Conceptualising undervaccinated populations in high-income settings: why consensus and clarity matter

The Lancet Regional Health - Europe 2026 Open access

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Authors: Sibylle Herzig van Wees, Ben Kasstan, Michael J. Deml, Ifrah Mohamed Ibrahim, Sandra Mounier-Jack, Michael R. Edelstein
DOI: 10.1016/j.lanepe.2025.101586
Cited by: 1
References: 8

Abstract

Routine immunisation coverage across high income countries is challenged by ongoing decline/attrition and persistent disparities.1 Terminology to describe groups with suboptimal vaccination rates has evolved from “hard-to-reach,” “marginalised,” and “disadvantaged” to “underserved.” Despite differing implicit assumptions, these terms are often used interchangeably, obscuring their distinct biases. Clarity in terminology is important for shaping programme delivery and outreach methods in ways that avoid stigmatising communities.

Fields of Study & Subjects

Vaccine Coverage and Hesitancy Global Maternal and Child Health Community Health and Development

Publication details

Journal / source
The Lancet Regional Health - Europe
Publisher
Elsevier BV
Volume
61
Pages
101586–101586
Publication date
9 January 2026
Language
EN