Deadly Brain-Eating Amoeba Detected in Australian Tap Water: 97% Fatality Rate Raises Alarm

“Murweh Shire Council is advising residents and visitors to Charleville and Augathella that Naegleria fowleri, a rare but potentially harmful organism, has recently been detected in the town water supplies,” read a statement from the council.
 

While Australia is known for its dangerous wildlife, Naegleria fowleri poses a unique threat. Unlike sharks, snakes, or crocodiles - whose encounters are often survivable thanks to effective medical interventions - N. fowleri has a 97% fatality rate, with most cases resulting in death within a week of symptom onset.

The amoeba infects humans when contaminated water enters the body through the nose, usually during swimming, diving, or nasal rinsing. It then travels along the olfactory nerve to the brain, where it rapidly begins destroying tissue. Victims typically develop symptoms such as high fever, severe headache, vomiting, confusion, seizures, and hallucinations within 24 hours.

Although it cannot infect people by drinking contaminated water or through skin contact, health authorities are urging residents to avoid getting water up their noses during activities like bathing, showering, or using hoses and sprinklers.
 

“There is minimal risk to the community as long as people don’t allow water to go up their nose,” a spokesperson from Queensland Health said.

Authorities are still investigating how the amoeba entered the treated water supply, as N. fowleri is typically found in warm, untreated freshwater or soil - not in chlorinated systems.

Globally, the infection remains rare. The U.S. Centers for Disease Control and Prevention (CDC) has reported 167 confirmed cases between 1962 and 2024, with only a handful of survivors. Nonetheless, the rising global temperatures linked to climate change are believed to be expanding the amoeba’s range and seasonality.

Recent international cases - including the death of a child in South Carolina and a water-skiing fatality in Missouri - have reignited concern over N. fowleri’s presence in recreational waters.

Although treatment options such as amphotericin B, antifungal agents, induced hypothermia, and steroids exist, early diagnosis is extremely rare, and most patients succumb to the infection within 7 to 10 days.
 

Local officials have issued a list of precautions to residents, including:

• Avoid getting water up your nose during showers or baths

• Supervise children to prevent unsupervised water play

• Do not use untreated water for nasal rinsing or sinus care

• Avoid jumping or diving into warm freshwater sources

As climate conditions continue to shift, scientists warn that Naegleria fowleri may become a more frequent and widespread public health concern.

The situation in Queensland is ongoing. Further testing and monitoring of the water systems in Charleville and Augathella are underway.