The spreadsheet allows the user to try any basic reproduction number (the average number of people an infected person will infect while he or she is contagious) and also vaccinated fraction of the population, e.g. for seasonal flu. The pdf file contains the instructions and the underlying mathematics (Runge-Kutta numerical method for interdependent differential equations).
You can visualize how non-pharmaceutical interventions (NPIs) such as social distancing can do more than flatten the curve, they can break the curve by reducing the basic reproduction number to less than 1.
You can visualize how non-pharmaceutical interventions (NPIs) such as social distancing can do more than flatten the curve, they can break the curve by reducing the basic reproduction number to less than 1.