Modeling Saturated Diagnosis and Vaccination in Reducing HIV/AIDS Infection

Figure 1

(a) Plot of the function 𝐹(𝐼) with different values of the transmission coefficient 𝛽. (b) Backward bifurcation when the transmission coefficient 𝛽 varies. Other parameters: Π=100, 𝜇=1/45, 𝑤=1/20, 𝜖=0.4, 𝜉=0.6, 𝜎₁=0.7, 𝜎₂=0.4, 𝜓=0.5, 𝑞=1, ℎ=1, 𝜂₁=0.4, and 𝜂₂=0.7.

(a)

(b)