Evidence map›Paper›PMID 41887666›Full record

ArticleBMJ global health2026

Evaluation of the first malaria vaccine introduction: ongoing learning opportunities during the introduction into routine immunisation in Cameroon.

Tchokfe Shalom Ndoula Josue Kedakse, Mohamed Kaba, Simon Franky Baonga, Franck Mboussou, Andreas Ateke Njoh, Adidja Amani, Gisèle Efouba, Jean Christian Kouontchou Mimbe, Arnaud Njinkeu, Kevin Sylvestre Yohou and 8 more

Abstract read
In one paragraph

Article in BMJ global health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Article
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

18 authors.

Tchokfe Shalom Ndoula Josue KedakseExpanded Program on Immunization, Ministry of Public Health Cameroon, Yaoundé, Centre, Cameroon.ORCID 0000-0003-0687-9928
Mohamed KabaWord Health Organization country office for Cameroon, Yaounde, Cameroon medkaba21@gmail.com.ORCID 0009-0003-1866-4788
Simon Franky BaongaWord Health Organization country office for Cameroon, Yaounde, Cameroon.ORCID 0009-0006-1321-4288
Franck MboussouWorld Health Organization Regional Office for Africa, Brazzaville, Congo.ORCID 0000-0002-9062-5084
Andreas Ateke NjohExpanded Program on Immunization, Ministry of Public Health Cameroon, Yaoundé, Centre, Cameroon.ORCID 0000-0002-5008-1414
Adidja AmaniWorld Health Organization Regional Office for Africa, Brazzaville, Congo.ORCID 0000-0002-4917-3995
Gisèle EfoubaExpanded Program on Immunization, Ministry of Public Health Cameroon, Yaoundé, Centre, Cameroon.
Jean Christian Kouontchou MimbeWord Health Organization country office for Cameroon, Yaounde, Cameroon.ORCID 0009-0001-2671-7283
Arnaud NjinkeuWord Health Organization country office for Cameroon, Yaounde, Cameroon.ORCID 0009-0004-8990-263X
Kevin Sylvestre YohouWord Health Organization country office for Cameroon, Yaounde, Cameroon.
Raoul Nembot MekouengExpanded Program on Immunization, Ministry of Public Health Cameroon, Yaoundé, Centre, Cameroon.ORCID 0009-0005-6279-5085
Mayuko TakamiyaDepartment of Immunization, Vaccines and Biologicals, World Health Organization, Geneva, Switzerland.ORCID 0000-0002-7792-2500
Mohamadu WirngoAgency for International Development, United States Government, Yaoundé, Centre, Cameroon.ORCID 0009-0002-6467-1869
Judith HedjeCenters for Disease Control and Pevention, Yaoundé, Cameroon.
Mohamed F JallohCenter for Public Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.ORCID 0000-0002-7206-8042
Jenny Anne WalldorfDepartment of Immunization, Vaccines and Biologicals, World Health Organization, Geneva, Switzerland.ORCID 0000-0002-6337-3512
Phanuel HabimanaWord Health Organization country office for Cameroon, Yaounde, Cameroon.
Benido ImpoumaWorld Health Organization Regional Office for Africa, Brazzaville, Congo.ORCID 0000-0001-6363-7146

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCameroon is the first country to introduce malaria vaccine (MV) into routine immunisation, following the pilot programme. The vaccine was introduced in 42 health districts across all 10 regions, with plans to scale up in additional districts in future. A mini-postintroduction evaluation (mini-PIE) was conducted to rapidly review the MV programme, make improvements and inform future strategies.

methodsA programme evaluation was conducted using desk review and field data collection with standardised interviews of immunisation staff and caregivers. A facilitated discussion was then conducted with key immunisation and malaria staff and partners using WHO intra-action review methodology.

resultsThe desk review found that completeness of monthly reports exceeded 95% in all regions in April 2024 except North-West and Adamawa (87%). Only 56% of eligible children received their first dose; however, coverage of the second and third doses was 31% and 28%, respectively. All 10 regions had high drop-out rates. Based on field data collection, 8 of 10 health facilities received communications materials for community awareness. Among caregivers interviewed, 88% (42/48) were aware of MV introduction (MVI); 60% (29/48) were informed by health workers and 81% (39/48) cited vaccine protection as the main reason to vaccinate children. 60% (29/48) knew the importance of continuing to use long-lasting insecticidal nets after malaria vaccination. During the facilitated discussion, 65% (n=37) of participants totally agreed that the mini-PIE methodology used was an effective way to identify challenges and lessons learnt.

conclusionsCameroon's MVI was largely successful, despite vaccine misinformation, demonstrating the importance of community dialogue and engagement in successful vaccine introduction. The mini-PIE methodology is recommended for other countries to adopt 4-6 months after introduction, including field work tailored to country needs and thorough desk review of key indicators conducted in advance to inform the facilitated discussion.

Indexed as

Immunization ProgramsMalariaMalaria VaccinesCameroonHealth Knowledge, Attitudes, PracticeHumansInfantProgram EvaluationMalaria VaccinesGlobal HealthMalaria

Identifiers

PMID41887666
PMCPMC13034378

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.