Figure 1From: The asymptotic behavior of a stochastic SIS epidemic model with vaccination The solution of system ( 1.3 ) and system ( 1.1 ) with \(\pmb{\Delta t=0.001}\) , \(\pmb{R_{0} > 1}\) . The picture on the left represents the solution of system (1.3) with \(\sigma=0.9\), such that \(\sigma^{2}>{\beta^{2}}/{2(\mu+\gamma+\alpha)}\) and the other represents the solution of the corresponding undisturbed system (1.1).Back to article page