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Int J Infect Dis. 2014 Feb;19:95-7. doi: 10.1016/j.ijid.2013.10.004. Epub 2013 Nov 21.

Legionnaires' disease caused by Legionella longbeachae in Taiwan, 2006-2010.

Author information

  • 1Centers for Disease Control, Taipei, Taiwan; Institute of Public Health, National Yang-Ming University, Taipei, Taiwan.
  • 2Centers for Disease Control, Taipei, Taiwan.
  • 3Institute of Public Health, National Yang-Ming University, Taipei, Taiwan; Department of Internal Medicine, Heping Fuyou Branch, Taipei City Hospital, Taipei, Taiwan.
  • 4Department of Internal Medicine, Show-Chwan Memorial Hospital, Changhua, Taiwan.
  • 5Department of Internal Medicine, En Chu Kong Hospital, Taipei, Taiwan.
  • 6Department of Internal Medicine, Changhua Christian Hospital, Changhua, Taiwan.
  • 7Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Medicine, National Yang-Ming University, Taipei, Taiwan.
  • 8Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan.
  • 9Centers for Disease Control, Taipei, Taiwan; Center of General Education, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan. Electronic address:


The aim of the present study was to investigate the epidemiology of Legionnaires' disease (LD) caused by Legionella longbeachae in Taiwan during 2006-2010. A total of six cases were identified prospectively, accounting for 1.6% of all laboratory-confirmed LD cases and 4.4% of culture-positive LD cases. All six cases occurred between April and August. The male to female ratio was 0.5. These six LD patients had a higher median age than those with LD due to Legionella pneumophila. Four of the six patients presented with pleural effusion and five survived the infection episode. Only two patients had a potential soil contact history prior to LD onset. The patients resided in divergent geographical areas without a common exposure history. The individual genomic DNA banding patterns of the six L. longbeachae isolates analyzed by pulsed-field gel electrophoresis (PFGE) were unique, supporting the hypothesis that the L. longbeachae infections occurred sporadically.

Copyright © 2013 The Authors. Published by Elsevier Ltd.. All rights reserved.


Legionella longbeachae; Legionnaires’ disease; Taiwan

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