About Haemophilus influenzae Disease

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Haemophilus influenzae disease is a name for any infection caused by bacteria called H. influenzae.

Doctor observing an x-Ray of the chest.
Types of H. influenzae Infections
Three-dimensional (3D), computer-generated image, of a group of Gram-negative, Haemophilus influenzae, bacteria.
Causes, How It Spreads, and People at Increased Risk
Mother snuggling sick child.
Signs and Symptoms
Lumbar puncture to collect sample of cerebrospinal fluid. Copyrighted image.
Diagnosis, Treatment, and Complications
Doctor Placing A Band Aid On Baby's Thigh.
Prevention
Page last reviewed: March 4, 2022
Content source: National Center for Immunization and Respiratory Diseases, Division of Bacterial Diseases