R21/MATRIX malaria vaccine: awareness, perception, acceptability, and willingness to pay among caregivers of under-five children in endemic communities in Lagos, Nigeria

Despite the low awareness of the R21/MATRIX malaria vaccine, caregivers demonstrated a strong positive perception, high acceptability, and moderate willingness to pay. Targeted community awareness campaigns focused on the benefits and safety of the vaccine are essential to improve knowledge of the vaccine in endemic communities.