Figure 2:

Diagram of our model. We sub-divide “Adult Devil” into four stages of the disease: Susceptible (devils without DFTD), Exposed (Devils who have been exposed to, but are not spreading DFTD), Infected (Devil who are spreading DFTD), and Diseased (Devils who are spreading DFTD and are heavily impacted by it). Note, we assume that Diseased devils do not reproduce.