Yanwu Zhang,1,* Buasiyamu Abudunaibi,2,* Yunkang Zhao,2 Dongliang Zhang,1 Yanru Chu,1 Song Lei,1 Xiaomin Gu,1 Xuying Lao,1 Xianhao Wu,1 Weitao Yao,1 Yi Chen,1 Feng Tong1 

1Department of Infectious Disease Control and Prevention, Ningbo Prefectural Center for Disease Control and Prevention, Ningbo, Zhejiang Province, People’s Republic of China; 2State Key Laboratory of Vaccines for Infectious Diseases, Xiang’ an Biomedicine Laboratory, School of Public Health, Xiamen University, Xiamen, Fujian Province, People’s Republic of China

*These authors contributed equally to this work

Correspondence: Feng Tong; Yi Chen, Ningbo Prefectural Center for Disease Control and Prevention, Ningbo, Zhejiang Province, People’s Republic of China, Email tongfeng1031@163.com; 30279068@qq.com

Objective: To conduct a comprehensive evaluation of the Dengue Fever Surveillance and Early Warning System deployed in Ningbo City during 2023, focusing on its capacity for timely identification and reporting of dengue fever cases, particularly imported cases from endemic regions.
Methods: A detailed data of patient clinical features and blood profile trends was collected from clinical records and surveillance reports, focusing on the rapid diagnostic processes and surveillance rigor. This study assessed the effectiveness of the system in identifying and reporting dengue cases and identified the limitations of the existing framework through a basic statistical approach.
Results: The system demonstrated timely identification and reporting of dengue fever cases, with a particular emphasis on imported cases. However, several limitations were identified, including the need for more precise monitoring criteria and improved coordination with medical entities.
Conclusion: The study underscores the critical role of public health bodies in managing disease outbreaks and advocates for enhanced methodologies to refine epidemic control efforts. The findings contribute to the advancement of early warning mechanisms and the improvement of proactive infectious disease monitoring in metropolitan environments, providing valuable insights for fortifying the Dengue Fever Surveillance and Early Warning System in Ningbo City.

Keywords: Dengue fever, Imported, Surveillance, Early-warning