2007年安义县肾综合征出血热监测分析

Surveillance of hemorrhagic fever with renal syndrome in Anyi county in 2007

目的了解安义县2007年肾综合征出血热(HFRS)的流行特点和流行趋势,为防治提供依据。方法对安义县2007年人间疫情及宿主动物监测资料进行分析。结果2007年安义县HFRS发病率为6.13/10万,5-6月和11-12月发病较多,占全年病例总数的81.25%。人群隐性感染率高,达21.00%,无死亡病例。捕获鼠类7种207只,其中居民区以褐家鼠为优势种,野外以黑线姬鼠为优势种;鼠带病毒率为1.49%,带病毒鼠均为居民区小家鼠。鼠血总抗体阳性率为12.08%。结论安义县HFRS符合家鼠型为主的混合型疫区流行特征。2007年发病率上升较快,应继续加强疫情监测,贯彻"灭鼠和免疫并重"的措施,控制HFRS的发病率。

Objective To find out the epidemic characteristic and trend of hemorrhagic fever with renal syndrome （HFRS） in 2007, and to provide the evidence for its prevention and control. Methods The surveillance data of epidemic, situation of HFRS among human and its host was analyzed. Results The incidence rate of HFRS was 6.13 per 100 000 in Anyi in 2007, higher in May-June and November-December, accounting for 81.25% of the total. The silent infection rate was 21.00%, and no death case was reported. There were 207 rats belonged to 7 specie caught, of which, Rattus noregicus was the dmninant species in resident areas and Apodemus agrarius was the dominant species in the field. The rate of mice with virus was 1.49% and the species with virus was Mus musculus in resident areas. The positive rate of antibody in rat blood was 12.08%. Conclusion The HFRS in Anyi accorded with the epidemic characteristic of mixed-type epidemic area in which house mouse dominants. The incident rate rose quickly in 2007. h should strengthen continuously the surveillance of epidemic situation and carry out the measure of killing rodent and immunization to reduce the incidence rate of HFRS.