The Hib vaccine is an injection that helps protect children from contracting infections due to Haemophilus influenzae type B (Hib), a bacterium that is capable of causing serious illness and potential death in children under age five.
Before the institution of routine infant vaccinations in the United States in the 1990s, Hib was the leading of bacterial meningitis among children younger than five years of age.
Hib vaccine (Haemophilus influenzae type B)-Hib is given as a series of four injections at ages two months, four months, and six months, with a booster dose at 12-15 months.
Before routine vaccination, Hib was the most common cause of bacterial meningitis and responsible for most of the cases of acquired mental retardation in the United States.
In the early 2000s vaccines have greatly reduced the incidence of Haemophilus influenzae type b (Hib) epiglottitis, and the disease is more frequently seen in adults.