Amoebic meningitis is an infection of the brain and its lining known as the meninges. It is a very rare form of meningitis and usually occurs when a person has ingested water which is dirty and unfiltered.
The amoeba that causes the infection occurs in shallow surface waters and badly maintained swimming pool, spas, still river beds and lakes and is usually seen in warmer climates.
Infection occurs when infected water enters the nose. This can happen when diving, jumping or swimming in fresh water. The amoeba then invades the brain and meninges through the nose. This is a rare disease affecting mainly young active people. It is almost always fatal.