Our rapid DNA based Legionella assay is a powerful testing technique for early detection of Legionella that isolates and enumerates Legionella species in water and provides you with a rapid and cost-effective testing service.
The method couples standard bacterial culture techniques with DNA technology, meets the current standard method (AS/NZS 3896), and has a superior advantage in speed. Confirmed Legionella pneumophila counts are available in three days, compared to up to seven days by the standard method.
Our delivery of rapid results enables your remedial action much quicker than previously possible.
Application
Legionella are common in industrial and environmental water sources, existing as part of biofilms or in sediments and are often found to co-exist with protozoa and ciliates. Legionella species are responsible for sporadic and outbreak cases of atypical pneumonia (Legionellosis) and a lesser form of infection known as Pontiac Fever, which is undiagnosed in many instances.
Control
Efforts to control the spread of Legionnaire’s Disease have primarily concentrated on stopping the potential of transmission by controlling the multiplication of Legionella in water sources. Chemical dosing of water sources is the primary measure employed, although there are other techniques available, such as DNA testing.
Sample container
300mL sterile plastic (PT300)
Label
PT300 - sterile - sodium thio - air gap, ice
Analytes & holding times
All water types
#Legionella (24 hours)
Samples from warm or hot water systems require NO FLUSHING or flame sterilisation of sample tap prior to sampling
Sampling requirements - air gap
Storage and preservation
Iced or chilled to 4°C.
Sodium thiosulphate dosed.
Notes
Aseptic preparation is mandatory. Bottle to be double bagged with zip locks for storage on ice
Traditional testing method
Current testing for Legionella relies upon the use of traditional method that is based on AS/NZS 3896 which isolates and enumerates Legionella species in water by the spread plate technique.
The sample of water is treated, inoculated onto specific media and incubated up to 7-10 days. Further tests are performed to confirm suspect Legionella like organisms. Confirmed Legionella are identified as Legionella spp., Legionella serogroup 1 or serogroup 2-14 using rapid latex slide agglutination.