Virus Spread PDE Dynamic Model
The video in this post is the result of a dynamics simulation of virus spread in California. Blue color is susceptible population, red is virus density in the environment and green indicates recovered (presumed immune) population. The model numerically integrates a set of partial differential equations that describe the process of infection, recovery contamination, etc. Population density is from census data. You may wish to use the "full screen" option to get a better view.