Abstract：
: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.
journal_name
Am J Infect Controljournal_title
American journal of infection controlauthors
Chen YS,Liu YC,Lee SS,Tsai HC,Wann SR,Kao CH,Chang CL,Huang WK,Huang TS,Chao HL,Li CH,Ke CM,Lin YSdoi
10.1016/j.ajic.2004.12.008subject
Has Abstractpub_date
2005-12-01 00:00:00pages
606-10issue
10eissn
0196-6553issn
1527-3296pii
S0196-6553(05)00438-4journal_volume
33pub_type
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