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Legionella are large family of micro-organisms which are naturally found in water bodies and sometimes soil.
Legionella attach to surfaces forming a biofilm.
They have been shown to colonise hot water tanks and various materials found in water systems including plastics, rubber, and wood when water temperatures are between 40 and 50° C.
Many species of Legionella give rise to diseases in humans.
Source: GreenFacts, based on the
Legionella experts 
The Legionnaires' disease is a lung infection (pneumonia) caused by Legionella pneumophila.
The name was derived from the original outbreak at the 1976 American Legion Convention in Philadelphia.
The Legionella bacteria enter the lungs carried by fine water droplets.
Source: Greenfacts, based on
Legionella experts
Biofilm - Micro-organism - Pneumonia
GreenFacts Summary on Effects of Biocides on antibiotic resistance:
Deutsch: Legionellen
Español: Legionella
Français: Légionelles
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