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Mohsin M, Azam M, Ur Rahman S, Esposito F, Sellera FP, Monte DF, Cerdeira L, Lincopan N. Genomic background of a colistin-resistant and highly virulent MCR-1-positive Escherichia coli ST6395 from a broiler chicken in Pakistan. Pathog Dis 2020; 77:5647353. [PMID: 31782775 DOI: 10.1093/femspd/ftz064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 11/28/2019] [Indexed: 11/12/2022] Open
Abstract
The convergence of high virulence and multidrug resistance (MDR) in Gram-negative pathogens circulating at the human-animal interface is a critical public health issue. We hereby report the genomic characteristics and virulent behavior of a colistin-resistant Escherichia coli, serotype ONT:H26, belonging to ST6395, isolated from a healthy broiler in Pakistan. This strain harbored multiple antimicrobial resistance genes, including mcr-1.1 and blaCARB-2, besides cma (colicin M) and astA [heat-stable enterotoxin 1 (EAST1) toxin] virulence genes. In vivo experiments carried out with the Galleria mellonella infection model revealed that MCR-1-positive E. coli ST6395 killed 96.4% of the larvae at 18 hour post-infection. Interplay between resistance and virulence in clinically important pathogens could be a potential threat, representing a serious challenge to global public health.
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Affiliation(s)
- Mashkoor Mohsin
- Institute of Microbiology, University of Agriculture, Jhang Road, Faisalabad, Zip Code 38000, Pakistan
| | - Mariya Azam
- Institute of Microbiology, University of Agriculture, Jhang Road, Faisalabad, Zip Code 38000, Pakistan
| | - Sajjad Ur Rahman
- Institute of Microbiology, University of Agriculture, Jhang Road, Faisalabad, Zip Code 38000, Pakistan
| | - Fernanda Esposito
- Department of Clinical Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 580, São Paulo, CEP 05508-000, Brazil
| | - Fábio P Sellera
- Department of Internal Medicine, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 87, São Paulo, CEP 05508-270, Brazil
| | - Daniel F Monte
- Department of Food and Experimental Nutrition, Food Research Center, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, University of São Paulo, São Paulo, CEP 05508-000, Brazil
| | - Louise Cerdeira
- Institute of Microbiology, University of Agriculture, Jhang Road, Faisalabad, Zip Code 38000, Pakistan
| | - Nilton Lincopan
- Department of Clinical Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 580, São Paulo, CEP 05508-000, Brazil.,Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1374, São Paulo, CEP 05508-000, Brazil
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