Ya Ngoné is a fish vendor and lactating mother who lives and works in Djilor, a village not far from the sea in Senegal. She is very careful about hand hygiene and is supported in these good pratices by her mother, Daba. Daba is always encouraging women to build tippy-taps (a simple hand-washing system) by their homes and to always wash their hands at the five critical moments: before eating, before feeding the baby, before preparing food, after using the toilet, and after cleaning the baby.