A stochastic SEIRV epidemic simulator that runs in your browser. Pick two US states, pick measles or flu, and watch how the same germ behaves very differently depending on local coverage.
Click two states on the map (a third click replaces the oldest selection). Toggle the disease. Adjust the sliders if you want more or fewer replicates, a larger population, or a longer horizon. Then press Run.
The model, the math, and the honest caveats live in the companion post: Two States, One Pathogen: A Browser-Side Stochastic SEIRV Simulator →
For the model setup, the tau-leaping arithmetic, how to read the ensemble, and the caveats that come with a well-mixed population model, see the companion post: Two States, One Pathogen: A Browser-Side Stochastic SEIRV Simulator →