Number of immune individuals against time, with the two communities being seeded with different discordant sets. (a) For the random-mixing stochastic model, where γ=4, zout=1.0 and (b) for the static network implementation, with γ=4 and zout=0.5. In both cases, the dominance of the different discordant sets is established in the communities. After a number of steps, one discordant set becomes dominant in the whole population.