Population structure of Environmental and Clinical Legionella pneumophila isolates in Catalonia
Quero, Sara (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Párraga-Niño, Noemí (Centro de Investigación Biomédica en Red de Enfermedades Respiratorias)
Barrabeig, Irene (Agència de Salut Pública de Barcelona)
Sala, Maria Rosa (Agència de Salut Pública de Barcelona)
Pedro-Botet, M. Luisa (Universitat Autònoma de Barcelona. Departament de Medicina)
Monsó, Eduard (Parc Taulí Hospital Universitari. Institut d'Investigació i Innovació Parc Taulí (I3PT))
Jané i Checa, Mireia (Agència de Salut Pública de Barcelona)
Sabriá-Leal, M (Universitat Autònoma de Barcelona. Departament de Medicina)
Garcia-Nuñez, Marian (Parc Taulí Hospital Universitari. Institut d'Investigació i Innovació Parc Taulí (I3PT))
Universitat Autònoma de Barcelona

Date:	2018
Abstract:	Legionella is the causative agent of Legionnaires' disease (LD). In Spain, Catalonia is the region with the highest incidence of LD cases. The characterisation of clinical and environmental isolates using molecular epidemiology techniques provides epidemiological data for a specific geographic region and makes it possible to carry out phylogenetic and population-based analyses. The aim of this study was to describe and compare environmental and clinical isolates of Legionella pneumophila in Catalonia using sequence-based typing and monoclonal antibody subgrouping. A total of 528 isolates were characterised. For data analysis, the isolates were filtered to reduce redundancies, and 266 isolates (109 clinical and 157 environmental) were finally included. Thirty-two per cent of the clinical isolates were ST23, ST37 and ST1 while 40% of the environmental isolates were ST284 and ST1. Although the index of diversity was higher in clinical than in environmental ST isolates, we observed that clinical STs were similar to those recorded in other regions but that environmental STs were more confined to particular study areas. This observation supports the idea that only certain STs trigger cases or outbreaks in humans. Therefore, comparison of the genomes of clinical and environmental isolates could provide important information about the traits that favour infection or environmental persistence.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	Scientific reports, Vol. 8 (april 2018) , ISSN 2045-2322

DOI: 10.1038/s41598-018-24708-1
PMID: 29674708

9 p, 1.3 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Parc Taulí Research and Innovation Institute (I3PT
Articles > Research articles
Articles > Published articles