Evidence map›Paper›PMID 31927563›Full record

ReviewInternational health2021

Taking stock of global immunisation coverage progress: the gains, the losses and the journey ahead.

C A Nnaji, A J Owoyemi, U A Amaechi, A B Wiyeh, D E Ndwandwe, C S Wiysonge

Abstract readReview
In one paragraph

Review in International health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Improving vaccination uptake among adolescents.The Cochrane database of systematic reviews · 2020
    Pooled it
  3. Country readiness in responding to COVID-19 Vaccine-Related Events (VREs) in Malawi.Malawi medical journal : the journal of Medical Association of Malawi · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

C A NnajiSchool of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa.
A J OwoyemiDepartment of Biomedical and Health Information Sciences, University of Illinois at Chicago, Chicago, United States of America.
U A AmaechiStrategy, Investment and Impact Division, Global Fund to Fight AIDS, Tuberculosis and Malaria, Geneva, Switzerland.
A B WiyehCochrane South Africa, South African Medical Research Council, Cape Town, South Africa.
D E NdwandweCochrane South Africa, South African Medical Research Council, Cape Town, South Africa.
C S WiysongeSchool of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa.

Funding

World Health Organization
6 · The paper itself

Abstract

Despite the enormous benefits of vaccination, global immunisation coverage progress has stalled and remains suboptimal in many countries. In this commentary, we review the recently published update of the World Health Organization and United Nations Children's Fund Estimates of National Immunization Coverage. We highlight trends in which, despite substantial gains made in improving immunisation coverage at the global level, there remain numerous challenges with reaching and sustaining optimal coverage. We contextualise the trends by exploring plausible supply- and demand-side root causes. Based on these, we stress the need for targeted, context-appropriate strategies for reaching and maintaining optimal immunisation coverage.

Indexed as

Immunization ProgramsVaccination CoverageChildGlobal HealthHumansUnited NationsVaccinationWorld Health Organization

Identifiers

PMID31927563
PMCPMC8643426

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.