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Recommended Catch-up Immunization Schedule for Children and Adolescents Who Start Late or Who Are More than 1 Month BehindUnited States, 2024						Print
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										Back to Child and Adolescent Immunization Schedule home pageVaccines and Other Immunizing Agents in the Child Immunization Schedule
**How to use the schedule**
To make vaccination recommendations, healthcare providers should:
Determine recommended vaccine by age (**Table 1 – By Age**)
Determine recommended interval for catch-up vaccination (**Table 2 – Catch-up**)
Assess need for additional recommended vaccines by medical condition or other indication (**Table 3 – By Medical Indication**)
Review vaccine types, frequencies, intervals, and considerations for special situations (**Notes**)
Review contraindications and precautions for vaccine types (**Appendix**)
Review new or updated ACIP guidance (**Addendum**)Get email updatesDownload the SchedulePrint the schedule, color
Print the schedule, black & white
Download the mobile app**Vaccine Catch-Up Guidance**CDC has developed catch-up guidance job aids to assist healthcare providers in interpreting Table 2 in the child and adolescent immunization schedule.Children age 4 months through 6 years
The table below provides catch-up schedules and minimum intervals between doses for children whose vaccinations have been delayed. A vaccine series does not need to be restarted, regardless of the time that has elapsed between doses. Use the section appropriate for the child’s age. **Always use this table in conjunction with Table 1 and the Notes that follow.**
Vaccine
Minimum Age for Dose 1
Minimum Interval Between DosesDose 1 to Dose 2
Dose 2 to Dose 3
Dose 3 to Dose 4
Dose 4 to Dose 5Hepatitis B
Birth
**4 weeks**
**8 weeks and at least 16 weeks after first dose.** Minimum age for the final dose is 24 weeksRotavirus
**6 weeks** Maximum age for first dose is 14 weeks, 6 days.
**4 weeks**
**4 weeks**
Maximum age for final dose is 8 months, 0 daysDiphtheria, tetanus, and acellular pertussis
6 weeks
**4 weeks**
**4 weeks**
**6 months**
**6 months**A fifth dose is not necessary if the fourth dose was administered at age 4 years or older ***and*** at least 6 months after dose 3*****Haemophilus influenzae* type b
6 weeks
**No further doses needed**
if first dose was administered at age 15 months or older.**4 weeks**if first dose was administered before the 1st birthday.**8 weeks (as final dose)**
if first dose was administered at age 12 through 14 months.
**No further doses needed**
if previous dose was administered at age 15 months or older**4 weeks**
If current age is younger than 12 months ***and*** first dose was administered at younger than age 7 months ***and*** at
least 1 previous dose was PRP-T (ActHib®, Pentacel®, Hiberix®), Vaxelis® or unknown**8 weeks and age 12 through 59 months (as final dose)**
if current age is younger than 12 months ***and*** first dose was administered at age 7 through 11 months;**OR**
if current age is 12 through 59 months ***and*** first dose was administered before the 1st birthday, ***and*** second dose was administered at younger than 15 months;**OR**
if both doses were PedvaxHIB® and were administered before the 1st birthday
**8 weeks (as final dose)**
This dose only necessary for children age 12 through 59 months who received 3 doses before the 1st birthday.Pneumococcal conjugate
6 weeks
**No further doses needed**
for healthy children if first dose was administered at
age 24 months or older**4 weeks**
if first dose administered before the
1st birthday**8 weeks (as final dose for healthy
children)**
if first dose was administered at the
1st birthday or after
**No further doses needed**
for healthy children if previous dose was administered at age 24 months or older**4 weeks**
if current age is younger than 12 months and previous dose given at <7 months old**8 weeks (as final dose for healthy children)**
if previous dose given between 7-11 months (wait until at least 12 months old);**OR**
if current age is 12 months or older ***and*** at least 1 dose was administered before age 12 months
**8 weeks (as final dose)**
This dose is only necessary for children age 12 through 59 months regardless of risk, or age 60 through 71 months with any risk, who received 3 doses before age 12 months.Inactivated poliovirus
6 weeks
**4 weeks**
**4 weeks**
if current age is <4 years**6 months****(as final dose)** if current age is 4 years or older
**6 months****(minimum age 4 years for final dose)**Measles, mumps, rubella
12 months
**4 weeks**Varicella
12 months
**3 months**Hepatitis A
12 months
**6 months**Meningococcal ACWY
2 months MenACWY-CRM
2 years MenACWY-TT
**8 weeks**
See notes
See notes
**Top of Page
Children and adolescents age 7 through 18 years
Vaccine
Minimum Age for Dose 1
Minimum Interval Between DosesDose 1 to Dose 2
Dose 2 to Dose 3
Dose 3 to Dose 4Meningococcal ACWY
Not Applicable (N/A)
**8 weeks**Tetanus, diphtheria; tetanus, diphtheria, and acellular pertussis
7 years
**4 weeks**
**4 weeks**
if first dose of DTaP/DT was administered before the 1st birthday**6 months (as final dose)**
if first dose of DTaP/DT or Tdap/Td was administered at or after the 1st birthday
**6 months**
if first dose of DTaP/DT was administered before the 1st birthdayHuman papillomavirus
9 years
**Routine dosing intervals are recommended.**Hepatitis A
N/A
**6 months**Hepatitis B
N/A
**4 weeks**
**8 weeks *and* at least 16 weeks after first dose.**Inactivated poliovirus
N/A
**4 weeks**
**6 months**
A fourth dose is not necessary if the third dose was administered at age 4 years or older ***and*** at least 6 months after the previous dose.
A fourth dose of IPV is indicated if all previous doses were administered at <4 years **OR** if the third dose was administered <6 months after the second dose.Measles, mumps, rubella
N/A
**4 weeks**Varicella
N/A
**3 months** if younger than age 13 years.**4 weeks** if age 13 years or olderDengue
9 years
**6 months**
6 months
To make vaccination recommendations, healthcare providers should:
Determine recommended vaccine by age (**Table 1 – By Age**)
Determine recommended interval for catch-up vaccination (**Table 2 – Catch-up**)
Assess need for additional recommended vaccines by medical condition or other indication (**Table 3 – By Medical Indication**)
Review vaccine types, frequencies, intervals, and considerations for special situations (**Notes**)
Review contraindications and precautions for vaccine types (**Appendix**)
Review new or updated ACIP guidance (**Addendum**)Recommended by the Advisory Committee on Immunization Practices (ACIP) and approved by the Centers for Disease Control and Prevention (CDC), American Academy of Pediatrics (AAP), American Academy of Family Physicians (AAFP), American College of Obstetricians and Gynecologists (ACOG), American College of Nurse-Midwives (ACNM), American Academy of Physician Associates (AAPA), and National Association of Pediatric Nurse Practitioners (NAPNAP).
The comprehensive summary of the ACIP recommended changes made to the child and adolescent immunization schedule can be found in the January 11, 2024 *MMWR*.
**Report**
Suspected cases of reportable vaccine-preventable diseases or outbreaks to your state or local health department
Clinically significant adverse events to the Vaccine Adverse Event Reporting System (VAERS) at www.vaers.hhs.gov or (800-822-7967)**Questions or comments**
Contact www.cdc.gov/cdc-info or 800-CDC-INFO (800-232-4636), in English or Spanish, 8 a.m.–8 p.m. ET, Monday through Friday, excluding holidays.
**Helpful information**
Complete Advisory Committee on Immunization Practices (ACIP) recommendations
ACIP Shared Clinical Decision-Making Recommendations
General Best Practice Guidelines for Immunization (including contraindications and precautions)
Vaccine information statements
Manual for the Surveillance of Vaccine-Preventable Diseases (including case identification and outbreak response)Top of Page
							
					
							Last Reviewed:  November 16, 2023						Source: 	National Center for Immunization and Respiratory Diseases
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For Healthcare Providersplus icon
Child & Adolescent Immunization Scheduleplus icon
Vaccines in the Schedule
Table 1 – By Age
Table 2 – Catch-up
Table 3 – By Medical Indication
Notes
Appendix
Addendum
Adult Immunization Scheduleplus icon
Vaccines in the Schedule
Table 1 – By Age
Table 2 – By Medical Indication
Notes
Appendix
Addendum
Schedule Changes & Guidance
Resourcesplus icon
Schedule-Related Resources
For You and Your Familyplus icon
Schedule for Infants and Children (Birth – 6 Years)
Schedule for Preteens and Teens (7 Years – 18 Years)


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