Stability Analysis of Hepatitis B Virus Model with Incomplete Immunization of HepB Vaccine

Figure 2

The effect of vaccine efficacy on the number of (a) susceptible individuals, (b) latently infected, (c) acute infectors, and (d) chronic sufferers. The parameters are 𝜇=0.1; 𝜐=0.1; 𝜑=0.1; 𝛽=3; 𝜀=0.016; 𝛾₂=0.025; 𝜇₁=0.28; 𝜏=10; 𝜔=0.2; 𝑞=0.4; 𝛾₁=0.4; 𝜃=0.3; 𝑝=0.6; the initial values are 𝑆(0)=0.1; 𝐿(0)=0.05; 𝐼₁(0)=0.05; 𝐼₂(0)=0.05; 𝑉(0)=0.1; 𝑅(0)=0.1.

(a)

(b)

(c)

(d)