In this Q&A, Dr Kwaku Poku Asante, director of the Kintampo Health Research Centre in Ghana reflects on the potential implications of the RTS,S seasonal vaccination study findings for Ghana and other countries in the region. What is seasonal malaria and what challenges does it present to malaria control progress?Seasonal malaria refers to the period within which we have the most malaria cases and deaths, because of high transmission. During this rainy period of around four months, young children get bitten by mosquitos more frequently and end up with high levels...