Upon completion of an investigation of confirmed cases, asymptomatic infected persons, or cluster of cases, the county (district) level disease control and prevention agency should submit a case investigation form or investigation report to the online reporting system. The local CDC should review the submitted report and update it in a timely manner as the investigation progresses.
For investigations of clusters of cases, all basic information and all initial, interim, and final reports should be submitted in accordance with the National Protocol for Reporting and Management of Public Health Emergency Related Information (Trial). All key information of these investigations (see Appendix S2) should be included in the final report.
Acknowledgement: China CDC Weekly would like to thank Xijuan Fu of the WHO China Office, Canjun Zheng, Liping Wang, Zhaorui Chang, Zhongjie Li, Lance Rodewald, and Huilai Ma of China CDC for their contributions in translating and editing this document (1).
The Chinese document written by experts in China CDC Strategy and Policy Working Group for COVID-19 Emergency Response, including Zijian Feng of China CDC, Canjun Zheng, Zhaorui Chang, Fengfeng Liu, Mengjie Geng, Junling Sun, Sheng Zhou, Lu Ran, Huilai Ma, Liping Wang, Zhongjie Li of Division of Infectious Disease, Key Laboratory of Surveillance and Early Warning on Infectious Disease, China CDC, Hui Chen of National Center for Tuberculosis Control and Prevention, China CDC, Jingwei Jiang of National Institute for Communicable Disease Control and Prevention, China CDC, and Jian Li of National Center for AIDS Control and Prevention, China CDC.