Figure 5From: Numerical treatment of stochastic heroin epidemic model(a) In susceptible users’ fraction stochastic-NSFD converges to drug-free equilibrium, while the deterministic solution is the mean of stochastic NSFD solution for \(\mathrm{h}=0.01\). (b) In susceptible users’ fraction stochastic-NSFD preserves all dynamical properties for drug-free equilibrium for \(\mathrm{h}=100\). (c) In drug users’ fraction stochastic-NSFD converges to drug-present equilibrium, while deterministic solution is the mean of stochastic NSFD solution for \(\mathrm{h}=0.01\). (d) In drug users’ fraction stochastic-NSFD preserves all dynamical properties for drug-present equilibrium, while deterministic solution is the mean of stochastic NSFD solution for \(\mathrm{h}=100\)Back to article page