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1986年7月—1987年6月在本省资兴市何家山乡两个观察点进行了鼠螨季节消长与HFRS的发病关系调查,发现黑线姬鼠是野外优势鼠种(66.42％);褐家鼠为室内优势鼠种(85.97％)。以11月—12月捕获率最高(12.17％和11.5％),鼠密度高峰出现在人群发病高峰前约一个月,用IFAT检测481只(褐家鼠、黑线姬鼠、黄胸鼠、社鼠、黄毛鼠、小家鼠)鼠种,阳性鼠24只(褐家鼠、黑线姬鼠),阳性率为49.90％,其它鼠皆为阴性。提示何家山乡HFRS病毒的贮存宿主和传染源为褐家鼠和黑线姬鼠。从逐月鼠密度变化和褐家鼠及黑线姬鼠的带毒率高峰来看,与HFRS发病呈一致关系。该病在人群中存在隐性感染。调查情况证明,当地确实存在流行性出血热的自然疫源地。各鼠种普遍带革螨,以毒棘厉螨和巴氏厉螨为优势螨种,分别为27.80％和23.50％。
From July 1986 to June 1987, we investigated the relationship between the growth of mouse and mite and the incidence of HFRS at two observation points in Hejiashan Township, Zixing City, the province. It was found that Apodemus agrarius was the predominant species in the wild (66.42%); brown House mouse indoor dominant species (85.97%). The highest catch rates (12.17% and 11.5%) were found in November-December, and the peak of rat density appeared about one month before the onset of the population. There were 481 IFAT samples (Rattus norvegicus, Rattus flavipectus, 24 rats (Rattus norvegicus, Apodemus agrari), the positive rate was 49.90%. The other mice were all negative. Prompt Heji Township HFRS virus storage host and infection source for Rattus norvegicus and Apodemus. From the month-by-month mouse density changes and Rattus norvegicus and Apodemus striatum peak incidence rate, and HFRS incidence was consistent. The disease has a latent infection in the population. Investigation shows that there is indeed a natural epidemic of epidemic hemorrhagic fever foci. Generic species of mites were found in all species, with the dominant species being 27.80% and 23.50%, respectively.