SARS Spatial Transmission Pattern and Its Application to Design of Disease Surveillance and Control Information System
SARS空间传播模式及其在疫情监控信息系统设计中的应用

Based on activities of SARS control in China and theory of human-earth systems science, a logic model of transmission channels of pathogenic factors in the processes of interaction between human and earth, and a logic model of interaction between human and earth for SARS control are sequentially presented. According to the latter, the spatial transmission patterns of SARS in China are separated into 5 modes: 1) pathogen transferring mode from wild animals to human beings;2) contact infectious mode in family and community;3) infectious mode in hospitals and clinics;4) random diffusion mode in urban area, and 5) jumping transmission mode among cities, regions and countries. The last one among them is a very complicated and difficult one to be controlled. Therefore, the mode is the most important target and task to be controlled in SARS outbreak. Correspondingly, a recommendation on the response mechanism of public health emergencies in China and the conceptual structure of surveillance and control information system with the mechanism are presented in order to control the effects caused by the mode mainly and efficiently.