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an acute infectious disease of children and young adults, caused by Neisseria meningitidis and characterized by fever, headache, photophobia, vomiting, nuchal rigidity, seizures, coma, and a purpuric eruption. Even in the absence of meningitis, meningococcemia can induce toxic phenomena such as vasculitis, disseminated intravascular coagulation, shock, and Waterhouse-Friderichsen syndrome due to adrenal hemorrhage; late complications include paralysis, mental retardation, and gangrene of the extremities.
bacterial meningitis caused by infection with Neisseria meningitidis, an acute infectious disease with seropurulent meningeal inflammation. It usually appears in epidemics, and symptoms are those of acute cerebral and spinal meningitis, usually with an eruption of cutaneous erythematous, herpetic, or hemorrhagic spots. The fulminating or malignant form accompanied with hemorrhagic apoplexy of adrenal glands is known as Waterhouse-Friderichsen syndrome. Also called cerebrospinal fever, epidemic cerebrospinal meningitis.
meningococcal meningitisMeningeal infection by Neisseria meningitidis, primarily of children, typically of rapid onset after an upper respiratory tract infection (URI).
More common in winter or spring, possibly with local epidemics at boarding schools or military bases.
Exposure to another person with meningococcal meningitis, recent URI.
meningococcal meningitisNeurology Meningeal infection by N meningococcus, primarily of children, typically of rapid onset after a URI Epidemiology Often in winter or spring, possibly with local epidemics at boarding schools or military bases Risk factors Exposure to another person with MM, recent URI. See Meningitis.
me·nin·go·coc·cal me·nin·gi·tis(mĕ-ning'gō-kok'ăl men-in-jī'tis)
An acute infectious disease affecting children and young adults, caused by Neisseria meningitidis; characterized by nasopharyngeal catarrh, headache, vomiting, convulsions, stiffness in the neck (nuchal rigidity), photophobia, constipation, cutaneous hyperesthesia, a purpuric or herpetic eruption, and the presence of Kernig sign. Fulminant form may cause Waterhouse-Friderichsen syndrome.