Protocol for sampling environmental sites for legionellae
Journal Article
·
· Appl. Environ. Microbiol.; (United States)
OSTI ID:5970387
A protocol for sampling environmental sites was developed and used to identify possible sources of Legionella species in support of epidemiologic investigations at two hospitals. In hospital A, legionellae were isolated from 43 of 106 (40%) different sites. Three separate Legionella pneumophila serotypes and a previously unrecognized species were present in different combinations in the positive samples. Two of five cooling towers contained the same L. pneumophila serogroup 1 monoclonal type (1,2,4,5) as was isolated from patients. The same monoclonal type was also isolated from make-up water for the two cooling towers, a hot water tank, water separators in four main air compressor systems for respiratory therapy, and cold and hot water faucets. In hospital B, 13 of 37 (38%) sample sites contained legionellae, all of which were L. pneumophila serogroup 1. The monoclonal type matching isolates from patients (1,2,4,5) was found at the highest concentration in a hot water tank, but it was also present at four other sample sites. Since legionellae not related to disease may be found in many of the sites sampled, an epidemiologic association with the probable source should be established before intervention methods, such as disinfection, are undertaken.
- Research Organization:
- Centers for Disease Control, Atlanta, GA
- OSTI ID:
- 5970387
- Journal Information:
- Appl. Environ. Microbiol.; (United States), Journal Name: Appl. Environ. Microbiol.; (United States) Vol. 53:7; ISSN AEMID
- Country of Publication:
- United States
- Language:
- English
Similar Records
Hot water systems as sources of Legionella pneumophila in hospital and nonhospital plumbing fixtures
AUTOMATED DEAD-END ULTRAFILTRATION FOR ENHANCED SURVEILLANCE OF LEGIONELLA 2 PNEUMOPHILA AND LEGIONELLA SPP. IN COOLING TOWER WATERS
Legionella spp. in Puerto Rico cooling towers
Journal Article
·
Sat May 01 00:00:00 EDT 1982
· Appl. Environ. Microbiol.; (United States)
·
OSTI ID:5131361
AUTOMATED DEAD-END ULTRAFILTRATION FOR ENHANCED SURVEILLANCE OF LEGIONELLA 2 PNEUMOPHILA AND LEGIONELLA SPP. IN COOLING TOWER WATERS
Journal Article
·
Mon Oct 10 00:00:00 EDT 2011
· Journal of Applied Environmental Microbiology
·
OSTI ID:1026835
Legionella spp. in Puerto Rico cooling towers
Journal Article
·
Sat Oct 01 00:00:00 EDT 1988
· Applied and Environmental Microbiology; (USA)
·
OSTI ID:5086230