关键词: 肾综合征出血热, 疫情, 监测

Abstract:

Objective To analyze the surveillance data of hemorrhagic fever with renal syndrome (HFRS) in Shenyang, China, from 2004 to 2013 and to assess the trend of HFRS epidemic in the past ten years. Methods Descriptive epidemiological methods were used to analyze the surveillance data of HFRS in Shenyang from 2004 to 2013. Results A total of 2253 cases of HFRS were reported in Shenyang from 2004 to 2013. The incidence and mortality showed a decreasing trend year by year. There was no epidemic outbreak, and all the cases were sporadic. Of all the HFRS cases reported, 70.88% (1597/2253) were observed in seven districts: Yuhong district, Heping district, Huanggu district, Tiexi district, Shenbei New Area, Dongling district, and Xinmin city. The incidence of HFRS showed marked seasonal characteristics, and the peaks of incidence appeared in spring and autumn-winter periods. The number of the cases reported in spring was higher than that in autumn-winter periods. The incidence rate in males was three times higher than that in females. The analysis of age groups and occupational distribution showed that the most affected individuals were young adults, and farmers or unemployed, respectively. Apodemus agrarius and Rattus norvegicus were the predominant reservoir hosts in the residential area and field, respectively. The population density of host animals and the virus-carrying rate were relatively stable. Conclusion The steady descending trend of HFRS epidemic in Shenyang could be related to the success of comprehensive prevention and control measures. Both the population density and the virus-carrying rate among the host animals remain high, so there is still a potential danger of HFRS epidemic.

Key words: Hemorrhagic fever with renal syndrome, Epidemic, Surveillance