ArticlePLOS global public health2026
Caregivers' willingness and factors influencing uptake of the malaria vaccine among under-five children at Masaka Regional Referral Hospital, Uganda.
Article in PLOS global 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
Uganda ranks third with the highest malaria cases globally, highlighting limitations in existing prevention efforts. Malaria vaccination is a key promising strategy to reduce both morbidity and severity among children under 5 (U5) years. In April 2025, Uganda introduced a four-dose R21 malaria vaccine for U5s. We assessed willingness to vaccinate with the malaria vaccine and associated factors among caregivers of U5s to support vaccine rollout in the targeted population. In March 2025, we conducted a cross-sectional study at the Maternal and Child Health unit of Masaka Regional Referral Hospital among 292 caretakers. We generated caretaker attendance lists daily to serve as sampling frames and developed a sampling interval. We used systematic sampling to obtain the total sample size. We administered a questionnaire assessing caregivers' willingness to vaccinate, and identified associated factors using modified Poisson regression. We interviewed 292 caretakers, 250(86%) were female and 249(85%) indicated willingness to vaccinate their children. Prior experience with adverse events following immunization (AEFIs) (adjusted prevalence ratio [aPR]=0.2,95%Confidence Interval [CI]0.05-0.5), having other relatives than biological parents as main decision makers (aPR 0.2, 95%CI0.04-0.9) and having tertiary education (aPR 0.14, 95%CI0.04-0.6) were associated with reduced willingness to vaccinate, while receipt of malaria Intermittent Preventive Treatment in pregnancy (IPTp) (aPR 6.2, 95%CI1.6-23) and trust in vaccine safety (aPR 13, 95%CI4.0-43) were associated with increased willingness to vaccinate. Majority of the caretakers were not aware of the malaria vaccine butwere willing to vaccinate their children when oriented. AEFI history, household decision-making roles, and education level were associated with reduced willingness, while having received malaria IPTp and trust in vaccine safety were associated with increased willingness to vaccinate. We recommended providing malaria vaccine information through antenatal care, preparing health workers to address the AEFI history and vaccine-safety concerns and prioritizing safety-focused messaging over general awareness messaging.
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