03/09/2026
Before the Hib vaccine, Haemophilus influenzae type b was a leading cause of bacterial meningitis, pneumonia, and life-threatening infections in young children.
Thousands of kids were hospitalized each year, and many were left with permanent complications such as hearing loss or brain injury.
Vaccination dramatically changed that story making Hib disease rare in countries with strong immunization programs.
Keeping children up to date on routine vaccines helps protect them and prevents these serious infections from returning.