A rare but deadly amoeba has been detected in Queensland’s water supply — learn more about Naegleria fowleri, its risks, and current public health guidance.
A recent ABC News report and Murweh Shire Council media release have confirmed the detection of Naegleria fowleri in the drinking water supply of Charleville and Augathella, Queensland.
Read the ABC News article
View Murweh Shire Council’s Community Health Notice
What is Naegleria fowleri?
Naegleria fowleri is a free-living amoeba found in warm freshwater. It causes primary amoebic meningoencephalitis (PAM), a rare but almost always fatal brain infection. Infection occurs only when contaminated water enters the nose, not through drinking or skin contact.
Key Facts:
- Fatality rate: ~98%
- Entry point: Nasal exposure to contaminated water
- Risk factors: Water temperatures exceeding 25–30°C
- Control measures:
- Chlorine contact time of 30 mg·min/L
- Chlorine residuals maintained above 0.5 mg/L
Guidance from ADWG
The Australian Drinking Water Guidelines (ADWG) provide recommendations for managing Naegleria fowleri risks:
- Monitor water temperatures seasonally
- Maintain appropriate chlorine levels and contact times
- Ensure treatment protocols are in place for bore water and other non-reticulated sources
Local Infrastructure and Broader Implications
The detection was part of a Queensland Health and university-led monitoring project, not routine testing. This suggests Naegleria fowleri may be more widespread in regional areas, especially where chlorination is not practiced.
- Augathella has recently addressed E. coli issues through UV system upgrades.
- Charleville experienced contamination from bird droppings in its cooling bladder system, which was temporarily taken offline.
- Morven is undergoing precautionary testing.
Community Precautions
Murweh Shire Council advises residents to:
- Avoid getting water up the nose during bathing or swimming.
- Supervise children using hoses or sprinklers.
- Avoid slip-n-slides and nasal irrigation with untreated water.
Please feel free to share this information with relevant teams and communities.
