CTX-M-producing Escherichia coli Isolated from urban pigeons (Columba livia domestica) in Brazil
Introduction: Worldwide urban pigeons (Columba livia domestica) are an important reservoir of pathogenic and multidrug-resistant bacteria (MDR). Plasmids are key genetic elements in the dissemination of antimicrobial drug resistance in bacteria, including beta-lactams and quinolones, which are the...
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The Journal of Infection in Developing Countries
2019-11-01
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| Series: | Journal of Infection in Developing Countries |
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| Online Access: | https://jidc.org/index.php/journal/article/view/11441 |
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| author | Marcos Paulo Vieira Cunha Mirela Caroline Vilela Oliveira Maria Gabriela Xavier Oliveira Marcia Cristina Menão Terezinha Knöbl |
| author_facet | Marcos Paulo Vieira Cunha Mirela Caroline Vilela Oliveira Maria Gabriela Xavier Oliveira Marcia Cristina Menão Terezinha Knöbl |
| author_sort | Marcos Paulo Vieira Cunha |
| collection | DOAJ |
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Introduction: Worldwide urban pigeons (Columba livia domestica) are an important reservoir of pathogenic and multidrug-resistant bacteria (MDR). Plasmids are key genetic elements in the dissemination of antimicrobial drug resistance in bacteria, including beta-lactams and quinolones, which are the most important classes of drugs for treatment of Enterobacteriaceae infections in human and veterinary medicine. The aim of this study was to determine the presence of Escherichia coli (E. coli) harboring plasmids containing extend-spectrum (ESBL) and pAmpC beta-lactamases, also plasmid-mediated quinolone resistance (PMQR) genes in urban pigeons from São Paulo State, Brazil.
Methodology: A collection of 107 isolates of E. coli from urban pigeons from four cities was screened by antimicrobial resistance phenotypic and PCR for genes encoding ESBL, pAmpC and PMQR genes. Clonality was evaluated by ERIC-PCR.
Results: We found three strains positive for blaCTX-M genes. In two clonally related CTX-M-8-producing strains, the gene was associated with IncI1 plasmids. An MDR strain harboring blaCTX-M-2, the plasmid could not be transferred. No strain was positive for PMQR genes.
Conclusion: These results indicate that CTX-M-2 and CTX-M-8-producing E. coli are present in urban pigeons, which could serve as a reservoir for ESBL-producing E. coli in Brazil.
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| format | Article |
| id | doaj-art-2cb4ca7e068b41d8b05c9f0f89d87705 |
| institution | OA Journals |
| issn | 1972-2680 |
| language | English |
| publishDate | 2019-11-01 |
| publisher | The Journal of Infection in Developing Countries |
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| series | Journal of Infection in Developing Countries |
| spelling | doaj-art-2cb4ca7e068b41d8b05c9f0f89d877052025-08-20T02:27:18ZengThe Journal of Infection in Developing CountriesJournal of Infection in Developing Countries1972-26802019-11-01131110.3855/jidc.11441CTX-M-producing Escherichia coli Isolated from urban pigeons (Columba livia domestica) in BrazilMarcos Paulo Vieira Cunha0Mirela Caroline Vilela Oliveira1Maria Gabriela Xavier Oliveira2Marcia Cristina Menão3Terezinha Knöbl4Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, BrazilDepartment of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, BrazilDepartment of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, BrazilSchool of Veterinary, FMU, São Paulo, BrazilDepartment of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil Introduction: Worldwide urban pigeons (Columba livia domestica) are an important reservoir of pathogenic and multidrug-resistant bacteria (MDR). Plasmids are key genetic elements in the dissemination of antimicrobial drug resistance in bacteria, including beta-lactams and quinolones, which are the most important classes of drugs for treatment of Enterobacteriaceae infections in human and veterinary medicine. The aim of this study was to determine the presence of Escherichia coli (E. coli) harboring plasmids containing extend-spectrum (ESBL) and pAmpC beta-lactamases, also plasmid-mediated quinolone resistance (PMQR) genes in urban pigeons from São Paulo State, Brazil. Methodology: A collection of 107 isolates of E. coli from urban pigeons from four cities was screened by antimicrobial resistance phenotypic and PCR for genes encoding ESBL, pAmpC and PMQR genes. Clonality was evaluated by ERIC-PCR. Results: We found three strains positive for blaCTX-M genes. In two clonally related CTX-M-8-producing strains, the gene was associated with IncI1 plasmids. An MDR strain harboring blaCTX-M-2, the plasmid could not be transferred. No strain was positive for PMQR genes. Conclusion: These results indicate that CTX-M-2 and CTX-M-8-producing E. coli are present in urban pigeons, which could serve as a reservoir for ESBL-producing E. coli in Brazil. https://jidc.org/index.php/journal/article/view/11441Synanthropic birdsAntimicrobial ResistanceESBLQuinolone ResistanceEnterobacteriaceaeEscherichia coli |
| spellingShingle | Marcos Paulo Vieira Cunha Mirela Caroline Vilela Oliveira Maria Gabriela Xavier Oliveira Marcia Cristina Menão Terezinha Knöbl CTX-M-producing Escherichia coli Isolated from urban pigeons (Columba livia domestica) in Brazil Journal of Infection in Developing Countries Synanthropic birds Antimicrobial Resistance ESBL Quinolone Resistance Enterobacteriaceae Escherichia coli |
| title | CTX-M-producing Escherichia coli Isolated from urban pigeons (Columba livia domestica) in Brazil |
| title_full | CTX-M-producing Escherichia coli Isolated from urban pigeons (Columba livia domestica) in Brazil |
| title_fullStr | CTX-M-producing Escherichia coli Isolated from urban pigeons (Columba livia domestica) in Brazil |
| title_full_unstemmed | CTX-M-producing Escherichia coli Isolated from urban pigeons (Columba livia domestica) in Brazil |
| title_short | CTX-M-producing Escherichia coli Isolated from urban pigeons (Columba livia domestica) in Brazil |
| title_sort | ctx m producing escherichia coli isolated from urban pigeons columba livia domestica in brazil |
| topic | Synanthropic birds Antimicrobial Resistance ESBL Quinolone Resistance Enterobacteriaceae Escherichia coli |
| url | https://jidc.org/index.php/journal/article/view/11441 |
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