Brain-Eating Amoeba in Kerala: Key Facts, Risks & Precautions
Kerala has seen an unusual rise in confirmed infections of Naegleria fowleri (the “brain-eating amoeba”) in 2025, with dozens of cases and multiple deaths reported across the state. Naegleria fowleri causes primary amoebic meningoencephalitis (PAM), a rare but rapidly progressive and often fatal infection. This article explains the organism and disease, why Kerala is vulnerable and seeing growth in cases, what authorities are doing, and concrete precautions you and your community can take.
What is it?
The brain-eating amoeba (Naegleria fowleri) is a microorganism found in warm freshwater. It infects people when contaminated water enters through the nose, traveling to the brain and causing Primary Amoebic Meningoencephalitis (PAM) — a rare but usually fatal disease. Drinking contaminated water does not cause infection.
Kerala Situation (2025):
Kerala has reported an unusual rise in cases in 2025, with multiple deaths. Most are linked to swimming or bathing in contaminated freshwater or unsafe water use for nasal cleansing. State hospitals and universities have begun water-testing initiatives and awareness drives.
Why is it rising in Kerala?
- Climate & warm water: Kerala’s hot, humid climate and rising water temperatures create ideal conditions.
- Monsoon & stagnant water: Flooding and standing water increase exposure.
- Poorly maintained water systems: Unchlorinated wells and tanks can harbor the amoeba.
- Local practices: Bathing, swimming, or ritual ablutions in freshwater raise risk.
- Climate change: Longer warm seasons expand risk.
Symptoms to watch for:
- Severe headache, fever, nausea, vomiting, neck stiffness, confusion or seizures — usually within 1–12 days of exposure.
- Disease progresses rapidly; immediate hospital care is vital.
Precautions:
- Avoid swimming in warm, stagnant freshwater; prefer chlorinated pools.
- If swimming is unavoidable, use nose clips and avoid diving or submerging the head.
- For nasal rinsing (neti pot, ablution): use only boiled, distilled, or sterile water.
- Clean and chlorinate household water tanks regularly.
- Seek emergency care if symptoms appear after recent freshwater/nasal water exposure.
Community Steps:
Better water monitoring, chlorination, public education, and rapid testing are needed. Kerala has started specialized labs and awareness campaigns to tackle the spread.

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