ARBOVIRUSES ISOLATED FROM ARGAS TICKS IN EGYPT - QUARANFIL CHENUDA AND NYAMANINI
ARBOVIRUSES ISOLATED FROM ARGAS TICKS IN EGYPT - QUARANFIL CHENUDA AND NYAMANINI
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DOI：
10.4269/ajtmh.1966.15.76
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发表时间：
1966-01-01
影响因子：
3.3
通讯作者：
HOOGSTRAAL, H
中科院分区：
文献类型：
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作者：
TAYLOR, RM;HURLBUT, HS;HOOGSTRAAL, H
据报道，在埃及尼罗河三角洲分离到三种虫媒病毒，命名为Quaranfil、Chenuda和Nyamanini。Quaranfil病毒分离自Argas arboreus、Argas（Argas）reflexus hermanni、雏鸟牛鹭（Bubulcus ibis ibis）和鸽子雏鸽，以及两名发热性疾病儿童的血液。从自然感染脊椎动物和节肢动物的病毒分离、有限的抗体调查以及实验感染和传播推断出该病毒的生态学特征，表明它基本上是一种鸟类病毒，由Argas蜱传播。牛背鹭和鸽子这两种鸟类被确定为有罪，它们的巢穴被阿尔加斯蜱（Argas ticks）严重寄生。arborveus和A. R.赫曼尼显然，感染主要是由幼鸟从受感染的蜱中获得的，而这些鸟又感染了其他的幼虫和若虫蜱。尽管病毒在蜱蜕皮期间存活，但未证实经卵巢传播。有证据表明，相关人群偶尔会发生切线感染。从A. R. hermanni在两个大型鸽房中收集的，据推测鸽子是脊椎动物的宿主。这种病毒的低致病性减少了支持感染和传播的实验证据。从A. arboreus和一个从一个大型繁殖场收集的白鹭雏鸟中分离到的毒株，在那里也分离到Quaranfil病毒。
Isolations are reported of three arboviruses designated as Quaranfil, Chenuda, and Nyamanini in the Nile Delta of Egypt. Quaranfil virus was isolated from Argas Persicargas arboreus, Argas (Argas) reflexus hermanni, nestling cattle egrets (Bubulcus ibis ibis), and a pigeon squab, and from the blood of two children during a febrile illness. The ecological characteristics of this virus deduced from virus isolation from naturally infected vertebrates and arthropods, limited surveys for antibodies, and experimental infection and transmission, suggest that it is essentially a bird virus, transmitted by Argas ticks. The two species of birds, the cattle egret and the pigeon, that were definitely incriminated, nested in colonies that were heavily parasitized by Argas ticks[long dash]the former by A. arborveus and the latter by A. r. hermanni. Apparently, infection is acquired mainly by the young birds from the infected ticks, and the birds in turn infect additional larval and nymphal ticks. Though the virus survived through moltings of the ticks, transovarian passage was not demonstrated. Evidence is presented for the occasional tangential infection of associated human populations. Chenuda virus was isolated from A. r. hermanni collected in two large pigeon houses, and presumably the pigeon is the vertebrate host. The low pathogenicity of this virus curtailed supporting experimental evidence on infection and transmission. Two strains of Nyamanini virus were isolated from A. arboreus and one strain from a nestling egret collected at a large rookery where Quaranfil virus was also isolated.