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Haemophilus influenzae type b (Hib)

Learn about Haemophilus influenzae type b, who is at risk, and how it spreads.

About Haemophilus influenzae type b

Haemophilus influenzae type b (Hib) is a bacteria that can cause meningitis, which is a serious infection of the fluid and lining that cover the brain and spinal cord, blood, and other parts of the body.

It can lead to lifelong disabilities and death.

Who is most at risk?

You have a higher risk of serious infection if you:

  • are age 4 years or younger
  • have a weak immune system
  • have no spleen or a spleen that isn’t working properly
  • have a cochlear implant

How it spreads

Hib spreads by coughing or sneezing. Some people don’t have symptoms but can still spread the disease.



Current as of: July 1, 2024
Author: Provincial Immunization Program, Alberta Health Services
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