371792.fig.003
Figure 3: Distribution of computers versus time when 𝑏 = 2 0 , 𝛽 = 0 . 0 2 , 𝛾 = 0 . 6 , 𝜇 = 0 . 1 , a n d 𝜎 = 7 . 5 , where 𝑅 0 = 2 . 8 6 > 1 and 𝜎 5 . 9 1 < 𝜎 satisfies the unstable condition for the virus equilibrium 𝐸 .