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Meningitis describes an inflammation of membranes that surround the brain (pia mater, arachnoid and the interposed cerebro spinal fluid). The inflammation may spread around the brain, spinal cord and the ventricles through the subarachnoid space (1). As such it represents a manifestation of a variety of diseases with varying severity.
Meningitis can be divided into:
Ninety percent of all cases of meningitis occur within the first five years of life, the peak incidence being in the six to twelve month age range.
Under the Health Protection (Notification) Regulations 2010: