[The Conversation Africa] The approval of two malaria vaccines - the RTS,S/AS01 vaccine in 2021 and the R21/Matrix-MTM vaccine in 2023 - will help control, and eventually help eradicate, a disease that causes more than 600,000 deaths annually. Nearly 2 million children in Ghana, Kenya and Malawi have been vaccinated with the RTS,S/AS01 vaccine. It will be rolled out to more African countries from early next year. The second vaccine, R21/Matrix-MTM, approved by the World Health Organization in October, will be ready for rollout in