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Article: Forensic genomics of a novel Klebsiella quasipneumoniae type from a neonatal intensive care unit in China reveals patterns of colonization, evolution and epidemiology
Title | Forensic genomics of a novel Klebsiella quasipneumoniae type from a neonatal intensive care unit in China reveals patterns of colonization, evolution and epidemiology |
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Authors | |
Keywords | Klebsiella quasipneumoniae subsp. similipneumoniae genetic diversity virulence determinants antimicrobial resistance |
Issue Date | 2020 |
Publisher | The Microbiology Society. The Journal's web site is located at https://www.microbiologyresearch.org/content/journal/mgen |
Citation | Microbial Genomics, 2020, v. 6 n. 10, p. article no. 000433 How to Cite? |
Abstract | During March 2017, a neonatal patient with severe diarrhoea subsequently developed septicaemia and died, with Klebsiella isolated as the causative microorganism. In keeping with infection control protocols, the coincident illness of an attending staff member and three other neonates with Klebsiella infection triggered an outbreak response, leading to microbiological assessment of isolates collected from the staff member and all 21 co-housed neonates. Multilocus sequence typing and genomic sequencing identified that the isolates from the 21 neonates were of a new Klebsiella sequence type, ST2727, and taxonomically belonged to K. quasipneumoniae subsp. similipneumoniae (formerly referred to as KpIIB). Genomic characterization showed that the isolated ST2727 strains had diverged from other K. quasipneumoniae subsp. similipneumoniae strains at least 90 years ago, whereas the neonatal samples were highly similar with a genomic divergence of 3.6 months. There was no relationship to the Klebsiella isolate from the staff member. This demonstrates that no transmission occurred from staff to patient or between patients. Rather, the data suggest that ST2727 colonized each neonate from a common hospital source. Sequence-based analysis of the genomes revealed several genes for antimicrobial resistance and some virulence features, but suggest that ST2727 is neither extremely-drug resistant nor hypervirulent. Our results highlight the clinical significance and genomic properties of ST2727 and urge genome-based measures be implemented for diagnostics and surveillance within hospital environments. Additionally, the present study demonstrates the need to scale the power of genomic analysis in retrospective studies where relatively few samples are available. |
Persistent Identifier | http://hdl.handle.net/10722/294558 |
PubMed Central ID | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Perlaza-Jimenez, L | - |
dc.contributor.author | Wu, Q | - |
dc.contributor.author | Torres, VVL | - |
dc.contributor.author | Zhang, X | - |
dc.contributor.author | Li, J | - |
dc.contributor.author | Rocker, A | - |
dc.contributor.author | Lithgow, T | - |
dc.contributor.author | Zhou, T | - |
dc.contributor.author | Dhanasekaran, V | - |
dc.date.accessioned | 2020-12-08T07:38:41Z | - |
dc.date.available | 2020-12-08T07:38:41Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Microbial Genomics, 2020, v. 6 n. 10, p. article no. 000433 | - |
dc.identifier.uri | http://hdl.handle.net/10722/294558 | - |
dc.description.abstract | During March 2017, a neonatal patient with severe diarrhoea subsequently developed septicaemia and died, with Klebsiella isolated as the causative microorganism. In keeping with infection control protocols, the coincident illness of an attending staff member and three other neonates with Klebsiella infection triggered an outbreak response, leading to microbiological assessment of isolates collected from the staff member and all 21 co-housed neonates. Multilocus sequence typing and genomic sequencing identified that the isolates from the 21 neonates were of a new Klebsiella sequence type, ST2727, and taxonomically belonged to K. quasipneumoniae subsp. similipneumoniae (formerly referred to as KpIIB). Genomic characterization showed that the isolated ST2727 strains had diverged from other K. quasipneumoniae subsp. similipneumoniae strains at least 90 years ago, whereas the neonatal samples were highly similar with a genomic divergence of 3.6 months. There was no relationship to the Klebsiella isolate from the staff member. This demonstrates that no transmission occurred from staff to patient or between patients. Rather, the data suggest that ST2727 colonized each neonate from a common hospital source. Sequence-based analysis of the genomes revealed several genes for antimicrobial resistance and some virulence features, but suggest that ST2727 is neither extremely-drug resistant nor hypervirulent. Our results highlight the clinical significance and genomic properties of ST2727 and urge genome-based measures be implemented for diagnostics and surveillance within hospital environments. Additionally, the present study demonstrates the need to scale the power of genomic analysis in retrospective studies where relatively few samples are available. | - |
dc.language | eng | - |
dc.publisher | The Microbiology Society. The Journal's web site is located at https://www.microbiologyresearch.org/content/journal/mgen | - |
dc.relation.ispartof | Microbial Genomics | - |
dc.rights | Microbial Genomics. Copyright © The Microbiology Society. | - |
dc.rights | archiving statement on the title page: '© [Laura Perlaza-Jiménez, Qing Wu, Von Vergel L. Torres, Xiaoxiao Zhang, Jiahui Li, Andrea Rocker, Trevor Lithgow, Tieli Zhou, Dhanasekaran Vijaykrishna, 2020]. The definitive peer reviewed, edited version of this article is published in [Microbial Genomics, 2020, v. 6 n. 10, p. article no. 000433, 10.1099/mgen.0.000433].' | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Klebsiella quasipneumoniae subsp. similipneumoniae | - |
dc.subject | genetic diversity | - |
dc.subject | virulence determinants | - |
dc.subject | antimicrobial resistance | - |
dc.title | Forensic genomics of a novel Klebsiella quasipneumoniae type from a neonatal intensive care unit in China reveals patterns of colonization, evolution and epidemiology | - |
dc.type | Article | - |
dc.identifier.email | Dhanasekaran, V: veej@hku.hk | - |
dc.identifier.authority | Dhanasekaran, V=rp02721 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1099/mgen.0.000433 | - |
dc.identifier.pmid | 32931409 | - |
dc.identifier.pmcid | PMC7660260 | - |
dc.identifier.scopus | eid_2-s2.0-85094220553 | - |
dc.identifier.hkuros | 320554 | - |
dc.identifier.hkuros | 317664 | - |
dc.identifier.volume | 6 | - |
dc.identifier.issue | 10 | - |
dc.identifier.spage | article no. 000433 | - |
dc.identifier.epage | article no. 000433 | - |
dc.identifier.eissn | 2057-5858 | - |
dc.identifier.isi | WOS:000582635500006 | - |
dc.publisher.place | United Kingdom | - |
dc.identifier.issnl | 2057-5858 | - |