Meningococcal meningitis is a bacterial form of meningitis, a serious infection of the thin lining that surrounds the brain and spinal cord.

脑膜炎球菌性脑膜炎是一种细菌形式的脑膜炎，由于围绕大脑和脊髓的很薄的内皮发生严重感染而造成。

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In the same period of 2001 there were 79 confirmed cases of group C meningococcal infection and three deaths.

BBC: Syringe

"It is important that the possibility of meningococcal infection is considered in individuals who have recently returned from Saudi Arabia, " said Professor Donaldson.

BBC: Returning pilgrims fight meningitis

In the first nine months of 1999, before the immunisation campaign started, there were 551 confirmed cases of group C meningococcal infection and 47 deaths.

BBC: Syringe