The Role of Legionella in Indoor Air Quality And Other Related Information

Conceptual Chain of Events Required to Cause the Outbreak of Legionellosis

Legionella must be present in the environment.
Some factor must allow the organisms to amplify from low to high concentrations.
The organisms must be disseminated in the environment to a person in the form of an aerosol.
The types of Legionella present must be virulent to humans.
The organisms must be inoculated at the appropriate site inside the potential host.
The host must be susceptible to infection.