“…For example, the disease transmission coefficient in epidemic models was modified for meteorological factors because survivals and infectivity of many viruses and bacteria are better in damp conditions with little ultraviolet light [21]. Thus, many researchers have introduced parameter perturbation into epidemic models to show the effect of environmental white noise [14,24,25,31,30,4,5,6,13,29,34,16]. For example, Ji and Jiang [14] explored the long time behavior of a multigroup SIS model with stochastic perturbations.…”