Primary amoebic meningoencephalitis.

Abstract
The 3rd case in the UK of primary amoebic meningoencephalitis is reported; it affected an 11 yr old girl. Six days before admission the girl swam in a pool fed by hot spring water in which the causative agent Naegleria fowleri was found. Early treatment with amphotericin B would seem to offer the only hope of recovery in this almost uniformly fatal infection.