Simulation of virus spread

Simulation for spread of a virus. White are susceptible and yellow are infected people. The people move around the area randomly in a fixed area, and it is always in a scene of 20 people, with one extra person infected. Any susceptible within the range of a infected person have a certain probability of getting infected (current average mask effectiveness of general mask used in public) the longer they are in each others range. They have a chance of getting detected and removed when infected due ...