Normally, west nile virus is found in birds and mosquitoes.

一般情况下，西尼罗河病毒存在于鸟类和蚊子体内。

Treatment for west nile virus includes supportive care.

治疗主要是支持治疗。

After people are infected with west nile virus it takes two to fourteen days to develop symptoms.

病人在感染病毒后的2-14天出现症状。

Now, west nile virus enters host cells using a lipid membrane protein called E2 in a process called clathrin-mediated endocytosis.

西尼罗河病毒利用脂质双分子层上的包膜蛋白（E）通过网格蛋白介导的内吞作用进入宿主细胞。

A unique feature of west nile meningitis is the presence of a coarse tremor in the upper extremities.

一个比较特异的症状是上肢的粗大的震颤。

Prevention of west nile virus remains the best therapy, using mosquito repellent and wearing long-sleeved shirts and pants.

最好的治疗就是预防西尼罗河病毒感染，使用驱蚊剂以及穿长袖长裤。

The diagnosis of west nile fever is usually not clinically indicated unless findings of meningitis or encephalitis are present.

诊断通常不是必须的，除非存在脑膜炎和脑炎。

The vector for west nile virus is the mosquito, and gets transmitted in highest frequency through the female Culex species, which feeds on birds.

西尼罗河病毒的载体是蚊子，传播频率最高的是雌性库蚊；它一般叮咬鸟类。

Laboratory findings associated with west nile virus are nonspecific and include an elevated white blood cell count or elevated inflammatory markers like CRP and ESR.

西尼罗河病毒相关的实验室检查特异性不高，包括白细胞计数升高、炎症标志物如C反应蛋白（CRP）和血沉（ESR）升高。

The virus causes a clinical syndrome called west nile fever, but can progress to meningitis or encephalitis in the elderly, those with significant health problems, immunocompromised or young children.

这种病毒可以导致一种叫做西尼罗河热的综合征，但是在老年人、有严重健康问题的人、免疫低下人群、小儿中，可进展为脑膜炎和脑炎。

The diagnosis of west nile virus is made by detecting about four times the normal amount of IgM in the serum or CSF using an immunoassay test that's specific to the virus.

西尼罗河病毒的诊断基于血清或脑脊液免疫检测特异性抗体升高为正常水平4倍以上。