ArticleBMJ public health2026
Awareness and acceptance of malaria vaccines by caregivers of under-5 children in Abia State, Nigeria: a mixed methods study.
Article in BMJ public health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Malaria remains a leading cause of under-5 mortality in Nigeria, with Abia State exemplifying hyperendemic transmission. The 2024 introduction of the R21/Matrix-M and RTS,S/AS01 vaccines offers promise, but evidence on caregiver awareness and acceptance in the non-pilot South-East region to inform equitable rollout is scarce. Methods: We conducted a mixed-methods study from June to August 2025 among 618 caregivers of under-5 children engaged with the routine immunisation programme in Abia State. Quantitative cross-sectional surveys assessed awareness (knowledge of malaria vaccines) and acceptance (willingness on Likert scales), and inferential analysis was carried out using logistic regression. Qualitative in-depth interviews (n=28) and focus group discussions (n=6, 50 participants) explored perceptions using thematic analysis. Triangulation was applied to integrate the findings. Results: Awareness overall was low (38.2%; 95% CI 34.5% to 42.0%) but highest among urban educated caregivers (52.3%). However, acceptance was high (88.7%), driven by child protection (67.4%) and provider trust (59.8%). Barriers included fears of side effects (51.4%) and misinformation (18.7%). Significantly, education (adjusted OR (AOR)=3.28) and urban residence (AOR=1.78) predicted awareness, and income (AOR=2.05) and awareness status (AOR=6.92) influenced acceptance. Qualitative themes corroborated quantitative findings: 'fragmented information' explained rural gaps and 'maternal instinct' amplified willingness to accept. Conclusion: Based on our findings, caregivers demonstrated strong acceptance of malaria vaccines despite critically low awareness, a disparity fuelled by information gaps and socio-demographic inequities such as low education and rural residence that threaten vaccine rollout and malaria elimination goals. Consequently, this pioneering mixed-methods study recommends that specific channels that leverage primary healthcare centre providers and community leaders for information dissemination should be used, given the high levels of trust, to ensure malaria vaccine uptake and accelerate progress in reducing under-5 deaths.
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