Legionella and plumbing systems. Legionnaires' disease The first recognized cases of Legionnaires' disease occurred in 1976 in Philadelphia, Pennsylvania.

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Presentation transcript:

Legionella and plumbing systems

Legionnaires' disease The first recognized cases of Legionnaires' disease occurred in 1976 in Philadelphia, Pennsylvania. Among attendees of a Legionnaires' convention held at the Bellevue-Stratford Hotel, 221 attendees contracted the disease and 34 of them died

Recent outbreaks Wesley Hospital Hervey Bay Hospital Camira MOP

An elderly woman has contracted Legionnaires disease after her solar hot water system circulating pump failed

Transmitted by inhalation of contaminated materials Flu like symptoms Difficult to distinguish from pneumonia Hot-water systems Cooling towers Potting mix, reservoirs, fountains, spas Symptoms

Under 20°C low Legionella risk °C ideal reproduction range 42-50°C reproduction not possible 50-60°C Legionella are killed 60-70°C Killed within seconds

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