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[Correspondence] RTS,S/AS01 malaria vaccine and child mortality

RTS,S/AS01 malaria vaccination in young infants with and without a booster was associated with vaccine efficacies of 18–36%.1 The Lancet supports a large-scale vaccine roll-out after publication of these final results from a multicentre phase 3 study.2 We would argue for a more cautionary approach and call for additional studies before considering the inclusion of this vaccine in the routine Expanded Programme for Immunizations schedule.