机舱表面接触网络中的病毒传播机理和防控措施研究及验证

新发突发传染病疫情在全球范围内频频发生，严重危害人类健康和社会稳定。全球传染病的传播范围和全球航班形成的交通网络密切相关，因此飞机机舱内的传染病传播需要引起足够的重视。表面接触传播是机舱内病毒的主要传播途径之一，然而病毒的表面传播机理尚未明晰，导致缺乏基于证据的防控措施。申请人前期进行了飞机模拟舱内人员行为观察实验，发现机舱内的表面接触网络具有拓扑结构复杂并且节点异质性高的特点，但这些特点对病毒传播机理和防控措施的影响尚不明确。本课题拟针对空间封闭、人群密度高及环境表面种类繁多的机舱环境，基于机舱人员行为观察数据，采用理论分析、模拟实验和计算机仿真相结合的办法，探索病毒在表面接触网络的时间-空间分布规律，揭示网络拓扑结构与节点性质对病毒传播的动态作用规律，明晰与验证不同防控措施在病毒传播过程中起到的独立作用与协同作用。研究结果将有助于改善机舱环境并降低人群感染风险，科学精准地防控疫情。

Emerging infectious diseases occur frequently worldwide, seriously jeopardizing human health and social stability. The global spread of infectious diseases is closely related to the transportation network formed by global flights. Therefore, the spread of infectious diseases in aircraft cabins requires more attention. Fomite route is one of the main transmission routes of viruses in the aircraft cabins. However, the mechanisms of virus fomite transmission are not clear, leading to a lack of evidence-based control measures. Our previous experiments indicated that the surface touch network in the aircraft cabins has complex topological structure and heterogeneous node properties. Nevertheless, the potential virus transmission mechanisms underlying these characteristics and the corresponding control measures exploiting these characteristics have not been investigated yet. This project is intended for the aircraft cabin environments with closed space, high crowd density and wide variety of environmental surfaces. Based on the observation data of the behavior of people in the aircraft cabin, a unified research framework consisting of theoretical analysis, laboratory experiment and computer simulations will be proposed and carried out to explore the temporal-spatial distribution of viruses. The project will reveal the dynamic effects of surface touch network topology and node properties on virus transmission, as well as clarify and verify the independent and synergistic effects of different control measures in the virus transmission. The results will help to improve the aircraft cabin environment, reduce the infection risk of the susceptible, and control the epidemic scientifically and accurately.