Population structure of Environmental and Clinical &ITLegionella pneumophila &ITisolates in Catalonia
Por:
Quero, S, Parraga-Nino, N, Barrabeig, I, Sala, MR, Pedro-Botet, ML, Monso, E, Jane, M, Sabria, M and Garcia-Nunez, M
Publicada:
19 abr 2018
Categoría:
Multidisciplinary
Resumen:
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.
Filiaciones:
:
Hosp Badalona Germans Trias & Pujol, Fundacio Inst Invest Germans Trias & Pujol, Unitat Malalties Infeccioses, Badalona, Spain
:
Hosp Badalona Germans Trias & Pujol, Fundacio Inst Invest Germans Trias & Pujol, Unitat Malalties Infeccioses, Badalona, Spain
CIBER Enfermedades Resp, CIBERes, Madrid, Spain
Barrabeig, I:
Agencia Salut Publ Catalunya, Vigilancia Epidemiol, Barcelona, Spain
Sala, MR:
Agencia Salut Publ Catalunya, Vigilancia Epidemiol, Barcelona, Spain
:
Hosp Badalona Germans Trias & Pujol, Fundacio Inst Invest Germans Trias & Pujol, Unitat Malalties Infeccioses, Badalona, Spain
CIBER Enfermedades Resp, CIBERes, Madrid, Spain
UAB, Dept Med, Barcelona, Spain
Monso, E:
CIBER Enfermedades Resp, CIBERes, Madrid, Spain
UAB, Dept Med, Barcelona, Spain
Parc Tauli Hosp Univ, Dept Resp Med, I3PT, Sabadell, Spain
Jane, M:
Agencia Salut Publ Catalunya, Vigilancia Epidemiol, Barcelona, Spain
:
Hosp Badalona Germans Trias & Pujol, Fundacio Inst Invest Germans Trias & Pujol, Unitat Malalties Infeccioses, Badalona, Spain
CIBER Enfermedades Resp, CIBERes, Madrid, Spain
UAB, Dept Med, Barcelona, Spain
Garcia-Nunez, M:
Hosp Badalona Germans Trias & Pujol, Fundacio Inst Invest Germans Trias & Pujol, Unitat Malalties Infeccioses, Badalona, Spain
CIBER Enfermedades Resp, CIBERes, Madrid, Spain
Parc Tauli Hosp Univ, Dept Resp Med, I3PT, Sabadell, Spain
Green Published, gold
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