Why a PhD on Open Defecation? 555 Million People Still Do It!

In a world obsessed with AI, digital health, and data science, why would a scientist dedicate years of research to open defecation?
On this episode of Talking Science Africa, we host Dr. Moses Ntaro, who is graduating with a PhD in Public Health from Makerere University in February 2026. His research tackles a simple but urgent question: why are 555 million people globally still practicing open defecation and what can be done about it.