Are there any complications of the Hib infection?

Yes, complications of Hib infection can develop quickly and, if left untreated, can be life-threatening.
 

Some complications include:

• meningitis (inflammation of the lining of the brain and spinal cord)
• epiglottitis (inflammation of the flap and the top of the windpipe) 
• pneumonia (infection of the lungs)
• osteomyelitis (infection of the bones and joints)
• cellulitis (infection under the skin, usually on the face)