Factors promoting colonization by legionellae in residential water distribution systems: an environmental case-control survey

As part of a case-control study of community-acquired Legionnaires' disease, several factors related to residential water distribution systems and public drinking water systems were studied in the homes of 124 patients with community-acquired Legionnaire's disease and in the homes of 354 c...

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Bibliographic Details
Published in:European journal of clinical microbiology & infectious diseases 2002-10, Vol.21 (10), p.717-721
Main Authors: CODONY, F, ALVAREZ, J, ADMETLLA, T, ABOS, R, ESCOFET, A, PEDROL, A, GRAU, R, BADOSA, I, VILA, G, OLIVA, J. M, CIURANA, B, COMPANY, M, CAMPS, N, TORRES, J, MINGUELL, S, JOVE, N, CIRERA, E
Format: Article
Language:English
Subjects:
Bacterial diseases
Bacterial diseases of the respiratory system
Biological and medical sciences
Case-Control Studies
Chlorine
Colonization
Data Collection
Domestic water
Drinking water
Female
Human bacterial diseases
Humans
Incidence
Infectious diseases
Legionella pneumophila - isolation & purification
Legionnaire's disease
Legionnaires' Disease - diagnosis
Legionnaires' Disease - epidemiology
Legionnaires' Disease - etiology
Male
Medical sciences
Probability
Public waters
Reference Values
Risk Assessment
Sensitivity and Specificity
Spain - epidemiology
Water analysis
Water conveyance
Water distribution
Water distribution systems
Water flow
Water Microbiology
Water sampling
Water Supply
Water tanks
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Summary:As part of a case-control study of community-acquired Legionnaires' disease, several factors related to residential water distribution systems and public drinking water systems were studied in the homes of 124 patients with community-acquired Legionnaire's disease and in the homes of 354 controls. The presence of water reservoirs and hot water tanks was studied in residential systems. Factors such as deficient chlorine levels, pipe repairs and other work, water flow interruptions, the use of alternative water sources, inadequate cleaning operations in public water reservoirs, and the position of the home within the public network (and whether this location constituted an endpoint) were studied in public water supply systems. Levels of legionellae in domestic water samples were also measured. Although the use of water reservoirs and hot water tanks promotes colonization by legionellae in residential systems, none of the variables studied seems to increase the incidence of community-acquired Legionnaires' disease.
ISSN:0934-9723
1435-4373
DOI:10.1007/s10096-002-0789-y