McLean D M, Clarke A M, Goddard E J, Manes A S, Montalbetti C A, Pearson R E
J Hyg (Lond). 1973 Jun;71(2):391-402. doi: 10.1017/s002217240002283x.
Sera from 218 of 1574 (14%) small mammals collected in the Yukon Territory between 14 May and 13 August 1972 neutralized a Yukon strain of California encephalitis virus (snowshoe-hare subtype). These included 133 of 319 (42%) snowshoe hares (Lepus americanus), 84 of 1243 (7%) ground squirrels (Citellus undulatus) and 1 of 12 (8%) tree squirrels (Tamiasciurus hudsonicus). California encephalitis virus (snow-shoe hare subtype) was isolated from four pools of unengorged Aedes communis mosquitoes collected near Whitehorse (61 degrees N., 135 degrees W.) and on one occasion each from pools of the same species collected at Hunker Creek (64 degrees N., 138 degrees W.) and at mile 125, Dempster Highway (66 degrees N., 138 degrees W.) during July 1972. Replication of a Yukon strain of California encephalitis virus was observed in wild-caught Culiseta inornata and Aedes canadensis mosquitoes after intrathoracic injection and holding at temperatures of 80 degrees , 50 degrees and 40 degrees F.
1972年5月14日至8月13日期间在育空地区捕获的1574只小型哺乳动物中,有218只(14%)的血清能够中和育空地区的加利福尼亚脑炎病毒(雪兔亚型)。其中包括319只雪兔(美洲兔)中的133只(42%)、1243只地松鼠(黄鼠)中的84只(7%)以及12只松鼠(北美红松鼠)中的1只(8%)。从在白马市(北纬61度,西经135度)附近采集的4组未吸血的普通伊蚊中分离出了加利福尼亚脑炎病毒(雪兔亚型),1972年7月还分别从在亨克溪(北纬64度,西经138度)和登普斯特公路125英里处(北纬66度,西经138度)采集的同一种类的伊蚊中各分离出一次该病毒。在对野生捕获的无味库蚊和加拿大伊蚊进行胸腔内注射并分别置于80华氏度、50华氏度和40华氏度的温度下饲养后,观察到育空地区的加利福尼亚脑炎病毒能够在这些蚊子体内复制。