Characterization of Legionella pneumophila Isolated from Environmental Water and Ashiyu Foot Spa

Hot springs are the most common infectious source of Legionella pneumophila in Japan. However, little is known about the association between L. pneumophila and environmental waters other than hot springs. In this study, water samples from 22 environmental water sites were surveyed; of the 22 samples...

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Autores principales: Tachibana, Masato, Nakamoto, Masaya, Kimura, Yui, Shimizu, Takashi, Watarai, Masahisa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2013
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3728520/
https://www.ncbi.nlm.nih.gov/pubmed/23956987
http://dx.doi.org/10.1155/2013/514395
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author Tachibana, Masato
Nakamoto, Masaya
Kimura, Yui
Shimizu, Takashi
Watarai, Masahisa
author_facet Tachibana, Masato
Nakamoto, Masaya
Kimura, Yui
Shimizu, Takashi
Watarai, Masahisa
author_sort Tachibana, Masato
collection PubMed
description Hot springs are the most common infectious source of Legionella pneumophila in Japan. However, little is known about the association between L. pneumophila and environmental waters other than hot springs. In this study, water samples from 22 environmental water sites were surveyed; of the 22 samples, five were L. pneumophila positive (23%). L. pneumophila was mainly isolated from ashiyu foot spas, a type of hot spring for the feet (3/8, 38%). These isolates had genetic loci or genes that encoded the virulence factors of L. pneumophila. Moreover, these isolates showed higher intracellular growth and stronger cytotoxicity compared with the reference strain. These results suggest that ashiyu foot spa can be the original source for L. pneumophila infection.
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spelling pubmed-37285202013-08-16 Characterization of Legionella pneumophila Isolated from Environmental Water and Ashiyu Foot Spa Tachibana, Masato Nakamoto, Masaya Kimura, Yui Shimizu, Takashi Watarai, Masahisa Biomed Res Int Research Article Hot springs are the most common infectious source of Legionella pneumophila in Japan. However, little is known about the association between L. pneumophila and environmental waters other than hot springs. In this study, water samples from 22 environmental water sites were surveyed; of the 22 samples, five were L. pneumophila positive (23%). L. pneumophila was mainly isolated from ashiyu foot spas, a type of hot spring for the feet (3/8, 38%). These isolates had genetic loci or genes that encoded the virulence factors of L. pneumophila. Moreover, these isolates showed higher intracellular growth and stronger cytotoxicity compared with the reference strain. These results suggest that ashiyu foot spa can be the original source for L. pneumophila infection. Hindawi Publishing Corporation 2013 2013-07-11 /pmc/articles/PMC3728520/ /pubmed/23956987 http://dx.doi.org/10.1155/2013/514395 Text en Copyright © 2013 Masato Tachibana et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Tachibana, Masato
Nakamoto, Masaya
Kimura, Yui
Shimizu, Takashi
Watarai, Masahisa
Characterization of Legionella pneumophila Isolated from Environmental Water and Ashiyu Foot Spa
title Characterization of Legionella pneumophila Isolated from Environmental Water and Ashiyu Foot Spa
title_full Characterization of Legionella pneumophila Isolated from Environmental Water and Ashiyu Foot Spa
title_fullStr Characterization of Legionella pneumophila Isolated from Environmental Water and Ashiyu Foot Spa
title_full_unstemmed Characterization of Legionella pneumophila Isolated from Environmental Water and Ashiyu Foot Spa
title_short Characterization of Legionella pneumophila Isolated from Environmental Water and Ashiyu Foot Spa
title_sort characterization of legionella pneumophila isolated from environmental water and ashiyu foot spa
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3728520/
https://www.ncbi.nlm.nih.gov/pubmed/23956987
http://dx.doi.org/10.1155/2013/514395
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