Nurse and self-taught developer building health technology in Cameroon. Blood donor coordination, WhatsApp health services, and AI in clinical decision-making.https://chifen.is-a.dev/https://chifen.is-a.dev/blog/what-240-people-taught-me-about-health-chatbots/https://chifen.is-a.dev/blog/what-240-people-taught-me-about-health-chatbots/Four months of running two WhatsApp health bots in Cameroon, and the one user behaviour that changed how I think about building them.Wed, 29 Jul 2026 00:00:00 GMT