This model simulates the spread of an acute infection through a population after one infected person enters a community. The infection is never fatal (everyone recovers), and once you have been infected, you are immune from reinfection. The model calculates the number of people that are susceptible to infection, number of those who are infected, and the amount recovered. This model is based on an example in Business Dynamics (Sterman, 2000).
Two models are provided. One treats the populations continuously, and one treats the populations discretely. The continuous model requires a smaller timestep to achieve the same results (and is only valid for large populations).
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