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Guidance

Vaccination of people with uncertain or incomplete immunisation

Summary for health professionals and immunisation practitioners giving vaccinations.

Updates to this page

From:
UK Health Security Agency
Published:
1 September 2013
Last updated:
1 October 2026
Show all updates

  1. Updated to include those eligible for the RSV vaccine who are aged 65 to 74 in some clinical risk groups.

  2. New supporting guidance document for healthcare professionals added.

  3. Print versions updated to reflect changes to the RSV programme, all adult resident in care homes now eligible for RSV vaccination.

  4. Updated to reflect changes to the RSV programme, all adults resident in care homes now eligible for RSV vaccination.

  5. Algorithm updated to reflect updated pneumoccocal vaccine eligibility for immunocompromised individuals. A new larger format print version has also been added.

  6. Updated for use from 1 January 2026 in line with the introduction of MMRV

  7. Updated for September 2025 to reflect updated Shingles vaccine eligibility.

  8. Withdrawn the algorithm from 1 September 2024.

  9. Added 'Vaccination of individuals with uncertain or incomplete immunisation status: from 1 July 2025' text and print versions.

  10. Updated to reflect the introduction of RSV programmes from 1 September 2024.

  11. Removed 'Vaccination of individuals with uncertain or incomplete immunisation status: up to 31 August 2023'.

  12. Added 'Vaccination of individuals with uncertain or incomplete immunisation status: from 1 September 2023'.

  13. Updated algorithm.

  14. Updated section 8 - human papillomavirus vaccine.

  15. Added revised flowchart.

  16. Added 'Vaccination of individuals with uncertain or incomplete immunisation status (valid from 1 January 2020)'.

  17. Updated algorithm with revised wording for eligibility in HPV section.

  18. Added details on HPV universal and MMR programmes.

  19. Revised recommendation to only start course of rotavirus vaccine if child is under 15-weeks-old.

  20. Updated to reflect the introduction of the DTaP/IPV/Hib/HepB vaccine and other minor clarifications.

  21. Updated to clarify advice on MenB vaccine for children born on or after 1 July 2015.

  22. Updated algorithm: Vaccination of individuals with uncertain or incomplete immunisation status (effective from July 2016).

  23. Updated to include changes to meningococcal vaccine recommendations and dates of birth for flu and shingles vaccine eligible cohorts.

  24. Revised sections on MenC and HPV vaccine recommendations for those over 10 years of age and updates on the dates of birth for those eligible for flu and shingles vaccines.

  25. First published.

Applies to England

Documents

Vaccination of individuals with uncertain or incomplete immunisation status

HTML

Vaccination of individuals with uncertain or incomplete immunisation status (A3 Portrait)

Ref: UKHSA gateway number 2026337

PDF, 200 KB, 1 page

This file may not be suitable for users of assistive technology.

Request an accessible format
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Vaccination of individuals with uncertain or incomplete immunisation status (A4 Landscape)

Ref: UKHSA gateway number 2026337

PDF, 164 KB, 1 page

This file may not be suitable for users of assistive technology.

Request an accessible format
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Vaccination of individuals with uncertain or incomplete immunisation status: supporting guidance

HTML

Vaccination of individuals with uncertain or incomplete immunisation status: supporting guidance [print version]

PDF, 1.81 MB, 32 pages

This file may not be suitable for users of assistive technology.

Request an accessible format
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Details

This single page reminder based on Immunisation against infectious disease: the Green Book helps health professionals vaccinate people correctly to protect them and their families from disease.

Supporting guidance

This guide for healthcare professionals on the use of the vaccination of individuals with uncertain or incomplete immunisation status algorithm includes worked example scenarios to demonstrate use of this tool.

You can order a printed copy for free from the Find Public Health Resources service using product code: 126546AAEN001

An equivalent screening algorithm is available to download.

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