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A Simplified Epidemic Model

random initial number of infected people between 20 and
60
random initial number of epidemic types between 10 and
30
steps in epidemic (not cumulative)
100
150
200
250
300
350
400
450
500
random seed
This Demonstration shows the final distribution of the number of people with an epidemic illness in a community, according to a simplified epidemic model. In the model, there are randomly chosen epidemic illnesses and infected patients; with time, new people will be taken ill and some will recover or die. For example, at first we have five epidemic types and 10, 20, 30, 40, and 50 people are ill due to these epidemic types, respectively. For each step, there is only one change in the number of infected people; for example, 10, 20, 35, 40, and 50. The changes are governed by weighted selection. You can choose the number of stepsthey are not cumulative; the calculation is started from the beginning for different choices of the steps. This model is unrealistic and very simplified, but it can be a starting point for an epidemic model for many different simultaneous epidemics.
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