Centers for Disease Control and Prevention

National Center for Immunization and Respiratory Diseases

Photographs and images included in this presentation are licensed solely for CDC/NCIRD online and presentation use. No rights are implied or extended for use in printing or any use by other CDC CIOs or any external audiences.

Addition of an Addendum to the 

2023 Immunization Schedules for Children/Adolescents and Adults 

Sarah Schillie, MD, MPH, MBA

CAPT, US Public Health Service

Team Lead, Professional Education and Training, Immunization Services Division

Centers for Disease Control and Prevention

Advisory Committee on Immunization Practices

September 22, 2023

Atlanta, GA

The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease 

Control and Prevention. Photographs and images included in this presentation are licensed solely for CDC/NCIRD online and presentation use. No 

rights are implied or extended for use in printing or any use by other CDC CIOs or any external audiences.
Immunization Schedules: Overview

▪ Two separate schedules

– Child and adolescent schedule (age 

birth through 18 years)

– Adult schedule (age 19 years or older)

▪ Multiple sections that summarize 

and aid in implementation of 

approved ACIP policy 

– Cover Page

– Tables

– Notes

– Appendix

2 of 23 Immunization Schedules | CDC

www.cdc.gov/vaccines/schedules/index.html
Immunization Schedules: Overview, cont.

▪ Published in 3 formats:

– PDF, webpage, app

▪ Multiple professional organizations partner with CDC to approve schedules

– American College of Physicians (www.acponline.org)

– American Academy of Family Physicians (www.aafp.org)

– American College of Obstetricians and Gynecologists (www.acog.org)

– American College of Nurse-Midwives (www.midwife.org)

– American Academy of Physician Associates (www.aapa.org)

– American Pharmacists Association (www.pharmacist.com)

– Society for Healthcare Epidemiology of America (www.shea-online.org)

– American Academy of Pediatrics (www.aap.org)

– National Association of Pediatric Nurse Practitioners (www.napnap.org)

▪ Some professional organizations publish the schedules

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Traditional Publication Timeline

October November December January February

ACIP vote approves the 

immunization schedules

Professional organizations 

approve schedules

Draft and clear MMWR reports (both 

schedules) and Annals of Internal 

Medicine report (adult schedule only)

Schedules (3 formats),

MMWR Notice to Readers, &

Annals of Internal Medicine 

report published

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▪ Insurance reimbursement

▪ The ability of certain health care providers to administer 

immunizations

– Some states link pharmacists’ immunization authority to the schedule

▪Health care provider knowledge and practices related to 

immunization recommendations

Impacts of Timeliness of Schedule Publication

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▪ Must provide coverage for and must not impose any cost-sharing requirements 

(such as a copayment, coinsurance, or a deductible) for—

“Immunizations for routine use in children, adolescents, and adults that have in 

effect a recommendation from the Advisory Committee on Immunization 

Practices of the Centers for Disease Control and Prevention...” “...considered in 

effect after it has been adopted by the Director of the Centers for Disease 

Control and Prevention, and a recommendation is considered to be for routine 

use if it is listed on the Immunization Schedules of the Centers for Disease 

Control and Prevention)”

▪ ACA does not specify what defines the Immunization Schedule 

– Legally, CDC has discretion regarding what constitutes the immunization schedule

Affordable Care Act: Immunization Coverage

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3-Pronged Approach to Address Schedule Timeliness, 

Maximize Utility

Immediate 

Strategy

Addition of 

Addenda will help 

bring the schedule 

up-to-date

Short-term 

Strategy

Publish entirety of 

schedule soon after 

October ACIP vote

Longer-term 

Strategy

Consider sustainable approach to ensure 

schedule remains dynamic/responsive 

and current (proposal in early in CY24)

Ensure partner engagement in 

planning process

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Addition of Addenda to 2023 Immunization Schedules

▪ Contain ACIP recommendations that occurred after the 2023 

schedule was published

▪ Plan to release 2023 Immunization Schedules with Addenda next 

week

▪ With this addition, all ACIP recommendations will formally be part of 

the CDC Immunization Schedules

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▪Anticipate release of 2023 Immunization Schedules with 

Addenda next week

–Formally incorporate all ACIP recommendations into 2023 CDC 

Immunization Schedule

▪ Plan for short- and long-term sustainable strategies to address 

schedule timeliness

–Ensure partner engagement

Summary

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Acknowledgements 

Immunization Services Division and 

Health Education and Communication Branch staff, especially: 

• Neil Murthy

• Patricia Wodi

• Rosa Herrera

• Richard Quartarone

• Akiko Wilson

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For more information, contact CDC

1-800-CDC-INFO (232-4636)

TTY: 1-888-232-6348 www.cdc.gov

The findings and conclusions in this report are those of the authors and do not necessarily represent the 

official position of the Centers for Disease Control and Prevention.

Questions?
Additional Slides
▪ Adult Vaccine Assessment Tool

▪ Child and Adolescent Vaccine Assessment Tool

▪ Parent Friendly 

CDC Resources based off the Immunization Schedules