Establishment of surveillance system for serious clinical abnormal case/clustering

Objective To establish a surveillance system for serious clinical abnormal case/clustering based on hospital information system. Methods Based on the hospital information system, the daily related data in hospitals were collected automatically and then transmitted to the surveillance database for analysis and early detection/warning. Results The data of serious clinical abnormal case/clustering were successfully transmitted from hospitals to national database. Conclusion The operation of the surveillance system for serious clinical abnormal case/clustering is well in Shanghai, which would facilitate the detection of emerging diseases or diseases with unknown origins.