Press space toshow and hide your options. The graph is a bit messed up and will add a healthy and immune or blue and grey square every other time.
The coding was done by me but the general idea and influence on character design was from a video from Primer linked here. Basically I only made this due to Primer so you should watch Primer's videos. https://www.youtube.com/watch?v=7OLpKqTriio (Copy then paste in web browser or look up Epidemic, Endemic, and Eradication Simulations)