Figure 1
From: Moment closure of infectious diseases model on heterogeneous metapopulation network
A metapopulation network model of SIS infections with individuals’ mobility. The model is composed of a heterogeneous network of subpopulations, connected by mobility processes. Individuals in each subpopulation stay one of the two states: one is susceptible; the other is infectious. Individuals can move from a subpopulation to another along links of network. Once there exist infectious individuals in a subpopulation, it becomes infectious. For infectious diseases, a susceptible individual can be infected at rate β and become infectious, while an infectious individual may recover at rate μ and be susceptible