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Baaity Z, Jamal W, Rotimi VO, Burián K, Leitsch D, Somogyvári F, Nagy E, Sóki J. Molecular characterization of metronidazole resistant Bacteroides strains from Kuwait. Anaerobe 2021; 69:102357. [PMID: 33713801 DOI: 10.1016/j.anaerobe.2021.102357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/05/2021] [Accepted: 03/07/2021] [Indexed: 10/21/2022]
Abstract
Eleven metronidazole resistant Bacteroides and one newly classified Phocaeicola dorei strain from Kuwait were investigated for their resistance mechanisms and the emergence of their resistant plasmids. All but one strain harbored nimE genes on differently sized plasmids. Of the 11 nimE genes, 9 were preceded by full copies of the prototype ISBf6 insertion sequence element, one carried a truncated ISBf6 and one was activated by an additional copy of IS612B. Nucleotide sequencing results showed that the nimE ISBf6 distances were constant and all five different plasmids shared a common region, suggesting that (i) the nimE-ISBf6 configuration was inserted into an undisclosed common genetic element, (ii) over time, this common element was mutated by insertions and deletions, spreading the resultant plasmids. Of the 10 B. fragilis strains in this collection, 6 were also cfiA-positive, one with full imipenem resistance, indicating a tendency for multidrug resistance (MDR) among such isolates. The significant number of metronidazole resistant Bacteroides spp. and P. dorei strains with the MDR phenotype warns of difficulties in treatment and suggests promoting adherence to antibiotic stewardship recommendations in Kuwait.
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Affiliation(s)
- Zain Baaity
- Institute of Clinical Microbiology, Faculty of Medicine, University of Szeged, Szeged, Hungary; Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Wafaa Jamal
- Department of Microbiology, Faculty of Medicine, University of Kuwait, Safat, Kuwait
| | - Vincent O Rotimi
- Department of Microbiology, Faculty of Medicine, University of Kuwait, Safat, Kuwait
| | - Katalin Burián
- Institute of Clinical Microbiology, Faculty of Medicine, University of Szeged, Szeged, Hungary; Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - David Leitsch
- Institute for Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Ferenc Somogyvári
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Elisabeth Nagy
- Institute of Clinical Microbiology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - József Sóki
- Institute of Clinical Microbiology, Faculty of Medicine, University of Szeged, Szeged, Hungary.
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