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Chinese Journal of Hygiene Rescue(Electronic Edition) ›› 2024, Vol. 10 ›› Issue (03): 165-172. doi: 10.3877/cma.j.issn.2095-9133.2024.03.007

• Health Emergency Managements • Previous Articles     Next Articles

Risk assessment and countermeasure on indigenous transmission of dengue fever caused by imported cases in China

Hongrui Zhai1, Shijian Zhou2, Yunlong Zheng3, Di Mu2, Xiaobo Liu4, Liang Lu4, Jiandong Li5, Xiaoxia Huang5, Qiulan Chen2,(), Yanping Zhang2,()   

  1. 1. Chinese Field Epidemiology Training Program (CFETP), Chinese Center for Disease Control and Prevention, Beijing 100050, China; Department of Acute Infectious Diseases, Qingdao Municipal Center for Disease Control and Prevention, Qingdao 266033, China
    2. Division of Infectious Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing 102206, China
    3. Department of Acute Infectious Diseases, Wulian Municipal Center for Disease Control and Prevention, Wulian 262300, China
    4. National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing 102206, China
    5. National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing 102206, China
  • Received:2024-06-06 Online:2024-06-18 Published:2024-09-29
  • Contact: Qiulan Chen, Yanping Zhang
  • About author:

    Hongrui Zhai and Shijian Zhou contributed equally to this work

Abstract:

Objective

To comprehensively analyze the current epidemiological situation of dengue fever at the global level and in China, to assess the indigenous transmission risk of dengue fever in China in the coming period, and to propose recommendation on risk management.

Methods

The dengue epidemic and vector surveillance information of some countries and regions around the World and in China were described in general terms. The risk matrix method was used to assess the indigenous transmission risk caused by imported cases of dengue fever epidemic in different provinces of China.

Results

In recent years, the global dengue epidemic had shown a trend of gradual increase, and the cumulative number of reported cases of dengue fever in the world in 2023 were more than 6.5 millions. The number of dengue fever cases reported in China from 2015 to 2023 showed a gradual increase. May to October was the epidemic season every year. Yunnan Province, Guangdong Province and Guangxi Zhuang Autonomous Region report a higher number of cases. At the present time, Mainland China faced a higher risk of importation than that of 2023, and the provinces with a high risk of importation of dengue fever triggering local epidemics were Guangdong Province and Yunnan Province.

Conclusions

It is recommended to pay continuous attention to the international epidemic situation, carry out timely tracking and management of imported cases, and implement sustainable mosquito vector surveillance measures.

Key words: Dengue fever, Risk matrix, Risk assessment, Indigenous transmission, Imported cases

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