2011] [Indexed: 05/31/2023]
Abstract
Repetitive element sequence-based polymerase chain reaction (rep-PCR) is one of the commonest methods used to identify sources of fecal contamination of water systems. In this work, BOX-A1R-based repetitive extragenic palindromic-PCR (BOX-PCR) was used to discriminate Escherichia coli strains originating from different animals and water sources, and the suitability of the technique for bacterial source tracking (BST) was evaluated. A total of 214 strains from humans, 150 strains from animals, 55 strains from sewage and 77 strains from water bodies were analyzed by the BOX-PCR technique. When maximum similarity between the fingerprints was used, a correct classification rate of 84% was achieved for strains from human and animal sources. Furthermore, 95% of the strains found in sewage were classified as being from human sources by at least one of the four classification tools used. Classification of the strains found in water bodies in the State of São Paulo was based on the fingerprints obtained for human and animal sources. Most of the sampling sites appeared to be affected by mixed sources of fecal contamination. The use of BOX-PCR for BST could be especially valuable in developing countries, where simplicity and cost are important considerations.
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Affiliation(s)
- Camila Carlos
- Center for Molecular Biology and Genetic Engineering, State University of Campinas, UNICAMP, C. P. 6010, CEP 13083-875, Campinas, S. P., Brazil
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32
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Guenther S, Ewers C, Wieler LH. Extended-Spectrum Beta-Lactamases Producing E. coli in Wildlife, yet Another Form of Environmental Pollution? Front Microbiol 2011; 2:246. [PMID: 22203818 PMCID: PMC3244693 DOI: 10.3389/fmicb.2011.00246] [Citation(s) in RCA: 240] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Accepted: 11/23/2011] [Indexed: 11/13/2022] Open
Abstract
Wildlife is normally not exposed to clinically used antimicrobial agents but can acquire antimicrobial resistant bacteria through contact with humans, domesticated animals and the environment, where water polluted with feces seems to be the most important vector. Escherichia coli, an ubiquitous commensal bacterial species colonizing the intestinal tract of mammals and birds, is also found in the environment. Extended-spectrum beta-lactamases producing E. coli (ESBL-E. coli) represent a major problem in human and veterinary medicine, particular in nosocomial infections. Additionally an onset of community-acquired ESBL-E. coli infections and an emergence in livestock farming has been observed in recent years, suggesting a successful transmission as well as persistence of ESBL-E. coli strains outside clinical settings. Another parallel worldwide phenomenon is the spread of ESBL-E. coli into the environment beyond human and domesticated animal populations, and this seems to be directly influenced by antibiotic practice. This might be a collateral consequence of the community-onset of ESBL-E. coli infections but can result (a) in a subsequent colonization of wild animal populations which can turn into an infectious source or even a reservoir of ESBL-E. coli, (b) in a contribution of wildlife to the spread and transmission of ESBL-E. coli into fragile environmental niches, (c) in new putative infection cycles between wildlife, domesticated animals and humans, and (d) in problems in the medical treatment of wildlife. This review aims to summarize the current knowledge on ESBL-E. coli in wildlife, in turn underlining the need for more large scale investigations, in particular sentinel studies to monitor the impact of multiresistant bacteria on wildlife.
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Affiliation(s)
- Sebastian Guenther
- Institute of Microbiology and Epizootics, Freie Universität Berlin Berlin, Germany
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33
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Martiny AC, Martiny JBH, Weihe C, Field A, Ellis JC. Functional metagenomics reveals previously unrecognized diversity of antibiotic resistance genes in gulls. Front Microbiol 2011; 2:238. [PMID: 22347872 PMCID: PMC3275322 DOI: 10.3389/fmicb.2011.00238] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Accepted: 11/11/2011] [Indexed: 11/17/2022] Open
Abstract
Wildlife may facilitate the spread of antibiotic resistance (AR) between human-dominated habitats and the surrounding environment. Here, we use functional metagenomics to survey the diversity and genomic context of AR genes in gulls. Using this approach, we found a variety of AR genes not previously detected in gulls and wildlife, including class A and C β-lactamases as well as six tetracycline resistance gene types. An analysis of the flanking sequences indicates that most of these genes are present in Enterobacteriaceae and various Gram-positive bacteria. In addition to finding known gene types, we detected 31 previously undescribed AR genes. These undescribed genes include one most similar to an uncharacterized gene in Verrucomicrobium and another to a putative DNA repair protein in Lactobacillus. Overall, the study more than doubled the number of clinically relevant AR gene types known to be carried by gulls or by wildlife in general. Together with the propensity of gulls to visit human-dominated habitats, this high diversity of AR gene types suggests that gulls could facilitate the spread of AR.
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Affiliation(s)
- Adam C Martiny
- Department of Earth System Science, University of California Irvine, CA, USA
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34
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Fourier transform infrared microspectroscopy as a bacterial source tracking tool to discriminate fecal E. coli strains. Microchem J 2011. [DOI: 10.1016/j.microc.2011.03.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Meerburg BG, Koene MGJ, Kleijn D. Escherichia coli concentrations in feces of geese, coots, and gulls residing on recreational water in The Netherlands. Vector Borne Zoonotic Dis 2011; 11:601-3. [PMID: 21548761 DOI: 10.1089/vbz.2010.0218] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Contamination of recreational water by bird feces is a main concern of water managers. It is important to understand the sources of Escherichia coli contamination since the organism is frequently used as a water hygiene parameter. Here, we address presence and levels of E. coli in fecal shedding from several waterfowl (25 geese, 20 coots, and 40 gulls) and demonstrate that there is a bird species variation. Results indicate that gull feces contain a greater average concentration of E. coli per gram than do geese or coot feces. However, contamination risks also depends on bird abundance. These are important aspects for effective water bird management.
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Affiliation(s)
- Bastiaan G Meerburg
- Wageningen University & Research Centre, Plant Research International B.V, Wageningen, The Netherlands.
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36
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Rose JM, Gast RJ, Bogomolni A, Ellis JC, Lentell BJ, Touhey K, Moore M. Occurrence and patterns of antibiotic resistance in vertebrates off the Northeastern United States coast. FEMS Microbiol Ecol 2009; 67:421-31. [PMID: 19187217 DOI: 10.1111/j.1574-6941.2009.00648.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The prevalence of antibiotic-resistant bacteria in the marine environment is a growing concern, but the degree to which marine mammals, seabirds and fish harbor these organisms is not well documented. This project sought to identify the occurrence and patterns of antibiotic resistance in bacteria isolated from vertebrates of coastal waters in the northeastern United States. Four hundred and seventy-two isolates of clinical interest were tested for resistance to a suite of 16 antibiotics. Fifty-eight percent were resistant to at least one antibiotic, while 43% were resistant to multiple antibiotics. A multiple antibiotic resistance index value >or=0.2 was observed in 38% of the resistant pathogens, suggesting exposure of the animals to bacteria from significantly contaminated sites. Groups of antibiotics were identified for which bacterial resistance commonly co-occurred. Antibiotic resistance was more widespread in bacteria isolated from seabirds than marine mammals, and was more widespread in stranded or bycaught marine mammals than live marine mammals. Structuring of resistance patterns based on sample type (live/stranded/bycaught) but not animal group (mammal/bird/fish) was observed. These data indicate that antibiotic resistance is widespread in marine vertebrates, and they may be important reservoirs of antibiotic-resistant bacteria in the marine environment.
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Affiliation(s)
- Julie M Rose
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA.
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Kaufman GE, Epstein JH, Paul-Murphy J, Modrall JD. Designing graduate training programs in conservation medicine-producing the right professionals with the right tools. ECOHEALTH 2008; 5:519-527. [PMID: 19212790 PMCID: PMC7087785 DOI: 10.1007/s10393-008-0208-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2007] [Revised: 11/11/2008] [Accepted: 11/14/2008] [Indexed: 05/26/2023]
Abstract
New challenges to human, animal, and ecosystem health demand novel solutions: New diseases are emerging from new configurations of humans, their domestic animals and wildlife; new pressures on once robust and resilient ecosystems are compromising their integrity; synthetic compounds and engineered organisms, new to the natural world, are spreading unpredictably around the globe. Globalization provides opportunities for infectious organisms to gain access to new hosts, changing in distribution and virulence. What type of training should be developed to provide professionals with the right tools to meet these challenges? In this article, we offer recommendations for developing academic programs in conservation medicine. We discuss the need for, and the advantages to, using a conservation medicine approach to address real world situations and present illustrations of how this is applied today. We suggest a core set of skills that are needed in a conservation medicine practitioner, and recommend key considerations for designing new conservation medicine training programs. We review existing programs that offer conservation medicine content, and provide examples of where opportunities exist for those interested in pursuing a conservation medicine career.
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Affiliation(s)
- Gretchen E Kaufman
- Tufts Center for Conservation Medicine, Cummings School of Veterinary Medicine, Tufts University, 200 Westboro Road, North Grafton, MA 01536, USA.
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