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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。
The epidemic of hemorrhagic fever with renal syndrome (HFRS) was performed in the residential areas and fields of 3 natural villages (Bolaoyu, Xinhua Village, Qianjin Village) in Dayangshu Town, Huayingbei Erlang Oro Spring Autonomous Banner, Inner Mongolia Autonomous Region from September 17 to September 20, 1999 Nature survey. Through field investigation and serological test, the results showed that Apodemus agrarius was the main host animal of Hantaviruses in this area, accounting for 71.2% (15 1/2 12) of captured mice; the total density of captured animals was 2. 8.30% (2 12/749). The density of Apodemus agrarius was 20.16% (15 1/749). The total infection rate was 9.78% (40/40 9). The infection rate of Apodemus agrarius was 7.09% (2 9/40 9), accounting for 72.50% (2 9/40) of the total number of infected mice, with a virus rate of 11.90% (18/15 1). Rattus norvegicus accounted for 8.49% of the species of rats, the density of 2.40%, with a virus rate of 16.7%, the infection rate was 0.90%. The results showed that the nature of the foci in Dayangshu area was a natural foci of hemorrhagic fever with renal syndrome mainly composed of Apodemus agrarius, which has evolved into a mixed-type epidemic area dominated by Apodemus agrarius.