Zhu Xiaoxiang, Wang Songwang, Li Yanfei, Cao Yu, Su Xuemei, Zhao Xiaotao
National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China.
Yunnan Institute of Parasitic Diseases, Pu'er City, Yunnan Province, China.
China CDC Wkly. 2024 May 17;6(20):457-462. doi: 10.46234/ccdcw2024.088.
The goal of this study is to analyze the epidemiological patterns of dengue fever across different districts and counties in Yunnan Province from 2010 to 2021.
In this study, we employed joinpoint regression analysis, spatial autocorrelation analysis, and space-time scan analysis to illustrate the spatio-temporal propagation and demographic influence of dengue fever, using both graphical and tabular presentations to clearly demonstrate the findings.
Yunnan Province reported 14,098 cases of dengue fever during the period from 2010 to 2021. Of these, 11,513 cases were caused by local transmission, 2,566 were imported internationally, and 19 were inter-provincial imports. Seasonal trends emerged, revealing a surge in incidences during the summer and autumn months. The sex ratio of male to female cases was 1:0.88, with a significant majority of 82.00% of cases involving individuals belonging to the age group of 15-60. Commercial service workers constituted the most impacted occupational group, forming 20.96% of total cases. A spatio-temporal scan identified significant clustering of dengue fever cases across space and time, with the most pronounced cluster observed in southern Yunnan, primarily between 2015 and 2019.
Dengue fever in Yunnan Province manifests as biennial outbreaks, underscoring the necessity for increased surveillance, particularly in counties bordering other regions.
本研究旨在分析2010年至2021年云南省不同区县登革热的流行病学模式。
在本研究中，我们采用连接点回归分析、空间自相关分析和时空扫描分析来说明登革热的时空传播和人口学影响，并用图表展示来清晰呈现研究结果。
2010年至2021年期间，云南省报告了14098例登革热病例。其中，11513例由本地传播引起，2566例为国际输入，19例为省际输入。呈现出季节性趋势，夏季和秋季发病率激增。病例的男女比例为1:0.88，其中82.00%的病例主要为15 - 60岁的人群。商业服务业工作者是受影响最严重的职业群体，占总病例数的20.96%。时空扫描发现登革热病例在空间和时间上存在显著聚集，在云南南部观察到最明显的聚集，主要集中在2015年至2019年期间。
云南省登革热呈两年一次的暴发态势，这凸显了加强监测的必要性，特别是在与其他地区接壤的县。
