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Damborg P, Pirolo M, Schøn Poulsen L, Frimodt-Møller N, Guardabassi L. Dogs Can Be Reservoirs of Escherichia coli Strains Causing Urinary Tract Infection in Human Household Contacts. Antibiotics (Basel) 2023; 12:1269. [PMID: 37627689 PMCID: PMC10451620 DOI: 10.3390/antibiotics12081269] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/06/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
This study aimed to investigate the role played by pets as reservoirs of Escherichia coli strains causing human urinary tract infections (UTIs) in household contacts. Among 119 patients with community-acquired E. coli UTIs, we recruited 19 patients who lived with a dog or a cat. Fecal swabs from the household pet(s) were screened by antimicrobial selective culture to detect E. coli displaying the resistance profile of the human strain causing UTI. Two dogs shed E. coli isolates indistinguishable from the UTI strain by pulsed-field gel electrophoresis. Ten months later, new feces from these dogs and their owners were screened selectively and quantitatively for the presence of the UTI strain, followed by core-genome phylogenetic analysis of all isolates. In one pair, the resistance phenotype of the UTI strain occurred more frequently in human (108 CFU/g) than in canine feces (104 CFU/g), and human fecal isolates were more similar (2-7 SNPs) to the UTI strain than canine isolates (83-86 SNPs). In the other pair, isolates genetically related to the UTI strain (23-40 SNPs) were only detected in canine feces (105 CFU/g). These results show that dogs can be long-term carriers of E. coli strains causing UTIs in human household contacts.
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Affiliation(s)
- Peter Damborg
- Department of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark; (P.D.); (M.P.); (L.S.P.)
| | - Mattia Pirolo
- Department of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark; (P.D.); (M.P.); (L.S.P.)
| | - Laura Schøn Poulsen
- Department of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark; (P.D.); (M.P.); (L.S.P.)
| | | | - Luca Guardabassi
- Department of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark; (P.D.); (M.P.); (L.S.P.)
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Affiliation(s)
- Bente Olesen
- Department of Clinical Microbiology, Herlev and Gentofte Hospital, University of Copenhagen, Denmark
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Reid SA, McKenzie J, Woldeyohannes SM. One Health research and training in Australia and New Zealand. Infect Ecol Epidemiol 2016; 6:33799. [PMID: 27906122 PMCID: PMC5131460 DOI: 10.3402/iee.v6.33799] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 10/26/2016] [Accepted: 10/27/2016] [Indexed: 12/01/2022] Open
Abstract
Purpose of the review This review was performed to create a repository of information on One Health research and training in Australia and New Zealand (ANZ). The review sought to determine 1) how many training activities there are in ANZ, 2) how much research on zoonotic diseases is undertaken by multidisciplinary teams, and 3) how collaborative and integrated they are. Recent findings There are few opportunities for training in One Health in ANZ. The majority require enrolment in a postgraduate degree programme, and there is only one postgraduate level course that is also available for continuing professional development (CPD). Of the broad range of One Health research performed in ANZ, the majority is performed by teams with limited disciplinary diversity, although diversity is improving. Summary Progress has been made in building collaboration between human, animal, and environmental health professions. However, the lack of clearly defined competencies and agreed purpose for One Health may be impeding collaboration.
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Affiliation(s)
- Simon A Reid
- School of Public Health, The University of Queensland, Herston, Queensland, Australia;
| | - Joanna McKenzie
- Institute of Veterinary, Animal & Biomedical Sciences, Massey University, Palmerston North, New Zealand
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Ahmed LN, Price LB, Graham JP. An exploratory study of dog park visits as a risk factor for exposure to drug-resistant extra-intestinal pathogenic E. coli (ExPEC). BMC Res Notes 2015; 8:137. [PMID: 25886556 PMCID: PMC4397871 DOI: 10.1186/s13104-015-1103-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 03/31/2015] [Indexed: 11/22/2022] Open
Abstract
Background Extraintestinal pathogenic E. coli (ExPEC) are common causative agents of urinary tract infections in humans. Dogs have been found to harbor ExPEC. This study tested stool samples from dogs (n = 16), the shoes of dog park visitors (n = 16) and the shoes of controls (n = 16) for ExPEC. Phenotypic resistance of isolates was characterized. Findings ExPEC were present in one-third of the dog stool samples, 9% of the samples from the shoes of dog park visitors and 6% of control samples. Half of the ExPEC isolates were multi-drug resistant. Discussion The findings suggest that dogs may be an important source of antibiotic resistant ExPEC. Electronic supplementary material The online version of this article (doi:10.1186/s13104-015-1103-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lubna N Ahmed
- Department of Environmental & Occupational Health, Milken Institute School of Public Health, George Washington University, 950 New Hampshire Ave. NW, Washington, DC, 20052, USA.
| | - Lance B Price
- Department of Environmental & Occupational Health, Milken Institute School of Public Health, George Washington University, 950 New Hampshire Ave. NW, Washington, DC, 20052, USA.
| | - Jay P Graham
- Department of Environmental & Occupational Health, Milken Institute School of Public Health, George Washington University, 950 New Hampshire Ave. NW, Washington, DC, 20052, USA.
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Abstract
Pathogenic Escherichia coli strains cause a wide variety of intestinal and extraintestinal infections. The widespread geographical clonal dissemination of intestinal pathogenic E. coli strains, such as E. coli O157:H7, is well recognized, and its spread is most often attributed to contaminated food products. On the other hand, the clonal dissemination of extraintestinal pathogenic E. coli (ExPEC) strains is also recognized, but the mechanism of their spread is not well explained. Here, I describe major pandemic clonal lineages of ExPEC based on multilocus sequence typing (MLST), and discuss possible reasons for their global dissemination. These lineages include sequence type (ST)131, ST393, ST69, ST95, and ST73, which are all associated with both community-onset and healthcare-associated infections, in particular urinary tract infections and bloodstream infections. As with many other types of drug-resistant Gram-negative and Gram-positive bacterial infections, drug-resistant ExPEC infections are recognized to be caused by a limited set of clonal lineages. However, reported observations on these major pandemic lineages suggest that the resistance phenotype is not necessarily the determinant of their clonal dissemination. Both epidemiological factors and their intrinsic biological 'fitness' are likely to contribute. An important public health and clinical concern is that pandemicity itself may be a determinant of progressive drug resistance acquisition by clonal lineages. New research is urgently needed to better understand the epidemiological and biological causes of ExPEC pandemicity.
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Affiliation(s)
- L W Riley
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, CA, USA
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Guo S, Wakeham D, Brouwers HJM, Cobbold RN, Abraham S, Mollinger JL, Johnson JR, Chapman TA, Gordon DM, Barrs VR, Trott DJ. Human-associated fluoroquinolone-resistant Escherichia coli clonal lineages, including ST354, isolated from canine feces and extraintestinal infections in Australia. Microbes Infect 2015; 17:266-74. [PMID: 25576024 DOI: 10.1016/j.micinf.2014.12.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 12/23/2014] [Indexed: 10/24/2022]
Abstract
Phylogenetic group D extraintestinal pathogenic Escherichia coli (ExPEC), including O15:K52:H1 and clonal group A, have spread globally and become fluoroquinolone-resistant. Here we investigated the role of canine feces as a reservoir of these (and other) human-associated ExPEC and their potential as canine pathogens. We characterized and compared fluoroquinolone-resistant E. coli isolates originally identified as phylogenetic group D from either the feces of hospitalized dogs (n = 67; 14 dogs) or extraintestinal infections (n = 53; 33 dogs). Isolates underwent phylogenetic grouping, random amplified polymorphic DNA (RAPD) analysis, virulence genotyping, resistance genotyping, human-associated ExPEC O-typing, and multi-locus sequence typing. Five of seven human-associated sequence types (STs) exhibited ExPEC-associated O-types, and appeared in separate RAPD clusters. The largest subgroup (16 fecal, 26 clinical isolates) were ST354 (phylogroup F) isolates. ST420 (phylogroup B2); O1-ST38, O15:K52:H1-ST393, and O15:K1-ST130 (phylogroup D); and O7-ST457, and O1-ST648 (phylogroup F) were also identified. Three ST-specific RAPD sub-clusters (ST354, ST393, and ST457) contained closely related isolates from both fecal or clinical sources. Genes encoding CTX-M and AmpC β-lactamases were identified in isolates from five STs. Major human-associated fluoroquinolone-resistant ± extended-spectrum cephalosporin-resistant ExPEC of public health importance may be carried in dog feces and cause extraintestinal infections in some dogs.
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Affiliation(s)
- SiYu Guo
- School of Veterinary Science, The University of Queensland, Gatton, QLD 4343, Australia; Elizabeth Macarthur Agricultural Institute, New South Wales Department of Primary Industries, Woodbridge Road, NSW 2568, Australia
| | - David Wakeham
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, SA 5371, Australia
| | - Huub J M Brouwers
- Elizabeth Macarthur Agricultural Institute, New South Wales Department of Primary Industries, Woodbridge Road, NSW 2568, Australia
| | - Rowland N Cobbold
- School of Veterinary Science, The University of Queensland, Gatton, QLD 4343, Australia
| | - Sam Abraham
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, SA 5371, Australia
| | - Joanne L Mollinger
- School of Veterinary Science, The University of Queensland, Gatton, QLD 4343, Australia; Biosecurity Sciences Laboratory, Biosecurity Queensland, Department of Agriculture, Fisheries and Forestry, Coopers Plains QLD 4108, Australia
| | - James R Johnson
- Infectious Diseases (111F), VA Medical Center, 1 Veterans Drive, Minneapolis, MN 55417, USA
| | - Toni A Chapman
- Elizabeth Macarthur Agricultural Institute, New South Wales Department of Primary Industries, Woodbridge Road, NSW 2568, Australia
| | - David M Gordon
- School of Biology, The Australian National University, Acton, ACT 0200, Australia
| | - Vanessa R Barrs
- University Veterinary Teaching Hospital, Sydney, Faculty of Veterinary Science, The University of Sydney, NSW 2006, Australia
| | - Darren J Trott
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, SA 5371, Australia.
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