UnitingCare Health strives for excellence in all aspects of our operations, in the continual improvement of the quality of the services we deliver, and in the way we operate within the healthcare industry and wider community.
In line with Queensland Government legislation announced on 4 February 2016, we report on all types of Legionella tested in our hospitals.
Although Legionella is a common occurrence in the environment, our water management regime, based on international best practice standards, continues to reduce the associated risk to patients and staff.
On this page you will find Frequently Asked Questions about Legionella and our water management practices.
(strain known to cause most water-related Legionella infections)
*Legionella Non Pneumophila
(strain that may cause water-related Legionella infections)
St Andrew’s War Memorial Hospital utilises an accredited testing laboratory for Legionella water testing and conducts regular monthly water tests across the entire facility. This increases the likelihood of detection in St Andrew’s War Memorial Hospital water samples.
Frequently Asked Questions
1) Should I be concerned about coming for a consultation or procedure at St Andrew’s War Memorial Hospital?
There is no need for concern about coming to St Andrew’s War Memorial Hospital for treatment.
St Andrew’s War Memorial Hospital undertakes current international best practice guidelines for eradication of legionella in order to achieve water quality that is as safe as possible.
2) Is there any risk of patients, visitors and staff contracting legionnaires disease at St Andrew’s War Memorial Hospital?
The hospital’s water is entirely safe to use.
It is important to understand that Legionnaires disease is not spread from person to person.
St Andrew’s War Memorial Hospital water testing and treatment program involves:
- Comprehensive monthly testing of the hospital’s water systems that goes well beyond the guidelines ordered by Queensland Health for all Queensland hospitals
- Testing of the hospital’s air-conditioning water towers occurs monthly.
3) What is legionnaires disease?
Legionnaires disease is an infection of the lungs (pneumonia) caused by bacteria of the Legionella family. The bacteria is commonly found in the environment, but infection only occurs in “at-risk” people. Legionnaires disease can usually be treated with antibiotics.
4) Who is most impacted by legionnaires disease?
Legionnaires disease most often affects “at-risk” people such as the elderly and particularly those who smoke or who have chronic lung disease. Also at increased risk are those whose immune systems are suppressed by medications or diseases such as cancer, kidney failure, diabetes or HIV-AIDS. Pregnant women with lung disorders or reduced immunity are also at risk. Well patients, children and babies are at very low risk.
5) How is legionnaires disease spread?
Legionnaires disease can occur after a person breathes in contaminated water vapour or dust from such places as air conditioning cooling towers, whirlpool spas, showerheads and other bodies of water. Legionnaires disease is not spread from person to person or by drinking water.
6) What are the symptoms of legionnaires disease?
Legionella pneumonia symptoms usually begin two to 10 days after exposure, with symptoms such as fever, chills, a cough and shortness of breath. Some people also have muscle aches, headache, tiredness, loss of appetite and diarrhoea.
7) Is the ice at the St Andrew’s War Memorial Hospital safe?
Contracting Legionella from ice occurs when icy water is aspirated into the lungs of an already immune-compromised patient.
While the risk for other patients is very low St Andrew’s War Memorial Hospital is following advice from the Chief Health Officer in February 2016, and ice from ice machines is no longer provided to patients.
8) Why is monitoring of a hospital’s water supply important?
As outlined in the enHealth "Guidelines for Legionella Control in the Operation and Maintenance of Water Distribution Systems in Health and Aged Care Facilities" (see FAQ 10 below) sampling and analysis of water in a facility’s water distribution system is vital to:
- ensure that the risk control measures instituted are effective – this is sometimes referred to as operational monitoring.
- determine the presence and extent of Legionella colonisation, both generally and following the implementation of control or remediation measures – this is known as verification monitoring.
Monitoring is part of an effective Legionella risk management strategy. Monitoring provides the ability to assess the effectiveness of maintenance and controls, and detect the presence of Legionella before cases of Legionnaires’ disease occur.
St Andrew's Hospital undertakes both operational monitoring and verification monitoring.
Culture is the recommended method for Legionella verification monitoring and this typically takes up to 10 days to obtain a result.
It is important to be aware that failure to detect Legionella by culture does not guarantee the absence of Legionella, as Legionella is difficult to grow on culture media and viable but nonculturable (VBNC) Legionella may be present – see page 29 of the enHealth Guidelines.
9) What happens if legionella is detected in a water sample?
If Legionella is detected in a water sample, the hospital will immediately advise Queensland Health.
As outlined in the enHealth "Guidelines for Legionella Control in the Operation and Maintenance of Water Distribution Systems in Health and Aged Care Facilities" (see FAQ 10 below) we will then investigate whether the control measures are adequate, and the system control measures are assessed and checked to identify whether any failures have occurred.
If faults are detected, these will be rectified before further sampling to verify the efficacy of the intervention. If verification identifies further positive results, the full system will be reassessed.
Where Legionella is detected in a water sample exposure of vulnerable people in the effected area will be immediately controlled. Where Legionella colonisation has been found, apply appropriate control measures (eg disinfection) to the affected sections or components of the water distribution system, or the entire water distribution system, depending on the extent of identified or potential colonisation – see page 34 of the enHealth Guidelines.
If Legionella is detected in the hospital’s water distribution system, or a case of Legionnaires’ disease is shown or suspected to be linked to colonisation of the hospital’s water distribution system, one or more of the following control measures will be undertaken as a matter of priority:
- Chlorination and hyperchlorination: This is the chemical clean of the effected area by chlorine.
- Cleaning of fittings or replacement with new or cleaned fitting: This involves removal and disassembly of the components, and inspection and cleaning of individual components in accordance with the manufacturer’s recommendations.
- Implementation of appropriate exposure controls: For example of the installation of Point of Use filters in the effected area (if appropriate or required).
Once appropriate control measures have been implemented or undertaken, normal operation of the system and facility will usually recommence – see page 35 of the enHealth Guidelines.
10) Are there national guidelines for the management of Legionella in hospitals?
The enHealth "Guidelines for Legionella Control in the Operation and Maintenance of Water Distribution Systems in Health and Aged Care Facilities" were endorsed by the Australian Health Protection Principal Committee in December 2015. You can view thesein the enHealth Guidelines.