近年来,国内外重大自然灾害事件和重大公共事件发生呈现出突发性、频繁性、破坏性大等新的特点[1]。由于重大突发事件常伴随着卫生事件的发生,人类健康受到了严重危险。重大突发事件中的卫生应急已越来越受到各国政府、学者及普通百姓的密切关注[2]。1卫生应急行动仍缺乏运用科学手段来科学统筹和动态处理 In recent years, major natural disasters and major public events both at home and abroad have emerged as new features, such as suddenness, frequentness and destructiveness [1]. As major emergencies are often accompanied by health emergencies, human health is at serious risk. The health emergency in major emergencies has drawn more and more attention from governments, scholars and common people in various countries [2]. 1 There is still a lack of scientific co-ordination and dynamic processing of health emergency response