鸟类是西尼罗河病毒的自然宿主。
西尼罗河病毒影响中枢神经系统。
鸟类是西尼罗河病毒的宿主。
西尼罗病毒向东南传播。
最近，针对西尼罗河病毒的检测也被引入了。
Recently, a similar test was introduced for the West Nile virus.
西尼罗河病毒可以通过多种不同的检验获得诊断
West Nile virus can be diagnosed by a number of different tests
西尼罗河病毒能够引起人类致命性神经系统疾病。
West Nile virus can cause a fatal neurological disease in humans.
目前对西尼罗河病毒感染还没有特定的治疗方法。
西尼罗河病毒最早是1999年在北美洲被发现的。
其它类型的脑炎有西尼罗河、圣路易斯、东方马。
Other kinds of encephalitis include West Nile, Saint Louis and Eastern Equine.
西尼罗河病毒主要通过受感染蚊子的叮咬传播给人类。
West Nile virus is mainly transmitted to people through the bites of infected mosquitoes.
一般而言，西尼罗河病毒是由受到感染的蚊子传播的。
Generally, WNV is spread by the bite of an infected mosquito.
西尼罗河病毒可以导致人类罹患神经系统疾病甚至死亡。
West Nile Virus (WNV) can cause neurological disease and death in people. WNV is commonly found in Africa, Europe, the Middle East, North America and West Asia.
西尼罗河病毒是一种由蚊子传播的疾病，病情有轻有重。
West Nile Virus: is a disease spread by mosquitos. The condition ranges from mild to severe.
它们同时也在传播疾病，如黄热病、西尼罗河热和登革热。
They also transmit devastating diseases such as yellow fever, West Nile fever and dengue.
曾有一例西尼罗河病毒经胎盘（从母亲到婴儿）传播的报告。
There is one reported case of transplacental (mother-to-child) WNV transmission.
库蚊属的蚊子通常被认为是西尼罗河病毒的主要病媒，特别是库蚊。
Mosquitoes of the genus Culex are generally considered the principal vectors of WNV, in particular Cx. Pipiens.
在欧洲、非洲、中东和亚洲，西尼罗河病毒感染引起的鸟类死亡很罕见。
In Europe, Africa, Middle East and Asia, mortality in birds associated with WNV infection is rare.
西尼罗河病毒是黄病毒属的一种，与日本脑炎抗原复合物同属黄病毒属。
West Nile virus (WNV) is a member of the flavivirus genus and belongs to the Japanese encephalitis antigenic complex of the family Flaviviridae.
过去50多年中，全世界许多国家均报告过西尼罗河病毒引起的人类感染。
Human infections attributable to WNV have been reported in many countries in the World for over 50 years.
西尼罗河病毒于1937年从乌干达西尼罗河地区一位妇女体中首次分离出来。
West Nile Virus (WNV) was first isolated in a woman in the West Nile district of Uganda in 1937.
西尼罗河病毒在非洲、欧洲、中东、西亚和中亚、大洋洲以及最近在北美都发现过。
WNV has been described in Africa, Europe, the Middle East, west and central Asia, Oceania, and most recently, North America.
研究应确定当地传播西尼罗河病毒的蚊子种类，包括可能“桥接”鸟类和人类的蚊子。
Studies should identify local mosquito species that play a role in WNV transmission, including those that might serve as a “bridge” from birds to human beings.
研究者们在实验室里将一些蚊子感染了西尼罗河病毒、罗斯河病毒以及基孔肯雅病毒。
The researchers infected mosquitoes in the lab with West Nile, Ross River or chikungunya viruses.
他们在研究过的三个案例中发现西尼罗河热在美国的的流行与鸟类种群密度的下降相关。
Three of the cases they studied found that the rise of West Nile virus in the U.S. corresponded to decreases in bird population density.
通过分析遗传材料，他和同事们断定脑炎的罪魁祸首是一种叫做“西尼罗河病毒”的特殊病毒。
Analyzing the genetic material, he and his colleagues concluded that the encephalitis had been caused by West Nile virus.
通过分析遗传材料，他和同事们断定脑炎的罪魁祸首是一种叫做“西尼罗河病毒”的特殊病毒。
Analyzing the genetic material, he and his colleagues concluded that the encephalitis had been caused by West Nile virus.
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