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Mencía-Gutiérrez A, García-Peña FJ, González F, Pastor-Tiburón N, Pérez-Cobo I, Marín M, Martín-Maldonado B. Exploring the Prevalence and Resistance of Campylobacter in Urban Bird Populations. Vet Sci 2024; 11:210. [PMID: 38787182 PMCID: PMC11125644 DOI: 10.3390/vetsci11050210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/26/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024] Open
Abstract
The increasing urbanization of ecosystems has had a significant impact on wildlife over the last few years. Species that find an unlimited supply of food and shelter in urban areas have thrived under human presence. Wild birds have been identified as amplifying hosts and reservoirs of Campylobacter worldwide, but the information about its transmission and epidemiology is still limited. This study assessed the prevalence of Campylobacter in 137 urban birds admitted at a wildlife rescue center, with 18.8% of individuals showing positive. C. jejuni was the most frequent species (82.6%), followed by C. coli and C. lari (4.3% each). The order Passeriformes (33.3%) showed significant higher presence of Campylobacter when compared to orders Columbiformes (0%) and Ciconiiformes (17.6%), as well as in samples collected during the summer season (31.9%), from omnivorous species (36.8%) and young individuals (26.8%). Globally, Campylobacter displayed a remarkable resistance to ciprofloxacin (70.6%), tetracycline (64.7%), and nalidixic acid (52.9%). In contrast, resistance to streptomycin was low (5.8%), and all the isolates showed susceptibility to erythromycin and gentamycin. The results underline the importance of urban birds as reservoirs of thermophilic antimicrobial-resistant Campylobacter and contribute to enhancing the knowledge of its distribution in urban and peri-urban ecosystems.
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Affiliation(s)
- Aida Mencía-Gutiérrez
- Department of Animal Physiology, Faculty of Veterinary Sciences, Complutense University of Madrid, 28040 Madrid, Spain
| | | | - Fernando González
- Grupo de Rehabilitación de la Fauna Autóctona y su Hábitat (GREFA), 28220 Majadahonda, Spain
- Department of Pharmacology and Toxicology, Faculty of Veterinary Sciences, Complutense University of Madrid, 28040 Madrid, Spain
| | - Natalia Pastor-Tiburón
- Grupo de Rehabilitación de la Fauna Autóctona y su Hábitat (GREFA), 28220 Majadahonda, Spain
| | - Iratxe Pérez-Cobo
- Laboratorio Central de Veterinaria, Ministerio de Agricultura, Pesca y Alimentación, 28110 Algete, Spain
| | - María Marín
- Department of Nutrition and Food Science, Faculty of Veterinary Sciences, Complutense University of Madrid, 28040 Madrid, Spain
| | - Bárbara Martín-Maldonado
- Department of Veterinary Medicine, School of Biomedical and Health Sciences, Universidad Europea de Madrid, 28670 Villaviciosa de Odón, Spain;
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Olvera-Ramírez AM, McEwan NR, Stanley K, Nava-Diaz R, Aguilar-Tipacamú G. A Systematic Review on the Role of Wildlife as Carriers and Spreaders of Campylobacter spp. Animals (Basel) 2023; 13:ani13081334. [PMID: 37106897 PMCID: PMC10135385 DOI: 10.3390/ani13081334] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Campylobacter spp. are important zoonotic pathogens and can cause one of the main bacterial diarrheal diseases worldwide. Research in the context of infection arising from transmission from other humans and other vertebrates has been extensive. A large fraction of these investigations has focused on domestic animals; however, there are also a number of publications which either totally, or at least in part, consider the role of wild or feral animals as carriers or spreaders of Campylobacter spp. Here, we carry out a systematic review to explore the role played by wild vertebrates as sources of Campylobacter spp. with a compilation of prevalence data for more than 150 species including reptiles, mammals and birds. We found that numerous vertebrate species can act as carriers of Campylobacter species, but we also found that some host specificity may exist, reducing the risk of spread from wildlife to domestic animals or humans.
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Affiliation(s)
- Andrea Margarita Olvera-Ramírez
- Cuerpo Académico Salud Animal y Microbiología Ambiental, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Avenida de las Ciencias S/N, Juriquilla, Delegación Santa Rosa Jáuregui, Querétaro C.P. 76230, Mexico
| | - Neil Ross McEwan
- School of Pharmacy and Life Sciences, Robert Gordon University, Aberdeen AB10 7GJ, UK
| | - Karen Stanley
- Department of Biosciences and Chemistry, Sheffield Hallam University City Campus, Howard Street, Sheffield S1 1WB, UK
| | - Remedios Nava-Diaz
- Posdoctoral CONACyT Program, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Avenida de las Ciencias S/N, Juriquilla, Delegación Santa Rosa Jáuregui, Querétaro C.P. 76230, Mexico
| | - Gabriela Aguilar-Tipacamú
- Cuerpo Académico Salud Animal y Microbiología Ambiental, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Avenida de las Ciencias S/N, Juriquilla, Delegación Santa Rosa Jáuregui, Querétaro C.P. 76230, Mexico
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Batista R, Saraiva M, Lopes T, Silveira L, Coelho A, Furtado R, Castro R, Correia CB, Rodrigues D, Henriques P, Lóio S, Soeiro V, da Costa PM, Oleastro M, Pista A. Genotypic and Phenotypic Characterization of Pathogenic Escherichia coli, Salmonella spp., and Campylobacter spp., in Free-Living Birds in Mainland Portugal. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:223. [PMID: 36612545 PMCID: PMC9819048 DOI: 10.3390/ijerph20010223] [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: 11/15/2022] [Revised: 12/16/2022] [Accepted: 12/18/2022] [Indexed: 06/17/2023]
Abstract
Birds are potential carriers of pathogens affecting humans and agriculture. Aiming to evaluate the occurrence of the top three most important foodborne pathogens in free-living birds in Portugal, we investigated 108 individual fecal samples from free-living birds and one pooled sample of gull feces (n = 50) for the presence of Escherichia coli (pathogenic and non-pathogenic), Salmonella spp. and Campylobacter spp. Virulence- and antimicrobial resistance- (AMR) associated genes were detected by PCR and Whole-Genome Sequencing (WGS), and phenotypic (serotyping and AMR profiles) characterization was performed. Overall, 8.9% of samples tested positive for pathogenic E. coli, 2.8% for Salmonella spp., and 9.9% for Campylobacter spp. AMR was performed on all pathogenic isolates and in a fraction of non-pathogenic E. coli, being detected in 25.9% of them. Ten of the tested E. coli isolates were multidrug-resistant (MDR), and seven of them were Extended-spectrum β-lactamase (ESBL) producers. Among Salmonella (n = 3) and Campylobacter (n = 9), only one strain of C. jejuni was identified as MDR. Most of the identified serotypes/sequence types had already been found to be associated with human disease. These results show that free-living birds in Portugal may act as carriers of foodborne pathogens linked to human disease, some of them resistant to critically important antimicrobials.
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Affiliation(s)
- Rita Batista
- Food Microbiology Laboratory, Food and Nutrition Department, National Institute of Health Doutor Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisbon, Portugal
| | - Margarida Saraiva
- Food Microbiology Laboratory, Food and Nutrition Department, Rua Alexandre Herculano 321, 4000-055 Oporto, Portugal
| | - Teresa Lopes
- Food Microbiology Laboratory, Food and Nutrition Department, Rua Alexandre Herculano 321, 4000-055 Oporto, Portugal
| | - Leonor Silveira
- National Reference Laboratory for Gastrointestinal Infections, Department of Infectious Diseases, National Institute of Health Doutor Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisbon, Portugal
| | - Anabela Coelho
- Food Microbiology Laboratory, Food and Nutrition Department, National Institute of Health Doutor Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisbon, Portugal
| | - Rosália Furtado
- Food Microbiology Laboratory, Food and Nutrition Department, National Institute of Health Doutor Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisbon, Portugal
| | - Rita Castro
- National Reference Laboratory for Gastrointestinal Infections, Department of Infectious Diseases, National Institute of Health Doutor Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisbon, Portugal
| | - Cristina Belo Correia
- Food Microbiology Laboratory, Food and Nutrition Department, National Institute of Health Doutor Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisbon, Portugal
| | - David Rodrigues
- ESAC-IPC, Coimbra College of Agriculture, Polytechnic of Coimbra, 3045-601 Coimbra, Portugal
- CEF, Forest Research Centre, Edifício Prof. Azevedo Gomes, ISA, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Pedro Henriques
- ESAC-IPC, Coimbra College of Agriculture, Polytechnic of Coimbra, 3045-601 Coimbra, Portugal
- Espaço de Visitação e Observação de Aves, 2600 Vila Franca de Xira, Portugal
| | - Sara Lóio
- Centro de Recuperação de Fauna do Parque Biológico de Gaia, Rua da Cunha, Avintes, 4430-812 Vila Nova de Gaia, Portugal
| | - Vanessa Soeiro
- Centro de Recuperação de Fauna do Parque Biológico de Gaia, Rua da Cunha, Avintes, 4430-812 Vila Nova de Gaia, Portugal
| | - Paulo Martins da Costa
- ICBAS—Institute of Biomedical Sciences Abel Salazar, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Oporto, Portugal
| | - Mónica Oleastro
- National Reference Laboratory for Gastrointestinal Infections, Department of Infectious Diseases, National Institute of Health Doutor Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisbon, Portugal
| | - Angela Pista
- National Reference Laboratory for Gastrointestinal Infections, Department of Infectious Diseases, National Institute of Health Doutor Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisbon, Portugal
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Ahmed NA, Gulhan T. Campylobacter in Wild Birds: Is It an Animal and Public Health Concern? Front Microbiol 2022; 12:812591. [PMID: 35222311 PMCID: PMC8867025 DOI: 10.3389/fmicb.2021.812591] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/14/2021] [Indexed: 11/17/2022] Open
Abstract
Campylobacteriosis continues to be one of the leading causes of foodborne bacterial zoonotic infections worldwide. Despite its public health importance, the status of this disease in wild birds and the possibility of transmission from wild birds to domestic animals and humans have not been clearly elucidated yet. This article reviews the available literature with the aim of making a comprehensive manuscript on this disease status in wild birds and the possibility of interspecies transmission. Campylobacter has been isolated from various species of wild birds worldwide, with C. jejuni being the most commonly isolated species. The prevalence of Campylobacter in wild birds may vary depending on several factors like geographical location, season, the bird’s health status, bird species, sample type, the method used, and ecological factors. Molecular studies over the past two to three decades have characterized Campylobacter strains isolated from wild birds and have come up with results that fall into two categories. The first are those that report overlapping strains among human, domestic animal, and wild bird isolates. The results of the studies under this category emphasize that wild birds carry strains of Campylobacter, which are indistinguishable from domestic animals and humans and are therefore an important public and animal health concern. In contrast, the studies under the second category highlight significant differences in Campylobacter population structure among these hosts. Despite the controversiality and the inadequacy of current research to draw a full conclusion, the role of wild birds in the epidemiology of Campylobacter should not be undermined as drug-resistant strains, especially resistance to tetracycline and fluoroquinolones, are increasingly documented. In addition, source attribution studies have linked human cases of Campylobacter infections to wild birds. Therefore, the role of wild birds in the epidemiology of Campylobacter infection should not be neglected. However, in order to determine disease status in wild birds and the precise role of wild birds in domestic animals and human health, detail-oriented epidemiological investigations characterizing the genetic relatedness of isolates from the respective species and environment through one health approach are warranted.
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Mencía-Gutiérrez A, Martín-Maldonado B, Pastor-Tiburón N, Moraleda V, González F, García-Peña FJ, Pérez-Cobo I, Revuelta L, Marín M. Prevalence and antimicrobial resistance of Campylobacter from wild birds of prey in Spain. Comp Immunol Microbiol Infect Dis 2021; 79:101712. [PMID: 34688167 DOI: 10.1016/j.cimid.2021.101712] [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] [Received: 04/27/2021] [Revised: 09/18/2021] [Accepted: 09/22/2021] [Indexed: 10/20/2022]
Abstract
Wild birds have been identified as a relevant reservoir of Campylobacter spp., therefore, a potential source of infection in humans and domestic animals. The objective of this study was to determine the occurrence of Campylobacter spp. on birds of prey in Spain. In addition, antibiotic resistance profiles of the isolates were evaluated. A total of 689 specimens of 28 raptor species were analyzed, with a resulting individual prevalence of 7.5%. C. jejuni was the most frequently isolated species (88.5%), followed by C. coli and C. lari (3.8% each). The occurrence of Campylobacter was significantly higher (p < 0.05) in nocturnal birds of prey (15.3%), in spring season (12.2%) and in carnivorous species (9.4%). Isolates displayed a remarkable resistance to nalidixic acid (69.9%), ciprofloxacin (69.9%), and tetracycline (55.6%), and a low resistance to streptomycin (6.7%). Our findings highlight the importance of birds of prey as reservoirs of Campylobacter strains and their significant role as carriers of antimicrobial resistance.
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Affiliation(s)
- Aida Mencía-Gutiérrez
- Department of Animal Physiology, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain; Grupo de Estudio de la Medicina y Conservación de la Fauna Silvestre (GEMAS), Spain.
| | - Bárbara Martín-Maldonado
- Grupo de Rehabilitación de la Fauna Autóctona y su Hábitat (GREFA), Monte del Pilar, Majadahonda, Madrid, Spain; Grupo de Estudio de la Medicina y Conservación de la Fauna Silvestre (GEMAS), Spain
| | - Natalia Pastor-Tiburón
- Grupo de Rehabilitación de la Fauna Autóctona y su Hábitat (GREFA), Monte del Pilar, Majadahonda, Madrid, Spain; Grupo de Estudio de la Medicina y Conservación de la Fauna Silvestre (GEMAS), Spain
| | - Virginia Moraleda
- Grupo de Rehabilitación de la Fauna Autóctona y su Hábitat (GREFA), Monte del Pilar, Majadahonda, Madrid, Spain; Grupo de Estudio de la Medicina y Conservación de la Fauna Silvestre (GEMAS), Spain
| | - Fernando González
- Grupo de Rehabilitación de la Fauna Autóctona y su Hábitat (GREFA), Monte del Pilar, Majadahonda, Madrid, Spain; Grupo de Estudio de la Medicina y Conservación de la Fauna Silvestre (GEMAS), Spain
| | | | - Iratxe Pérez-Cobo
- Laboratorio Central de Veterinaria (Ministerio de Agricultura, Pesca y Alimentación), Algete, Spain
| | - Luis Revuelta
- Department of Animal Physiology, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain; Grupo de Estudio de la Medicina y Conservación de la Fauna Silvestre (GEMAS), Spain
| | - María Marín
- Grupo de Estudio de la Medicina y Conservación de la Fauna Silvestre (GEMAS), Spain; Department of Nutrition and Food Science, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
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Vogt NA, Pearl DL, Taboada EN, Mutschall SK, Bondo KJ, Jardine CM. Epidemiology of Campylobacter jejuni in raccoons (Procyon lotor) on swine farms and in conservation areas in southern Ontario. Zoonoses Public Health 2020; 68:19-28. [PMID: 33226196 DOI: 10.1111/zph.12786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 09/02/2020] [Accepted: 10/21/2020] [Indexed: 11/30/2022]
Abstract
Campylobacter is a leading cause of foodborne illness in humans worldwide. Sources of infection are often difficult to identify, and are, generally, poorly understood. Recent work suggests that wildlife may represent a source of Campylobacter for human infections. Using a repeated cross-sectional study design, raccoons were trapped on five swine farms and five conservation areas in southern Ontario from 2011 to 2013. Our objectives were to: (a) assess the impact of seasonal, climatic, location, annual and raccoon demographic factors on the occurrence of Campylobacter jejuni in these animals; and (b) identify clusters of C. jejuni in space, time and space-time using spatial scan statistics. Multi-level multivariable logistic regression was used to examine the odds of isolating C. jejuni, with site and animal modelled as random intercepts. The following independent variables were examined: raccoon age and sex, year, location type, season, temperature and rainfall. A total of 1,096 samples were obtained from 627 raccoons; 46.3% were positive for C. jejuni. The following interactions and their main effects were significant (p < .05) and retained in the final model: season × temperature, year × rainfall, year × temperature. Based on the results from our multivariable model and spatial scan statistics, climatic variables (i.e. rainfall, temperature and season) were associated with the carriage of C. jejuni by raccoons, but the effects were not consistent, and varied by location and year. Although raccoons may pose a zoonotic risk due to their carriage of Campylobacter, further work is required to characterize the transmission and movement of this microorganism within the ecosystem.
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Affiliation(s)
- Nadine A Vogt
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - David L Pearl
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Eduardo N Taboada
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada
| | - Steven K Mutschall
- National Centre for Animal Diseases, Canadian Food Inspection Agency, Lethbridge, AB, Canada
| | - Kristin J Bondo
- Department of Natural Resources Management, Texas Tech University, Lubbock, TX, USA
| | - Claire M Jardine
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada.,Canadian Wildlife Health Cooperative, University of Guelph, Guelph, ON, Canada
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Marotta F, Janowicz A, Di Marcantonio L, Ercole C, Di Donato G, Garofolo G, Di Giannatale E. Molecular Characterization and Antimicrobial Susceptibility of C. jejuni Isolates from Italian Wild Bird Populations. Pathogens 2020; 9:E304. [PMID: 32326051 PMCID: PMC7238051 DOI: 10.3390/pathogens9040304] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/17/2020] [Accepted: 04/17/2020] [Indexed: 12/11/2022] Open
Abstract
Poultry is considered a major reservoir of human campylobacteriosis. It also been reported that not only poultry, but also wild birds, are capable of carrying C. jejuni, thus demonstrating to be a risk of spreading the bacteria in the environment. To gain insight into the population structure and investigate the antimicrobial resistance genotypes and phenotypes, we analyzed a collection of 135 C. jejuni from 15 species of wild birds in Italy. MLST revealed the presence of 41 sequence types (STs) and 13 clonal complexes (CCs). ST-179 complex and the generalist ST-45 complex were the most prevalent. Core genome MLST revealed that C. jejuni from ST-45 complex clustered according to the bird species, unlike the ST-179 complex which featured 3 different species in the same cluster. Overall we found a moderate prevalence of resistance to tetracycline (12.5%), ciprofloxacin and nalidixic acid (10%). The novel ST isolated from one pigeon showed resistance to all the antibiotics tested. The ST-179 complex (33.3%) was identified with significantly higher nalidixic acid resistance relative to other tested STs. Nine AMR genes (tet(O), cmeA, cmeB, cmeC, cmeR, aad, blaOXA-61, blaOXA-184 and erm(B)) and 23S rRNA and gyrA-associated point mutations were also described, indicating a concordance level between genotypic and phenotypic resistance of 23.3%, 23.4% and of 37.5% for streptomycin, tetracycline and quinolones/fluoroquinolones, respectively. We recommend that particular attention should be given to wild birds as key sentinel animals for the ecosystem contamination surveillance.
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Affiliation(s)
- Francesca Marotta
- Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “G. Caporale”, National Reference Laboratory for Campylobacter, 64100 Teramo, Italy; (A.J.); (L.D.M.); (G.D.D.); (G.G.); (E.D.G.)
| | - Anna Janowicz
- Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “G. Caporale”, National Reference Laboratory for Campylobacter, 64100 Teramo, Italy; (A.J.); (L.D.M.); (G.D.D.); (G.G.); (E.D.G.)
| | - Lisa Di Marcantonio
- Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “G. Caporale”, National Reference Laboratory for Campylobacter, 64100 Teramo, Italy; (A.J.); (L.D.M.); (G.D.D.); (G.G.); (E.D.G.)
| | - Claudia Ercole
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy;
| | - Guido Di Donato
- Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “G. Caporale”, National Reference Laboratory for Campylobacter, 64100 Teramo, Italy; (A.J.); (L.D.M.); (G.D.D.); (G.G.); (E.D.G.)
| | - Giuliano Garofolo
- Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “G. Caporale”, National Reference Laboratory for Campylobacter, 64100 Teramo, Italy; (A.J.); (L.D.M.); (G.D.D.); (G.G.); (E.D.G.)
| | - Elisabetta Di Giannatale
- Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “G. Caporale”, National Reference Laboratory for Campylobacter, 64100 Teramo, Italy; (A.J.); (L.D.M.); (G.D.D.); (G.G.); (E.D.G.)
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Tryjanowski P, Nowakowski JJ, Indykiewicz P, Andrzejewska M, Śpica D, Sandecki R, Mitrus C, Goławski A, Dulisz B, Dziarska J, Janiszewski T, Minias P, Świtek S, Tobolka M, Włodarczyk R, Szczepańska B, Klawe JJ. Campylobacter in wintering great tits Parus major in Poland. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:7570-7577. [PMID: 31885068 DOI: 10.1007/s11356-019-07502-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 12/22/2019] [Indexed: 06/10/2023]
Abstract
Domestic and wild mammals, domestic birds and particularly wild birds are considered to be reservoirs of many species of Enterobacteriaceae, and also important human enteric pathogens, e.g., the bacteria of the genus Campylobacter that occur in their digestive tracts. These species may be vectors of antimicrobial resistance dissemination in the environment, because they may have contact with an environment contaminated with antibiotics. Bird feeders have been suggested as potential dispersal centres between wild wintering birds whose feeding is supported by humans. Therefore, we checked for the presence of Campylobacter bacteria among great tits Parus major, the most common bird species on bird feeders in Poland. Samples (n = 787 cloacal swabs) were collected in urban and rural areas of Poland. Bacterial species were identified using multiplex PCR, and 23 (2.9%) positive tests for Campylobacter spp. were found; in ten samples, C. jejuni was detected. The odds ratio of Campylobacter infection in rural birds was over 2.5 times higher than urban birds. Ten samples with C. jejuni were tested for antibiotic resistance, and all were sensitive to azithromycin, erythromycin and gentamycin, while six isolates were resistant to tetracycline, and five were resistant to ciprofloxacin. Four Campylobacter isolates were resistant to both these antibiotics.
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Affiliation(s)
- Piotr Tryjanowski
- Institute of Zoology, Poznań University of Life Sciences, Wojska Polskiego 71C, 60-625, Poznań, Poland.
| | - Jacek J Nowakowski
- Department of Ecology and Environmental Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 3, 10-727, Olsztyn, Poland
| | - Piotr Indykiewicz
- Department of Biology and Animal Environment, University of Technology and Life Sciences, Ks. A. Kordeckiego 20, 85-225, Bydgoszcz, Poland
| | - Małgorzata Andrzejewska
- Department of Hygiene, Epidemiology and Ergonomics, Nicolaus Copernicus University, M. Curie Skłodowskiej 9, 85-094, Bydgoszcz, Poland
| | - Dorota Śpica
- Department of Hygiene, Epidemiology and Ergonomics, Nicolaus Copernicus University, M. Curie Skłodowskiej 9, 85-094, Bydgoszcz, Poland
| | | | - Cezary Mitrus
- Department of Vertebrate Ecology and Paleontology, Institute of Biology, Wrocław University of Environmental and Life Sciences, Chełmońskiego 38c, 51-631, Wrocław, Poland
| | - Artur Goławski
- Department of Zoology, Siedlce University of Natural Sciences and Humanities, Prusa 12, 08-110, Siedlce, Poland
| | - Beata Dulisz
- Department of Ecology and Environmental Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 3, 10-727, Olsztyn, Poland
| | - Joanna Dziarska
- Institute of Zoology, Poznań University of Life Sciences, Wojska Polskiego 71C, 60-625, Poznań, Poland
| | - Tomasz Janiszewski
- Department of Teacher Training and Biodiversity Studies, University of Łódź, Banacha 1/3, 90-237, Łódź, Poland
| | - Piotr Minias
- Department of Teacher Training and Biodiversity Studies, University of Łódź, Banacha 1/3, 90-237, Łódź, Poland
| | - Stanisław Świtek
- Institute of Zoology, Poznań University of Life Sciences, Wojska Polskiego 71C, 60-625, Poznań, Poland
| | - Marcin Tobolka
- Institute of Zoology, Poznań University of Life Sciences, Wojska Polskiego 71C, 60-625, Poznań, Poland
| | - Radosław Włodarczyk
- Department of Teacher Training and Biodiversity Studies, University of Łódź, Banacha 1/3, 90-237, Łódź, Poland
| | - Bernadeta Szczepańska
- Department of Hygiene, Epidemiology and Ergonomics, Nicolaus Copernicus University, M. Curie Skłodowskiej 9, 85-094, Bydgoszcz, Poland
| | - Jacek J Klawe
- Department of Hygiene, Epidemiology and Ergonomics, Nicolaus Copernicus University, M. Curie Skłodowskiej 9, 85-094, Bydgoszcz, Poland
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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: 44] [Impact Index Per Article: 11.0] [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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