The ameba can be found in: Bodies of warm freshwater, such as lakes and rivers, Geothermal (naturally hot) water, such as hot springs, Warm water discharge from industrial plants, Geothermal (naturally hot) drinking water sources, Swimming pools that are poorly maintained, minimally-chlorinated, and/or un-chlorinated, Water heaters. Naegleria fowleri grows best at higher temperatures up to 115°F (46°C).
The most distressing aspect is that the fatality rate has remained more than 95%. there have been 133 PAM infections from 1962 through 2014 with only three survivors. PAM cases were reported in the developed countries in people who swim in fresh water during the hot summer months. However, prolonged hot and dry periods due to global warming are causing higher freshwater temperatures.
The treatment of choice is an intravenous drug called amphotericin B. Amphotericin B may also be instilled directly into the brain. Miltefosine is a drug that has shown promise, and it is available through the Centers for Disease Control and Prevention. Treatment should be initiated as rapidly as possible, and immediate consultation with an infectious-diseases expert is highly recommended.