If for whatever reason, your child was not vaccinated at the original suggested time ranges for immunizations, the CDC has recommended a catch-up schedule, with guidelines according to age group as follows:
Ages 4 months – 6 years
- Hepatitis B (HepB): Administer series to those not previously vaccinated, leaving a minimum of 4 weeks between doses 1 and 2 and 8 weeks between doses 2 and 3.
- Rotavirus: This vaccine is administered in three doses. The maximum age for the first dose is 14 weeks and 6 days, and the maximum age for the final dose is 8 months. Leave four weeks between each dose.
- Diptheria, Tetanus, Pertussis: Administer the first dose anytime after six weeks of age, with a minimum of 4 weeks between the first three doses. The fourth dose should be administered after 6 months have passed. A fifth dose is only necessary if child is under 4 years of age.
- Haemophilus influenzae type b conjugate vaccine (Hib): This vaccine, a series of three doses, is not generally recommended for children aged 5 and older. The minimum age for the first dose is 6 weeks.
- Pneumococcal: The first dose should not be administered earlier than 6 weeks. Healthy children between the ages of 24 through 59 months who have not received at least 1 dose of PCV on or after age 12 months should receive 1 dose.
- Inactivated poliovirus vaccine (IPV): This four-dose series should not begin earlier than 6 weeks, with four weeks between each of the first three doses. The final dose should be administered on or after the fourth birthday and at least 6 months following the previous dose.
- Measles, mumps and rubella: Do not administer doses until after 12 months of age. The second dose is recommended for ages 4 to 6, although children younger than 4 years can receive the second dose provided at least 28 days have passed since the first dose.
- Varicella: The first dose of this vaccine should not be given until after 12 months. Administer the second dose three months after the first.
- Hepatitis A vaccine (HepA): Recommended only for children who are older than 23 months and live where vaccination programs target older children or who are at an increased risk of infection.
- Tetanus and diptheria toxoids vaccine (Td) and tetanus and diptheria toxoids and acellular pertussis vaccine (Tdap): First dose should be administered after 7 years of age, with four weeks of time before the second dose. Administer the third dose after six months.
- Human Papillomavirus: Routing dosing intervals are recommended for this three-shot series for females ages 13 through 18. The second and third doses should be administered at 1 to 2 and 6 months, respectively, after the first dose.
- Hepatitis B; Inactivated poliovirus; Measles, mumps and rubella; and Varicella: Same guidelines as above.