Human (SARS-CoV-2) testing or screening involves direct identification of infected individuals using authorized medical devices. Testing can be represented in the model as a reduction factor on the background infection rate (i.e., the probability that an infected individual gains access to the space). If a testing program was identified in the user inputs, it is represented by the selection “On” on the simulation parallel coordinates plot. This input then allows the user to toggle “Off” the initial testing program. If no testing program was selected on the initial setup, the input “On” defaults to a once-every-three-days antigen-testing program, applicable to unvaccinated personnel only.