In April 2019, Gilimbeta took her daughter Lusitana to a rural health facility on the outskirts of Lilongwe, Malawi, for vaccination. At the time, she did not realize that her infant daughter was being written into history: the 5-month-old was the first child to receive the world’s first malaria vaccine (RTS,S/AS01 or RTS,S) as part of the WHO-coordinated Malaria Vaccine Implementation Programme.