Appendix A

A

Appendix A-12

Catch-Up Guidance for Healthy1 Children

4 Months through 4 Years of Age

Pneumococcal Conjugate Vaccine: PCV

The table below provides guidance for children whose vaccinations have been delayed. Start with the child’s

age and information on previous doses (previous doses must be documented and must meet minimum 

age requirements and minimum intervals between doses). Use this table in conjunction with table 2 of the

Recommended Child and Adolescent Immunization Schedule for Ages 18 Years or Younger, found at 

www.cdc.gov/vaccines/schedules/hcp/child-adolescent.h

IF current 

age is

AND # of 

previous 

doses is

AND THEN Next dose due

4 through 

6 months

0 or 

unknown   Give Dose 1 today Give Dose 2 at least 4 weeks after Dose 1 

1

 It has been at least 

4 weeks since Dose 1 Give Dose 2 today Give Dose 3 at least 4 weeks after Dose 2

 It has not been at least 

4 weeks since Dose 1 No dose today Give Dose 2 at least 4 weeks after Dose 1

2

 It has been at least 

4 weeks since Dose 2 Give Dose 3 today Give Dose 4 (Final Dose) at 12 months of age or older 

 It has not been at least 

4 weeks since Dose 2 No dose today Give Dose 3 at least 4 weeks after Dose 2

7 through 

11 months

0   Give Dose 1 today Give Dose 2 at least 

4 weeks after Dose 1

1

Dose 1 was given 

before 7 months 

of age

It has been at least 

4 weeks since Dose 1 Give Dose 2 today

Give Dose 3 (Final Dose) at least 

8 weeks after Dose 2 and at 

12 months of age or older

It has not been 

4 weeks since Dose 1 No dose today Give Dose 2 at least 

4 weeks after Dose 1

Dose 1 was 

given at 

7 months or older

It has been at least 

4 weeks since Dose 1 Give Dose 2 today 

Give Dose 3 (Final Dose) at least 

8 weeks after Dose 2 and at 

12 months of age or older

It has not been

 4 weeks since Dose 1 No dose today Give Dose 2 at least 

4 weeks after Dose 1 

2

Dose 2 was given 

before 

7 months of age

It has been at least 

4 weeks since Dose 2 Give Dose 3 today

Give Dose 4 (Final Dose) at least 

8 weeks after Dose 3 and at 

12 months of age or older

It has not been 

4 weeks since Dose 2 No dose today Give Dose 3 at least 4 weeks after Dose 2

Dose 2 was 

given at 

7 months or older

 No dose today

Give Dose 3 (Final Dose) at least 

8 weeks after Dose 2 and at 

12 months of age or older

1 Refer to the notes of the Recommended Child and Adolescent Immunization Schedule for Ages 18 Years or Younger–United States, 2021, for immunization guidance 

for children at increased risk for pneumococcal disease. 

Reference: Recommended Child and Adolescent Immunization Schedule for Ages 18 Years or Younger–United States, 2021. 

www.cdc.gov/vaccines/schedules/downloads/child/0-18yrs-child-combined-schedule.pdf.

Revised February 2021
Appendix A

A

Appendix A-13

Catch-Up Guidance for Healthy1 Children

4 Months through 4 Years of Age

Pneumococcal Conjugate Vaccine: PCV

The table below provides guidance for children whose vaccinations have been delayed. Start with the child’s

age and information on previous doses (previous doses must be documented and must meet minimum 

age requirements and minimum intervals between doses). Use this table in conjunction with table 2 of the

Recommended Child and Adolescent Immunization Schedule for Ages 18 Years or Younger, found at 

www.cdc.gov/vaccines/schedules/hcp/child-adolescent.h

IF current 

age is

AND # of 

previous 

doses is

AND AND THEN Next dose due

12 through 

23 months 

0 or 

unknown   Give Dose 1 today Give Dose 2 (Final Dose) at least 8 weeks after Dose 1

1

Dose 1 was 

given before

12 months of age

It has been at least 

4 weeks since Dose 1 Give Dose 2 today Give Dose 3 (Final Dose) at least 

8 weeks after Dose 2

It has not been 

4 weeks since Dose 1 No dose today Give Dose 2 at least 4 weeks 

after Dose 1

Dose 1 was given 

at 12 months of 

age or older

It has been at least 

8 weeks since Dose 1

Give Dose 2 

(Final Dose) today No additional doses needed

It has not been 

8 weeks since Dose 1 No dose today Give Dose 2 (Final Dose) at least 

8 weeks after Dose 1

2

Both doses were 

given before 

12 months of age

It has been at least 

8 weeks since Dose 2

Give Dose 3 

(Final Dose) today No additional doses needed

It has not been 

8 weeks since Dose 2 No dose today Give Dose 3 (Final Dose) at least 

8 weeks after Dose 2

At least one dose 

was given at 12 

months or older

It has been at least 

8 weeks since Dose 2

Give Dose 3 

(Final Dose) today No additional doses needed

It has not been 

8 weeks since Dose 2 No dose today Give Dose 3 (Final Dose) at least 

8 weeks after Dose 2

Both doses 

were given at 12 

months or older2  No dose today No additional doses needed

3

All doses were 

given before

12 months of age

It has been at least 

8 weeks since Dose 3

Give Dose 4 

(Final Dose) today No additional doses needed

It has not been 

8 weeks since Dose 3 No dose today Give Dose 4 (Final Dose) at least 

8 weeks after Dose 3

1 or more doses 

were given at 

12 months of age 

or older

 No dose today No additional doses needed

1 Refer to the notes of the Recommended Child and Adolescent Immunization Schedule for Ages 18 Years or Younger–United States, 2021, for immunization guidance 

for children at increased risk for pneumococcal disease. 

2 Separated by at least 8 weeks.

Reference: Recommended Child and Adolescent Immunization Schedule for Ages 18 Years or Younger–United States, 2021. 

www.cdc.gov/vaccines/schedules/downloads/child/0-18yrs-child-combined-schedule.pdf.
Appendix A

A

Appendix A-14

Catch-Up Guidance for Healthy1 Children

4 Months through 4 Years of Age

Pneumococcal Conjugate Vaccine: PCV

IF current

age is

AND # of

previous

doses is

AND AND AND THEN Next dose due

24 through 

59 months

0    Give Dose 1

today

No additional 

doses needed

1

Dose 1 was

given before

1st birthday

 

Give Dose 2

(Final Dose)

today

No additional 

doses needed

Dose 1 was given

after 1st birthday

Dose 1 was given

before 2nd 

birthday

It has been at

least 8 weeks

since Dose 1

Give Dose 2

(Final Dose)

today

No additional 

doses needed

It has not been

at least 8 weeks

since Dose 1

No dose today

Give Dose 2 

(Final Dose)

at least 8 weeks 

after Dose 1

Dose 1 was given

after 2nd 

birthday

 No dose today No additional 

doses needed

2

Dose 1 was

given before

12 months of age

Dose 2 was given

before 1st 

birthday



Give Dose 3

(Final Dose)

today

No additional 

doses needed

Dose 2 was given

after 1st birthday

Dose 2 was

given before

2nd birthday

Give Dose 3

(Final Dose)

today

No additional 

doses needed

Dose 2 was

given after

2nd birthday

No dose today No additional 

doses needed

Dose 1 was

given after

12 months of age

  No dose today No additional 

doses needed

3

All 3 doses were

given before

12 months of age

 

Give Dose 4

(Final Dose)

today

No additional 

doses needed

1 or more doses

were given at

12 months or older

  No dose today No additional 

doses needed

1 Refer to the notes of the Recommended Child and Adolescent Immunization Schedule for Ages 18 Years or Younger–United States, 2021, for immunization guidance 

for children at increased risk for pneumococcal disease.

Reference: Recommended Child and Adolescent Immunization Schedule for Ages 18 Years or Younger–United States, 2021.

www.cdc.gov/vaccines/schedules/downloads/child/0-18yrs-child-combined-schedule.pdf.