鄂伦春自治旗大杨树镇肾综合征出血热自然疫源地性质调查研究

于 1999年 9月 17— 2 0日对内蒙古自治区呼伦贝尔盟鄂伦春自治旗大杨树镇的 3个自然村 (富饶对、新华村、前进村 )的居民区和田野进行了肾综合征出血热 (HFRS)疫源地性质调查。通过现场调查和血清学检测 ,结果表明黑线姬鼠为该地区汉坦病毒主要宿主动物 ,其占捕获鼠类构成 71.2 3% (15 1/2 12 ) ;捕获动物的总密度为 2 8.30 % (2 12 /749) ,其中黑线姬鼠的密度为 2 0 .16 % (15 1/749) ;捕获动物总感染率为 9.78% (40 /40 9) ,黑线姬鼠的感染率为 7.0 9% (2 9/40 9) ,占感染鼠总数的 72 .5 0 %(2 9/40 ) ,带病毒率为 11.90 % (18/15 1)。褐家鼠占鼠种构成的 8.49% ,其密度为 2 .40 % ,带病毒率为 16 .70 % ,感染率为 0 .90 %。结果表明 ,大杨树地区的疫源地性质是黑线姬鼠为主要宿主动物的肾综合征出血热自然疫源地 ,目前已演变为姬鼠型为主的混合型疫区。

A SURVEILLANCE STUDY ON THE ENZOONOSTIC NATURAL OF HFRS (HEMORRHAGE FEVER WITH RENAL SYNDROME)IN DAYANGSHU DISTRICT OF ELUNCHUN AUTONOMIC COUNTY

A surveillance study on enzoonostic nature of HFRS has been done in September1999,in the villages of Furao,Xinhua and Qianjin of Dayangshu District of Inner Mongolia.Through the investigation and serum examination,it was found that the dominate host animals of Hantavirus was Apodemus agrarius that composed 71.23%(151/212)of the captured animals;The total density of the captured animals was 9.78%(40/409),among them 20.16%(151/749)were Apodemus agrarirs;8.49% were Rattus Norvegicus,the density was 2.40%,the virus carrying rate was 16.7%.The infective rate of Apodemus agrarius was 7.09%(29/409) that occupied 72.50%(29/40) of all infected animals.The results showed that the predominant host animal of Dayangshu District was Apodemus agrarius,and presently it has changed to the mixed type of HFRS.