
Warm-Water Menace: The Brain-Eating Amoeba's Global Reach
Naegleria fowleri is a heat-loving amoeba found in warm freshwater and hot springs that can invade the brain through the nose, causing primary amoebic meningoencephalitis (PAM), a typically fatal disease that remains extremely rare. Infections are linked to swimming and nasal exposure in warm waters, with symptoms that escalate from headaches and nausea to confusion, seizures, and coma. The parasite is worldwide in warm climates and may spread with rising temperatures, though recent outbreaks show treatment can save lives: in Kerala in 2025, around 200 PAM patients were treated with antiparasitic and antifungal drugs, and more than half of those with known outcomes survived. Prevention includes nose clips or holding the nose when in warm water; transmission is not person-to-person and is not caused by swallowing water.





