An experiment with SIR
https://www.geni.com/projects/Coronavirus-Simulation/4476309
The demo page might contain ads. So be sure that you're browsing safely.
A screenshot
The demo page:
https://fatiherikli.github.io/coronavirus-simulation
The simulation starts with NO SICK person.
https://towardsdatascience.com/infectious-disease-modelling-beyond-the-basic-sir-model-216369c584c4