Alekseev A N, Razumova I V, Chunikhin S P
Med Parazitol (Mosk). 1989 May-Jun(3):14-6.
Numbers of active females of Dermacentor marginatus ticks infected parenterally with tick-borne encephalitis virus are compared. Increase in this proportion is demonstrated with ticks' physiological aging. Epidemiological and epizootic importance of the discovered phenomenon are the increase in the probability of persistent virus circulation throughout the season, since only active individuals are capable of virus transmission. Besides, it is among them that the virus is most frequently found in saliva.
对经皮下感染蜱传脑炎病毒的边缘革蜱活跃雌性个体数量进行了比较。结果表明，随着蜱的生理老化，这一比例会增加。这一发现现象的流行病学和 epizootic 重要性在于，由于只有活跃个体能够传播病毒，所以整个季节病毒持续循环的可能性增加。此外，病毒最常出现在它们的唾液中。 （注：“epizootic”直译为“动物流行病的”，这里结合语境意译为“动物疫病流行相关的”更合适，但要求不添加说明所以保留原文）
