[目的/意义] 探究突发公共卫生事件中健康码信息共享难问题的形成机理，提出改进健康码信息资源共享的对策建议，助力疫情精准防控，完善信息资源共享机制的构建。[方法/过程] 采用扎根理论研究方法，以新冠肺炎疫情中的健康码为典型案例，对健康码相关政策文件、媒体报道及公众评论进行分析，构建健康码信息共享难问题的形成机理及对策模型。[结果/结论] 在突发公共卫生事件特征和健康码产品驱动因素作用下，健康码信息采集环节的采集方法和采集内容，信息处理环节的制码流程、更新纠错，信息应用环节的终端展示和精准研判，信息存储环节的保存和安全管理方式存在差异，综合作用导致健康码信息共享难现象的形成。从政策规范、技术平台、组织管理3个视角分析共享机制现状，提出系统化的对策建议，促进政府数字资源共享机制的构建。
[Purpose/significance] This paper aims to explore the formation mechanism of the difficulty in sharing health-code information in public health emergencies, so as to improve the epidemic prevention efficiency. At the same time, it puts forward measures to build the government digital resource sharing mechanism, which can provide reference for sharing management. [Method/process] Taking the health-code product in the COVID-19 epidemic as a typical case, using grounded theory research method, this paper analyzed the policy documents, media reports and public comments related to health-code sharing, and constructed a model of the formation mechanism of health-code information sharing problem and the countermeasures. [Result/conclusion] Under the influence of the public health emergency situation and the driving factors of the health-code product, there are many factors in the four steps that influence the sharing. The collection methods and contents in the information collection step, the code processing and update & error correction in the information processing step, the terminal display and accurate judgment in the information application step, and the preservation and safety management in information storage step are all different among many local governments. Meanwhile, all these steps combined together lead to the formation of information sharing difficulties. From the three perspectives of policy norms, technical platforms, and organization management, a systematic countermeasure is proposed to promote the construction of government digital resource sharing mechanism.
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