Haemophilus influenzae type B immunization

Haemophilus influenzae type B immunization An immunization designed to prevent diseases caused by Haemophilus influenzae type B (HIB). In the US, the HIB vaccine is usually given at 2, 4, and 6 months of age, with a final booster at 12 to 15 months of age. The HIB vaccine rarely causes severe reactions, and it has almost eradicated HIB-related diseases in children.