Brain-eating amoeba cases in Kerala: How an Indian state is battling a rare disease

In Kerala this year, more than 70 people have been diagnosed and 19 have died from the brain-eating amoeba.

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Just days earlier, the Dalit (formerly known as untouchables) woman, who earned her living bottling fruit juices in a village in Malappuram district, had complained of nothing more alarming than dizziness and high blood pressure. Doctors prescribed pills and sent her home. But her condition spiralled with terrifying speed: uneasiness gave way to fever, fever to violent shivers, and on 5 September - the main day of the festival - Sobhana was dead.

The culprit was Naegleria fowleri - commonly known as the brain-eating amoeba - an infection usually contracted through the nose in freshwater and so rare that most doctors never encounter a case in their entire careers. "We were powerless to stop it. We learnt about the disease only after Sobhana's death," says Ajitha Kathiradath, a cousin of the victim and a prominent social worker.

In Kerala this year, more than 70 people have been diagnosed and 19 have died from the brain-eating amoeba. Patients have ranged from a three-month-old to a 92-year-old man.

Normally feeding on bacteria in warm freshwater, this single-cell organism causes a near-fatal brain infection, known as primary amoebic meningoencephalitis (PAM). It enters through the nose during swimming and rapidly destroys brain tissue.