Molecular epidemiology and characterization of an outbreak causing Klebsiella pneumoniae clone carrying chromosomally located bla CTX-M-15 at a German University-Hospital (Record no. 19550)

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fixed length control field 03367nam a22003377a 4500
003 - CONTROL NUMBER IDENTIFIER
control field OSt
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control field 20240305193732.0
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022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 1471-2180
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Source Phone: +255 28 298 3384
Source Fax: +255 28 298 3386
Source Email: vc@bugando.ac.tz
Source Website: www.bugando.ac.tz
040 ## - CATALOGING SOURCE
Language of cataloging English
Transcribing agency DLC
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Language code of text/sound track or separate title English
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name Stephen E Mshana
9 (RLIN) 15820
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Key title Hospital Nosocomial infection ESBL Multi-resistance Klebsiella Chromosomal insertion Download PDF Abstract Background Methods Results Discussion Conclusions References Acknowledgements Author information Additional information Rights and permissions About this article Advertisement
245 ## - TITLE STATEMENT
Title Molecular epidemiology and characterization of an outbreak causing Klebsiella pneumoniae clone carrying chromosomally located bla CTX-M-15 at a German University-Hospital
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc. Mwanza, Tanzania:
Name of publisher, distributor, etc. BioMed Central &
-- Catholic University of Health and Allied Sciences [CUHAS – Bugando]
Date of publication, distribution, etc. 17 June 2015
300 ## - PHYSICAL DESCRIPTION
Extent Pages 1-6
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Volume/sequential designation BMC microbiology Volume 15 Issue 1
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Summary, etc. Abstract<br/><br/>Background: Multi-drug resistant Klebsiella pneumoniae strains are a common cause of health care associated infections worldwide. Clonal spread of Klebsiella pneumoniae isolates carrying plasmid mediated CTX-M-15 have been commonly reported. Limited data is available regarding dissemination of chromosomally encoded CTX-M-15 in Klebsiella pneumoniae worldwide.<br/><br/>Results: We examined 23 non-repetitive ESBL-producing Klebsiella pneumoniae strains isolated from clinical specimens over a period of 4 months in a German University Hospital. All isolates were characterized to determine their genetic relatedness using Pulsed-Field Gel Electrophoresis (PFGE) and Multi Locus Sequence Typing (MLST). PFGE revealed three clusters (B1, B2, and B3) with a sub-cluster (A3) comprising of 10 isolates with an identical PFGE pattern. All strains of the cluster B3 with similar PFGE patterns were typed as ST101, indicating an outbreak situation. The ESBL allele bla CTX-M-15 was identified in 16 (69.6 %) of all isolates, including all of the outbreak strains. Within the A3 sub-cluster, the CTX-M-15 allele could not be transferred by conjugation. DNA hybridization studies suggested a chromosomal location of bla CTX-M-15. Whole genome sequencing located CTX-M-15 within a complete ISEcp-1 transposition unit inserted into an ORF encoding for a putative membrane protein. PCR-based analysis of the flanking regions demonstrated that insertion into this region is unique and present in all outbreak isolates.<br/><br/>Conclusion: This is the first characterization of a chromosomal insertion of bla CTX-M-15 in Klebsiella pneumonia ST101, a finding suggesting that in Enterobacteriaceae, chromosomal locations may also act as reservoirs for the spread of bla CTX-M-15 encoding transposition units.
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9 (RLIN) 45649
9 (RLIN) 23152
9 (RLIN) 23626
9 (RLIN) 23625
9 (RLIN) 23153
9 (RLIN) 15822
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Uniform Resource Identifier <a href="https://doi.org/10.1186/s12866-015-0460-2">https://doi.org/10.1186/s12866-015-0460-2</a>
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Koha item type RESEARCH ARTICLES
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