Africa: African countries should unite for drug development

African nations must pool resources to promote local pharmaceutical innovation, say Ibrahim Assane Mayaki and Carel IJsselmuiden. Africa bears a quarter of the world's disease burden, yet accounts for less than one per cent of global expenditure on health. About half of the continent's population lacks access to essential medicines and the few drugs that are available often come from outside — Sub-Saharan Africa imports nearly 90 per cent of its medicines.