The School of Public Health at the University of Cape Town, in partnership with the International Epidemiological Association (IEA), will host the 23rd World Congress of Epidemiology from 24-27 September 2024 (WCE2024). The theme of WCE2024 is "Epidemiology and complexity: challenges and responses," which will engage the full depth and breadth of methods and practice in contemporary epidemiology.