Legionnaires Disease Outbreak

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INTRO - Affia
Hi I'm Affia Chohan and this is Peter Nicholls, trainee medical scientists working at Flinders Medical Centre in the Department of Infectious Diseases. We’d like to share a case report of a recent Legionnaires’ disease outbreak which has been handed down to our department for investigation. We will give you a thorough understanding of how the source was located and controlled as well as go into depth as to how to prevent similar outbreaks from occurring again in the future. So I'm pretty sure many of you'se would be unfamiliar with what Legionnaire's disease is, so Peter will therefore take a moment to define what it is and give you a brief insight into its most common origin of infection and the symptoms that follow.

WHAT IS LEGIONNAIRES - Peter
Legionnaires' disease is a sometimes lethal form of pneumonia, which is an infection of the lungs caused by bacteria of the Legionella family. Legionnaires disease can occur after a person inhales contaminated water vapour or dust.

HOW IS IT SPREAD - Peter
It is caused by the bacterium Legionella, which has over 50 different species, with one of the most common legionnaires disease causing strain in australia being Legionella pneumophila. The bacteria can be found in both …show more content…

Interviews over the past week with five adults have found that all five people who have worked in or have been exposed to parts of the suburban shopping centre in Adelaide's central business district (CBD) have contracted Legionnaires disease. It's possible but not confirmed that their infections may have arisen from exposures in some parts of the central business district, so as a precautionary measure the department had organised for inspection and microbiological testing of the cooling towers of the shopping centre through the Communicable Diseases Branch of the South Australian Department of