病毒

The inhibiting influenza A virus effect of catechu extract was observed by means of chick-embryo culture , and the inhibitory activity of catechu extract on influenza A virus in vitro was observed by the hemagglutination inhibition test.

用狗肾传代MDCK细胞培养法观察儿茶提取物抑制甲型流感病毒的致细胞病变作用；用鸡胚培养法观察儿茶提取物抑制甲型流感病毒增生的作用；用红细胞凝集试验观察儿茶提取物体外直接抑制甲型流感病毒的作用。

These coronaviruses are not closely related in terms of gene sequences to IBV. Andas a result, they are clearly not simply isolates of IBV, but represent new coronavirusspecies. The phenomenon of IBV is not limited to replicating in a single host species, whichwas highlighted by the spread of SARS-coronavirus from mammals, like civet cat andbat.

IBV这种从感染单一宿主延伸到更多的其他动物的现象，让人联想到2002年爆发的"严重急性呼吸系统综合症"(Severe acute respiratory syndrome，SARS)，它的病原是一种新的冠状病毒(严重急性呼吸系统综合症冠状病毒，SARS-CoV)，而在多种动物体内分离到的SARS-CoV样冠状病毒说明SARS-CoV极有可能最初起源于动物。

The WHO statement goes into more detail. It says the virulence of the virus largely determines the number of severe illnesses and deaths, but many other factors influence the overall severity, including the contagiousness of the virus, the age distribution of cases, the prevalence of chronic health problems and malnutrition in a population, viral mutations, the number of waves of illness, and the quality of health services.

WHO在声明中进一步解释，病毒的毒性主要会决定重症和死亡病例的数量，但影响流感暴发严重程度的还有其他的因素，包括病毒的接触传染性、发病的年龄分布特点、是否更会在慢***和营养不良人群中流行、病毒的变异性、暴发期的次数和医疗服务的质量等。

Any of a group of DNA-containing viruses, including those that cause smallpox, cowpox, and other poxlike diseases in vertebrates.

痘病毒一组含脱氧核糖核酸的病毒，包括那些在脊椎动物中引起天花、牛痘以及其他类似疾病的病毒

And to trojan and baleful software, the understanding of lucky star and strange tiger is different also, insist to be mixed with safe bodyguard all the time to strange tiger a variety of means such as the software that reduce toxin handle trojan program and virus, lucky star thinks the trojan is a kind of virus, instead trojan and turn over virus to be mixed in technical principle intercept and capture, there are any distinctions on flow of analysis, processing, is to persuade an user to stay, strange tiger with " of a year of operating period, the component reducing toxin that functional course cuts out " pretend to be " the permanent and free software that reduce toxin " will cheat an user, it is a crammer.

而对于木马和恶意软件，瑞星与奇虎的认识也不同，对于奇虎一直坚持用安全卫士和杀毒软件等多种方式处理木马程序以及病毒，瑞星认为木马是病毒的一种，反木马和反病毒在技术原理和截获、分析、处理流程上没有任何区别，而正是为了挽留用户，奇虎便以"一年使用期的、功能经过裁剪的杀毒组件"冒充"永久免费的杀毒软件"来欺骗用户，是一个谎言。

However, the induced antibody from these mice had weaker cross-reaction with the SARS-CoV S protein, and did not neutralize HIV pseudotyped with SARS-CoV S protein.

然而，该重组腺病毒诱导的抗体和SARS冠状病毒S蛋白仅有弱的交叉反应，且不能中和假型SARS病毒的侵染。

Cucumber mosaic virus and Tomato mosaic virus are two principal viruses infecting tomato.

黄瓜花叶病毒和番茄花叶病毒是两种侵染番茄的主要病毒。

Chinese scientists study shows that tobacco mosaic virus and cucumber flowers mosaic virus membrane protein gene moved to after the two kinds of tobacco cultivation, can really enhance the ability of tobacco anti-virus.

中国科学家的研究表明，把烟草花叶病毒和黄瓜花叶病毒膜蛋白基因移入两种烟草后进行培植，确能提高烟草的抗病毒能力。

Tabacoo mosaic virus ; Cucumber mosaic virus ; Potato X virus ; RT-PCR

烟草花叶病毒；黄瓜花叶病毒；马铃薯X病毒； RT-PCR

Based on the genome conservative sequence of tabacoo mosaic virus, cucumber mosaic virus and potato X virus, special primers were designed respectively. With the RT-PCR, the target fragments about 313,326 and 392 bp were ampilfied separately from the infected sample, but not health sample.

设计烟草花叶病毒、黄瓜花叶病毒和马铃薯X病毒的特异性引物，RT-PCR检测，从感病叶片中分别扩增出313，326，392 bp的目的片断，而健康叶片中无此扩增带。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。