The aim of this study is to implement the sensitivity to initial conditions, a principle of chaos theory. It entails that a small-scale fever can quickly become a large-scale pandemics. Its objective is to make a literary appropriation of experimental sciences. The theoretical framework of this reflection is chaos theory: scientific theory which holds that behind the façade of order lies a degree of disorder. Specifically to this work, the ‘Butterfly Effect’ supposes first the exploration of the initial health condition of Willem Storm, describing a state of perfect healthiness. Second, the work focuses on the outbreak of a fever indicating a small disturbance in the initial condition. Third, the reflection shows how, through convection and flow, the small fever erupting in Africa quickly becomes a global plague.