Knowledge of amoebic dysentery causes anxiety for Ethan Scott, who has many misconceptions about single-celled organisms. With Nurse Marysol's guidance, players learn more about cells to ease Ethan Scott's fears that no cell can be trusted.
This storyline introduces the concept that all living things are made of cells, that different types of cells are specialized and can behave in different ways, and digs into some of the ways in which abnormal cells can cause disease.