Childhood Immunization Schedule (2005)

Haemophilus influenzae type b (HIB) conjugate vaccine

Three HIB conjugate vaccines are licensed for infant use. If PRP-OMP (PedvaxHIB (registered product) or ComVax (registered product) [Merck]) is administered at ages 2 and 4 months, a dose at age 6 months is not required. DTaP/HIB combination products should not be used for primary immunization in infants at ages 2, 4, or 6 months but can be used as boosters after any HIB vaccine. The final dose in the series should be administered at age greater than or equal to 12 months.

Measles, mumps, and rubella vaccine (MMR)

The second dose of MMR is recommended routinely at age 4 to 6 years but may be administered during any visit, provided at least 4 weeks have elapsed since the first dose and both doses are administered beginning at or after age 12 months. Those who have not previously received the second dose should complete the schedule by age 11 to 12 years.

Varicella vaccine

Varicella vaccine is recommended at any visit at or after age 12 months for susceptible children (i.e., those who lack a reliable history of chickenpox). Susceptible persons age greater than or equal to 13 years should receive 2 doses, administered at least 4 weeks apart.

Pneumococcal vaccine

The heptavalent pneumococcal conjugate vaccine (PCV) is recommended for all children age 2 to 23 months and for certain children aged 24 to 59 months. It is also recommended for certain children age 24 to 59 months. The final dose in the series should be given at age greater than or equal to 12 months. Pneumococcal polysaccharide vaccine (PPV) is recommended in addition to PCV for certain high-risk groups. See MMWR 2000-49(RR-9)-1-35.