Haemophilus influenzae meningitis is a bacterial infection of the membranes covering the brain and spinal cord (meninges).
Aseptic meningitis Meningitis Meningitis - cryptococcal Meningitis - Gram-negative Meningitis - meningococcal Meningitis - pneumococcal Meningitis - staphylococcal Meningitis - tuberculous
H. influenzae meningitis; H. flu meningitis
Causes, incidence, and risk factors
H. influenzae meningitis is caused by Haemophilus influenzae bacteria. These bacteria should not be confused with the disease
H. influenzae meningitis may occur after an upper respiratory infection. The infection usually spreads from the respiratory tract to the bloodstream, and then to the meninges. At the meninges, the bacteria produce infection and inflammation, causing serious illness and sometimes death.
Risk factors include:
- Ear infection (
- Family member with an H. influenzae infection
- Native American race
- Placement in day care
- Sinus infection (
- Sore throat (
- 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, Assistant Professor in Medicine, Harvard Medical School, Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.