Epidemic situation of hemorrhagic fever with renal syndrome in Yunnan Province, China, 2005-2012
YANG Wei-hong1,LI Wen-juan2,ZHOU Ji-hua1,PAN Hong1,HAN Xi1, ZHANG Yun-zhi1
1.Yunnan Provincial Key Laboratory of Zoonosis Control and Prevention / Yunnan Provincial Center for Virosis and Rickettsiosis Research / Yunnan Institute of Endemic Disease Control and Prevention, Dali 671000, China; 2.Center for Disease Control and Prevention of Xiangyun County, Xiangyun 671200, China
Abstract：The recent epidemic situation of hemorrhagic fever with renal syndrome (HFRS) in Yunnan Province, China, from 2005 to 2012, was analyzed, which provided a scientific basis for further control and prevention of HFRS in this place. Descriptive epidemiological and statistical methods were applied to analyze the data collected from the Yunnan Provincial Disease Reporting Information System from 2005 to 2012. A total of 260 cases were recorded including 45 clinically diagnosed cases, 170 laboratory diagnosed cases, and 45 unconfirmed cases. Four category focus areas were classified according to the case number. The area of the highest incidence was Dali Prefecture, followed by Kunming City, Chuxiong Prefecture, Honghe Prefecture, Lijiang City, Nujiang Prefecture, Qujing City, Yuxi City, Zhaotong City, and Baoshan City, respectively. While Diqing Prefecture, Dehong Prefecture, Lincang City, Puer City, Xishuanbana Prefecture, and Wenshan Prefecture were experiencing no case. The temporal distribution of HFRS didn't show typical seasonality. The highest number of HFRS cases was found in farmers between the ages of 40 and 50 years. In addition, male cases were found to be more than female cases. Dali Prefecture and the surrounding areas were identified as the key regions for control and prevention of HFRS. As male farmer over 40 years was the sub-population who was the most susceptible to HFRS, they should be targeted for protection from hantavirus infections. The most appropriate actions in areas of high incidence are improving sanitary conditions and reducing rodent density, and a vaccination program targeting two types of hantavirus should be included.
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2014, Vol. 30 
