Department of Pathology and the Department of Pediatrics, Washington University School of Medicine, St. Louis.
J Exp Med. 1947 Aug 31;86(3):229-37. doi: 10.1084/jem.86.3.229.
Transmission of the virus of St. Louis encephalitis to normal chickens by the bite of infected mites (Dermanyssus gallinae) has been demonstrated. Both experimentally infected and naturally infected mites were shown to be capable of transferring the virus of St. Louis encephalitis to chickens by bite. Virus is present in the blood of such chickens in small amounts, so that demonstration of viremia was possible only by utilizing chorioallantoic passage in hens' eggs. However, there is sufficient virus present in the blood for uninfected chicken mites to acquire the virus by feeding on chickens in which viremia has resulted from previous bite of infected mites. Thus it has been shown that the arachnid vector Dermanyssus gallinae is capable of transmitting the virus of St. Louis encephalitis to normal chickens by bite and that such chickens can serve as a source of virus for uninfected mites.
已证实,感染病毒的恙螨(Dermanyssus gallinae)叮咬能将圣路易斯脑炎病毒传播给正常鸡。实验感染和自然感染的恙螨均能通过叮咬将圣路易斯脑炎病毒传播给鸡。这些鸡的血液中含有少量病毒,因此只有利用鸡胚的绒毛尿囊腔传代才能证明存在血传病毒。但是,在血液中存在足够的病毒,未感染的鸡恙螨通过叮咬已被感染的恙螨叮咬而感染病毒的鸡来获得病毒。因此,已经证明节肢动物传播媒介恙螨(Dermanyssus gallinae)能够通过叮咬将圣路易斯脑炎病毒传播给正常鸡,并且这些鸡可以作为未感染恙螨的病毒来源。