查询词典 virulent

Its mortality rate, in its most virulent strains, is 90%.

最致命的病毒株引起的死亡率达到90%。

In order to compare the homology of the gene encoding VP2 between MDPV-Q and MDPV which was registered in the GenBank, also in order to find out changes of the VP2 gene and the immuno-genicity between the wild-strain MDPV-Q and the attenuated strain MDPV-26 which derived by continued passage of virulent wild-type in muscovy duck embryo, a pair of primer (LHMP7/LHMP8) was designed. The upper one LHMP7 and the lower one LHMP8 corresponded to the MDPV-specific nucleotides sequence 2885-2900 and 4618-4604 respectively, according to the MDPV nucleotide sequence databases. The length of the sequence embraced by the primers was 1734bp.

为了获取这一基因片段与国外分离株进行同源性比较，同时也为了了解MDPV强、弱毒株VP2基因之间的异同关系，及其免疫原性的变化规律，通过DNA重组技术，设计了一对引物LHMP7／LHMP8，该对引物选取位于2885～2900及4618～4604的两段序列，跨幅为1734bp，并在这两条引物中分别加入两种限制性核酸内切酶SacⅡ和KpnⅠ的酶切位点，分别对MDPV-Q和由该株病毒经人工致弱后得到的MDPV-26株进行PCR扩增，并将PCR产物克隆到pMD18-T载体上，分别得到二个重组子：pMD18-T—M-Q VP2和pMD18-T-M-26 VP2。

In order to develop a safe and effective immunoadjuvant to enhance the immunity and resistance of animals against infection, a novel CpG Oligodeoxynucleotides containing 11 CpG motifs was synthesized and inserted into the VR1012 plasmid, designated as VR1C. Then the recombinant VR1C was entrapped with Chitosan nanoparticles prepared by the method of ionic cross linkage, and employed to inject muscularly 3-weeks old Kunming mice; the blank VR1012 packed with CNP and saline were used to inoculate mice as the control groups. 28 days after inoculation, all mice were orally fed with 0.4ml 2x108CFU/ per mouse virulent hemorrhagic enteritis E. coli to challenge the resistance against infection.

为研制安全高效免疫调节剂增强动物免疫抗病能力，本实验设计合成含11个C pG基序的寡聚核苷酸，重组构建含CpG的VR1012质粒(VR1C)；制备壳聚糖纳米颗粒包裹重组质粒(CNP-VR1C)，肌注接种3周龄昆明小白鼠，设壳聚糖包裹空质粒和生理盐水对照组；接种后28天口服大肠杆菌攻毒观察小鼠天然免疫的变化和对强毒感染的抵抗力，Sandwich ELISA测定血清免疫球蛋白和白细胞介素含量。

The virulent experiment showed that ASJY mixture is safe and non-poisonous.

急性毒性实验表明，安神降压合剂安全无毒性。

The second and third group, which mainly contained very low virulent and nonpathogenic isolates, displayed high variation in both RAPD patterns and ITS sequences, compared with the first group.

第二、第三组与第一组在RAPD带型和ITS/5.8S区域序列上差异大，且致病性极弱或不致病。

The new chimeric infectious DNA clone and its derived, a virulent chimeric virus are constructed from the nonpathogenic PCV1 in which the immunogenic ORF gene of the pathogenic PCV2 replaces a gene of the nonpathogenic PCV1, preferably in the same position.

所述新型嵌合的传染性DNA克隆及其衍生的有毒力的嵌合病毒是用非致病性PCV1构建的，其中，致病性PCV2的免疫原性ORF基因取代了非致病性PCV1的基因，优选是在相同的位置上取代。

Interestingly, the nho1 mutant also supported the growth of Pseudomonas fluorescens, a plant associating, nonpathogenic bacterium. However, NHO1 does not appear to play a role in the basal resistance to virulent Pseudomonas bacteria.

有趣的是nho1突变体对于一种应依附于植物的非致病菌——荧光假单孢菌是感病的，然而对于毒性假单孢菌，NHO1似乎并没有起到什么抗性作用。

Methods Peritoneal macrophages of guinea pigs were infected in vitro by three different Leptospira strains, the virulent Leptospira interrogans serovar Lai type strain Lai, the avirulent L. interrogans serovar Lai type strain IPAV, and the nonpathogenic L. biflexa serovar Patoc type strain PatocⅠ, respectively, and heat inactivated Staphylococcus epidermidis was added 0.5, 1.5, 3 and 6 h after infection and incubated for 30 min. The effect of Leptospira on the phagocytosis of macrophage was evaluated by the inactivated Staphylococcus epidermidis phagocytosis rate and phagocytosis index. Phagocytosis and ultrastructure of peritoneal macrophages were observed by transmission electron microscopy 3 h after infection, and changes of cytoskeleton of the macrophages were observed by laser scanning confocal microscopy.

用三种不同毒力的钩体（致病性问号钩端螺旋体赖型有毒株Lai株、赖型无毒株IPAV株以及非致病性双曲钩端螺旋体Patoc型PatocⅠ株）分别感染体外培养的豚鼠腹腔巨噬细胞，并分别于感染后0.5、1.5、3和6 h加入热灭活表皮葡萄球菌孵育30 min，通过计算巨噬细胞对灭活表皮葡萄球菌的吞噬率和吞噬指数，检测钩体对巨噬细胞吞噬功能的影响；感染后3 h透射电镜观察巨噬细胞对钩体的吞噬、降解和细胞超微结构的变化；用激光共聚焦显微镜观察细胞对钩体的吞噬和巨噬细胞细胞骨架的变化。

Arsenic regards human body as the element that does not need, noxiousness is very strong, the 3 oxidation in its compound 2 arsenic are the virulent medicaments that women and children all knows -- arsenic.

砷作为人体不需要的元素，毒性非常强，其化合物中的三氧化二砷是妇幼皆知的剧毒药物——砒霜。

Intention Appraise posting thorax obturate elicit treated virulent thorax seeper curative effect,and general thorax pump centesis compare.

目的 评价置管胸腔闭式引流治疗恶性胸腔积液的疗效，并与常规胸腔穿刺抽液术比较。

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％。