革螨作为流行性出血热媒介宿主的研究

Study of Gamasid Mites as the Vector Reservoir of Epidemic Hemorrhagic Fever (EHF)

为探索EHF的传播途径,我们对革螨作为EHF媒介宿主的可能性进行了一系列调查研究。结果证明,格氏血厉螨和厩真厉螨是黑线姬鼠窝巢中的优势螨种,其季节消长与发病相关,有EHF病毒的自然感染,能通过叮刺在鼠间传播和在螨体内经卵传递EHF病毒,从鼠和螨所分离的EHF病毒的抗原性一致,表明该两种螨可作为野鼠型EHF的鼠间传播媒介,并兼有储存宿主作用。

In order to clarifing the approach of transmission of Epidemic Hemorrhagic Fever(EHF), we carried oat a series of studies on the relationship between the Gamasid mites and EHF. The results indicated that, Haemolaelaps glasgowi and Eulaelaps stabularis were the dominant species in the litters of Apodemus agrarius the main reservir of EHF; their seasonal distribution were correlated with the incidence of human EHF; these two mites could naturally he infected hy EHF virus; EHF virus could be transmitted by the bite of mite among rodents and through transovarial transmission in mites; the antigenicity of EHF virus isolated from mice and mites were identical. These results indicate that these two mites can serve as transmitting vector of wild rodent type of EHF and act as a reservoir host as well.