Watts D M, Eldridge B F
Med Biol. 1975 Oct;53(5):271-8.
One interesting aspect of mosquito-borne arboviruses is their endemic persistence, espeically during adverse climatic conditions in the temperate zones. The hypothesis that transovarial transmission of alpha- and flaviviruses by their respective mosquito vectors could serve as an overwintering mechanism has been proposed; however, experimental data in support of this hypothesis are not very convincing. Recently, some of the California encephalitis group arboviruses have been shown to be transmitted transovarially by Aedes species mosquitoes, and studies indicate that this mechanism contributes to the natural maintenance cycle of these viruses. Finally, consideration is given to the possibility that transovarial transmission may be unique to the California encephalitis group arboviruses and may be related to their association with a vector that overwinters in the egg stage of its life cycle.
蚊媒虫媒病毒的一个有趣方面是它们的地方性持续存在，尤其是在温带地区不利的气候条件下。有人提出假说，甲型病毒和黄病毒通过各自的蚊媒进行经卵传播可作为一种越冬机制；然而，支持这一假说的实验数据并不十分令人信服。最近，已证明一些加利福尼亚脑炎群虫媒病毒可经伊蚊属蚊子进行经卵传播，研究表明这种机制有助于这些病毒的自然维持循环。最后，考虑了经卵传播可能是加利福尼亚脑炎群病毒所特有的，并且可能与其与在生命周期卵期越冬的媒介的关联有关的可能性。
