Abbreviated duration of superheat-and-flush and disinfection of taps for Legionella disinfection: Lessons learned from failure

Yao Shen Chen, Yung Ching Liu, Susan Shin Jung Lee, Hung Chin Tsai, Shue Ren Wann, Chih Hsiang Kao, Chiao Lin Chang, Wen Kuei Huang, Tsi Shu Huang, Hsueh Lan Chao, Ching Hsien Li, Chin Mei Ke, Yu Sen Eason Lin

研究成果: 雜誌貢獻文章

29 引文 斯高帕斯(Scopus)

摘要

One medical center in southern Taiwan faced an outbreak of nosocomial Legionnaires' disease; a total of 81 suspected cases were detected during an 8-month period. Baseline environmental surveillance showed that 80% of the distal sites in intensive care units (ICUs) were positive for Legionella pneumophila. Superheat-and-flush was selected for hospital water supply disinfection because it required no special equipment, and it can be initiated expeditiously. We conducted 2 episodes of superheat-and-flush based on the published recommendations from the Department of Health, Taiwan; US Centers for Disease Control and Prevention; and American Society of Heating, Refrigerating, and Air-Conditioning Engineers. Both flushes failed to control colonization of Legionella in the hospital water supply. The rate of distal sites positive for Legionella in wards and ICUs was 14% and 66%, respectively, 10 days after the second flush. The effect of replacement of faucets and showerheads in ICUs appeared to be insignificant in colonization of Legionella. The application of superheat-and-flush for flush duration of 5 minutes was ineffective. Superheat-and-flush may not be economic for a large medical center because it could be costly and labor intensive.

原文英語
頁(從 - 到)606-610
頁數5
期刊American Journal of Infection Control
33
發行號10
DOIs
出版狀態已發佈 - 十二月 2005
對外發佈Yes

ASJC Scopus subject areas

  • Microbiology
  • Infectious Diseases

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    Chen, Y. S., Liu, Y. C., Lee, S. S. J., Tsai, H. C., Wann, S. R., Kao, C. H., Chang, C. L., Huang, W. K., Huang, T. S., Chao, H. L., Li, C. H., Ke, C. M., & Lin, Y. S. E. (2005). Abbreviated duration of superheat-and-flush and disinfection of taps for Legionella disinfection: Lessons learned from failure. American Journal of Infection Control, 33(10), 606-610. https://doi.org/10.1016/j.ajic.2004.12.008