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Euro Surveill. 2012 Oct 11;17(41):20293.

Humidifier-associated paediatric Legionnaires' disease, Israel, February 2012.

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Division of Epidemiology, Public Health Services, Ministry of Health, Jerusalem, Israel.


We report a fatal case of community-acquired Legionnaires' disease in an infant aged under six months. Epidemiological and microbiological investigations suggested that a free-standing cold water humidifier using domestic tap water contaminated with Legionella pneumophila serogroup 1 served as a vehicle for infection. These findings were corroborated by sequence-based typing (SBT). Humidifier-associated Legionnaires' disease can be prevented by appropriate control measures. This case also illustrates the emerging role of SBT in the investigation of legionellosis.

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