Vaccination Schedule for 18 Months

Booster Doses

• The Centers for Disease Control and Prevention (CDC) recommends a fourth dose of DTaP vaccine at 15-18 months of age as a booster following the 3-dose primary series given at 2, 4, and 6 months 1, 2, 3
• The CDC recommends that this DTaP booster dose should be given at least 6 months after the third dose 4, 5
• A booster dose of Hib conjugate vaccine is recommended at 12-15 months of age, which overlaps with the 1.5-year timeframe, and should be given at least 2 months after the last primary series dose 1, 2, 3, 4, 5
• Any Hib conjugate vaccine licensed for booster use can be administered 2, 3
• The fourth dose of IPV is recommended between 6-18 months 1, 2, 3

Pneumococcal Conjugate Vaccine

• A fourth dose of PCV is recommended at 12-15 months of age, according to the American Academy of Family Physicians (AAFP) and the Advisory Committee on Immunization Practices (ACIP) 6