ISSN 1003-8280 CN 10-1522/R 中国疾病预防控制中心 主办
Chinese Journal of Vector Biology and Control >
Epidemiological study on an outbreak of dengue fever in Ruili, Dehong prefecture of Yunnan province, China
Received date: 2014-06-11
Online published: 2014-12-20
Supported by
Supported by the National Natural Science Foundation Project of China (No. 30960327), Joint Control Project of Malaria and Dengue in Yunnan Border Areas, Applied Basic Research Programs of Science Foundation Project of Yunnan Province (No. 2009CD140)
Objective To investigate the epidemiological characteristics of the 2013 outbreak of dengue fever in Ruili of Yunnan province, China, and to promote management of dengue fever epidemics. Methods An investigation was conducted among all dengue fever cases. Serum samples of all cases were tested by NS1 antigen detection. The density of vector mosquitoes was determined by the Breteau index (BI). Results This outbreak of dengue fever lasted 104 days, and there were 232 confirmed cases, of whom 145 were locally infected cases, and 87 were imported cases from Myanmar. Cases were mainly distributed in the urban areas of Ruili (53.45%, 124/232). The male-to-female ratio was 1.23:1; the patients were mainly 20-49 years old, with the youngest 1 year old and the oldest 80 years old. Most of the patients were business people, farmers, housekeepers, and unemployed persons. Conclusion This was the first local outbreak of dengue fever in Ruili, which was caused by both Aedes albopictus and Ae. aegypti. With combined control of Aedes sp. mosquitoes and BI not higher than 5.0, the epidemic of dengue fever can be controlled.
Key words： Dengue fever; Outbreak; Epidemiological characteristics; Ruili
LIU Yong-hua, YIN Xiao-xiong, YANG Zhao-lan, LI Ping, YIN Zheng-liu, LI Shi, YANG Jie, YANG Heng-lin, WU Chao, ZHOU Hong-ning . Epidemiological study on an outbreak of dengue fever in Ruili, Dehong prefecture of Yunnan province, China[J]. Chinese Journal of Vector Biology and Control, 2014 , 25(6) : 524 -526 . DOI: 10.11853/j.issn.1003.4692.2014.06.010
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