Nosocomial transmission of legionella pneumophila to a child from a hospital´s cold-water supply
2006 (English)In: Scandinavian Journal of Infectious Diseases, ISSN 0036-5548, Vol. 38, no 11-12, 1023-1027 p.Article in journal (Refereed) Published
Human Legionella infections mainly consist of community-acquired and nosocomial pneumonia and rarely affect children. We describe a nosocomial infection with Legionella pneumophila, serogroup 1, subgroup OLDA, in an immunocompromized 2-y-old girl at a paediatric clinic. L. pneumophila identical to that of the patient was found in the hospital's cold-water but not in the hot-water distribution system. Transmission of Legionella to the girl most probably occurred by Legionella-contaminated cold water mixed and heated by water from the hot-water system. Mixing of hot and cold water probably occurred through thermostatic water mixing valves connected to showers regulated by a handle at the shower head. Nosocomial Legionella infection might thus have occurred, although circulating hot water temperatures never dropped below 53°C and cultures for surveillance of Legionella from central parts of the hot-water system have been consistently negative. Legionellae were successfully eliminated from the hospital's cold-water distribution system by hot water flushing at 73°C for 1h.
Place, publisher, year, edition, pages
2006. Vol. 38, no 11-12, 1023-1027 p.
Legionella, Nosocomial transmission
Microbiology in the medical area
IdentifiersURN: urn:nbn:se:uu:diva-10659DOI: 10.1080/00365540600827558ISI: 000242474600011PubMedID: 17148071OAI: oai:DiVA.org:uu-10659DiVA: diva2:38427