诺华发明的禽流感疫苗利用了模拟病毒大小和形状的颗粒，这足以激发免疫应答但并不含有病毒复制需要的遗传物质。
Novavax's bird flu vaccine uses particles that mimic the size and shape of the virus, which trigger an immune response but lack the genetic material to replicate.
病毒很难被发现，其中一个原因是因为他们都很微小——通常只有百万分之一英寸大小。
One reason that viruses can be so hard to find is that they're so small - typically a few millionths of an inch across.
但是，假如将地球缩成细菌大小，放在高倍显微镜下观察，它能比病毒更奇怪吗？
But if Earth is reduced to the size of a bacteria, and inspected under high-powered optics, would it seem stranger than a virus?
加州大学欧文分校的的科学家菲利普·科林斯说，尺寸如盐颗粒大小的电池能够给传感器提供动力，为那些用于检测病毒和化学物质等传感器提供动力。
Batteries that are the size of a grain of salt — or smaller — could power sensors that detect viruses, chemicals and more, said Philip Collins, a scientists at the University of California, Irvine.
研究人员试图探究流感病毒的存活力与其种类或大小之间是否存在关联。
Researchers sought to find out if the type or size of the flu virus affects its survival.
另外，还有一些关切艾滋病毒感染性疾病，如和移植必须适当大小。
Also, there are concerns regarding infectious diseases, such as HIV, and the grafts must be appropriately sized.
按病毒设计者的意图和破坏性大小，可将计算机病毒分为良性病毒和恶性病毒。
According to the intention and destructive virus designers, can be the size computer virus can be divided into benign virus and malignant viruses.
病毒RNA受到破坏的程度取决于给予细胞的病毒剂量大小以及每个基因片断的序列。
The extent of damage to viral RNA depends on the viral dose received by the cell itself and on the sequence of the structure per se.
悬浮病毒粒子的沉降率因其大小和密度而异。
The rate of sedimentation of a suspended viral particle depends on its size and density.
采用单层琼脂蚀斑测定法，初步研究了重组痘苗病毒的蚀斑大小与毒力之间的关系。
The relationship between virulence and the size of the plaques of recombinant vaccinia viruses was studied by plaque assay method on chicken embryo cell monolayer with AGAR overlay.
猪细小病毒感染的主要症状是产仔少，产不同大小的木乃伊胎，假孕和空怀母猪数量的增多。
The major signs are therefore small litter sizes, mummified pigs of different sizes, and increases in pseudo-pregnancies and not-in-pigs.
该微生物的大小介于病毒和细菌之间，具有明显的细胞壁和细胞膜双层结构，但无明显的细胞核。
The RLO with cell wall was smaller than bacteria but larger than virus and had cell membrane without nucleoid area.
很多致病的元凶如细菌和病毒均是纳米大小。
Many disease-causing culprits such as bacteria and viruses are nano size.
依据TRBIV的形状、大小、在感染细胞内的位置以及靶组织类型等判断，该病毒不同于已报道的大菱醉虹彩病毒，是一种新的感染我国大菱虾的虹彩病毒。
According to the shape, size and target tissues of the virus, we recognized that TRBIV is different from the documented turbot iridovirus and it may be a new piscine iridovirus for cultured turbot.
流感病毒抗原变异与流感的流行大小、预防、控制密切相关。
The antigenic variation of flu virus is closely related to the epidemic situations, the precaution, and the control of flu.
目的探讨慢性病毒性肝炎病理分期与脾脏大小及脾静脉指标的关系。
Objective To study the relationship between the pathological staging of chronic viral hepatitis and spleen size and splenic vein index.
同时，我们还发现，病毒非结构蛋白NS1对该启动子具有反式激活作用，并且这种激活作用的大小取决于 NS1 蛋白在细胞中的浓度。
In addition, we found that the tr a nscriptional activity of this promoter could be transactivated by the viral nonstructural protein NS1 in a concentration dependent fashion in S2 cells.
同时，我们还发现，病毒非结构蛋白NS1对该启动子具有反式激活作用，并且这种激活作用的大小取决于 NS1 蛋白在细胞中的浓度。
In addition, we found that the tr a nscriptional activity of this promoter could be transactivated by the viral nonstructural protein NS1 in a concentration dependent fashion in S2 cells.
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