Figure 1
From: A hepatitis stochastic epidemic model with acute and chronic stages
Simulation of system (3) with time step and initial size of the population \(\Delta t=0.01\) and \((S(0),I_{1}(0),I_{2}(0),R(0) )= (0.4,0.3,0.2,0.1 )\) respectively
Theory and Modern Applications
Figure 1 | Advances in Difference Equations