Weighted Immunization Strategy on Real Networks

In this paper, we propose a weighted immunization strategy on real networks with community structure. We first introduce the concept of bridge nodes on networks. It may be helpful for controlling the spread of epidemic to immunize the bridge nodes in the network with community structure. Then, we present the SIR model and the classic immunization model, and add the immunization of bridge nodes to the classic immunization model. Finally, we simulate the model by using the data of real community network, finding that to combine the bridge nodes and nodes with the most degree at some ratio contributes to the immunization. The ratio can be work out.