Fig. 3.

Bifurcation diagram obtained for the steady-state subunit populations S when the monomer source, $\lambda$, varies for two values the polymerization rate $\tau$. The other parameters are set as in Table 1 (Strain 1). The four different equilibria are depicted (disease-free equilibrium, endemic equilibrium, higher subunit only equilibrium $(S_{+})$, lower subunit only equilibrium $(S_{-})$). A thin line indicates an unstable equilibrium, whereas a bold line indicates a locally stable equilibrium. a$\tau =0.1$, b$\tau =0.23$