There are currently two brands of the HiB vaccine available in the United States: ActHIB and PedVaxHIB. (A third brand of the HiB vaccine, HibTITER, was discontinued in 2007.) Both of the available brands are polysaccharide conjugate vaccines and are given intramuscularly by an injection. (Remember that it is not possible to contract the disease from a polysaccharide vaccine.) The recommended schedule for ActHIB is to give the vaccine at two, four, and six months, plus another booster at twelve to fifteen months. The PedVaxHIB brand has a similar schedule, except that it does not require a dose at six months. There is a catch-up schedule available if your child starts the sequence late and missed some of the earlier doses.
Although the HiB vaccine is not usually given after age five, in certain circumstances, the HiB vaccine is recommended for older children and adults. These special circumstances include sickle cell disease, removal of the spleen, or certain cancer treatments.