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Lupo A, Valot B, Saras E, Drapeau A, Robert M, Bour M, Haenni M, Plésiat P, Madec JY, Potron A. Multiple host colonization and differential expansion of multidrug-resistant ST25-Acinetobacter baumannii clades. Sci Rep 2023; 13:21854. [PMID: 38071225 PMCID: PMC10710421 DOI: 10.1038/s41598-023-49268-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 12/06/2023] [Indexed: 12/18/2023] Open
Abstract
The Acinetobacter baumannii clonal lineage ST25 has been identified in humans and animals and found associated with outbreaks globally. To highlight possible similarities among ST25 A. baumannii of animal and human origins and to gather clues on the dissemination and evolution of the ST25 lineage, we conducted a phylogenetic analysis on n = 106 human and n = 35 animal A. baumannii ST25 genomes, including 44 sequenced for this study. Resistance genes and their genetic background were analyzed, as well. ST25 genomes are clustered into four clades: two are widespread in South America, while the other two are largely distributed in Europe, Asia and America. One particular clade was found to include the most recent strains and the highest number of acquired antibiotic resistance genes. OXA-23-type carbapenemase was the most common. Other resistance genes such as blaNDM-1, blaPER-7, and armA were found embedded in complex chromosomal regions present in human isolates. Genomic similarity among multidrug resistant ST25 isolates of either animal or human origin was revealed, suggesting cross-contaminations between the two sectors. Tracking the clonal complex ST25 between humans and animals should provide new insights into the mode of dissemination of these bacteria, and should help defining strategies for preserving global health.
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Affiliation(s)
- Agnese Lupo
- Unité Antibiorésistance et Virulence Bactériennes, ANSES - Université de Lyon 1, 31 Avenue Tony Garnier, 69007, Lyon, France.
| | - Benoît Valot
- UMR 6249 Chrono-Environnement, CNRS-Université de Bourgogne/Franche-Comté, Besançon, France
| | - Estelle Saras
- Unité Antibiorésistance et Virulence Bactériennes, ANSES - Université de Lyon 1, 31 Avenue Tony Garnier, 69007, Lyon, France
| | - Antoine Drapeau
- Unité Antibiorésistance et Virulence Bactériennes, ANSES - Université de Lyon 1, 31 Avenue Tony Garnier, 69007, Lyon, France
| | - Marine Robert
- Unité Antibiorésistance et Virulence Bactériennes, ANSES - Université de Lyon 1, 31 Avenue Tony Garnier, 69007, Lyon, France
| | - Maxime Bour
- CNR de la Résistance aux Antibiotiques, Centre Hospitalier Universitaire de Besançon, Besançon, France
| | - Marisa Haenni
- Unité Antibiorésistance et Virulence Bactériennes, ANSES - Université de Lyon 1, 31 Avenue Tony Garnier, 69007, Lyon, France
| | - Patrick Plésiat
- UMR 6249 Chrono-Environnement, CNRS-Université de Bourgogne/Franche-Comté, Besançon, France
| | - Jean-Yves Madec
- Unité Antibiorésistance et Virulence Bactériennes, ANSES - Université de Lyon 1, 31 Avenue Tony Garnier, 69007, Lyon, France
| | - Anaïs Potron
- UMR 6249 Chrono-Environnement, CNRS-Université de Bourgogne/Franche-Comté, Besançon, France
- CNR de la Résistance aux Antibiotiques, Centre Hospitalier Universitaire de Besançon, Besançon, France
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