Fig. 2
From: Codimension-one bifurcation and stability analysis in an immunosuppressive infection model

Existence of equilibria of system 2 and 4 in parametric space (c, r)
From: Codimension-one bifurcation and stability analysis in an immunosuppressive infection model
Existence of equilibria of system 2 and 4 in parametric space (c, r)