Meningitis - meningococcal

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Meningococcal lesions on the back

Meningococcal meningitis is an infection that results in swelling and irritation (inflammation) of the membranes covering the brain and spinal cord.

See also:

• Aseptic meningitis
• Meningitis
• Meningitis - cryptococcal
• Meningitis - Gram-negative
• Meningitis - H. influenzae
• Meningitis - pneumococcal
• Meningitis - staphylococcal
• Meningitis - tuberculous

Meningococcal meningitis

Meningococcal meningitis is caused by the bacteria Neisseria meningitidis (also known as meningococcus).

Most cases of meningococcal meningitis occur in children and adolescents. Meningococcus is the most common cause of bacterial meningitis in children and the second most common cause of bacterial meningitis in adults.

The infection occurs more often in winter or spring. It may cause local epidemics at boarding schools, college dormitories, or military bases.

Risk factors include recent exposure to meningococcal meningitis and a recent upper respiratory infection.

Review Date: 09/15/2010
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Jatin M. Vyas, PhD, MD, Instructor in Medicine, Harvard Medical School, Assistant in Medicine, Division of Infectious Disease, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).

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