基于区块链的疫苗信息化溯源体系研究

Blockchain-Based Vaccine Informatization Traceability System

【目的/意义】疫苗是保障人民生命健康安全的重要屏障,关系到公共卫生安全和国家安全,同时也是疫情防控的有效手段,但仍面临疫苗可信溯源、疫苗犹豫等关键难题,需进一步加强疫苗信息化溯源体系建设。【方法/过程】基于区块链技术理论研究,通过模型构建的方法,针对性地设计了疫苗流通到接种全周期的区块链追溯机制,进一步设计了疫苗流通管理的联盟链网络结构,并提出了疫苗接种信息链式管理模式,最后基于FISCO BCOS框架对溯源体系进行了实现。【结果/结论】结果验证了该体系的可行性,同时研究成果有利于切实维护疫苗流通接种秩序,辅助疫苗管理的监管决策,增强公众对疫苗安全的信任,为实际应用提供了一定的借鉴。【创新/局限】区块链技术赋能于疫苗管理,实现了疫苗信息的正向存证追踪与反向溯源监管,并推动了在疫情防控背景下的疫苗信息化溯源场景应用。

【Purpose/significance】Vaccines are an important barrier to ensure the safety of people's lives and health,and are related to public health security and national security,as well as an effective means of epidemic prevention and control,but still face key chal⁃lenges such as credible traceability of vaccines and vaccine hesitation,and need to further strengthen the construction of vaccine information-based traceability system【.Method/process】Based on the theoretical study of blockchain technology,the blockchain trace⁃ability mechanism of the whole cycle from vaccine circulation to vaccination is designed purposefully by the method of model construc⁃tion,the federated chain network structure of vaccine circulation management is further designed,and the chain management model of vaccination information is proposed,and finally the traceability system is implemented based on the FISCO BCOS framework.【Result/conclusion】The results verify the feasibility of the system,while the research results are conducive to effectively maintaining the order of vaccine distribution and vaccination,assisting the regulatory decision of vaccine management,enhancing public trust in vaccine safety,and providing certain reference for practical application.【Innovation/limitation】Blockchain technology empowers vaccine man⁃agement,realizes the positive deposition tracking and reverse traceability supervision of vaccine information,and promotes the applica⁃tion of vaccine informatization traceability scenarios in the context of epidemic prevention and control.