The appendix for dynamic model of respiratory infectious disease transmission by population mobility based on city network

First, a scale-free city network was established, and the shortest path between any two nodes was determined. Second, the movement path of tourists was designed based on the shortest path. Subsequently, every infected person's information, such as the city, infection time, onset, and hospitalisation, was confirmed based on their movement path. Third, the features of the transmission path and time distribution of the epidemic were characterised after summarising the information. Finally, the reliability of the model was verified.首先，构建无标度城市网络（scale-free city network），并确定任意两节点间的最短路径。其次，基于该最短路径设计游客的移动路径。随后，依据游客的移动路径，逐一确认每一位感染者的相关信息，包括所在城市、感染时间、发病时间及住院时间。第三，在汇总全部信息后，刻画传染病的传播路径及时序分布特征。最后，对所构建模型的可靠性进行验证。