传染性病毒

The thymidine kinase gene of infectious laryngotracheitis virus Beijing E2 strain was amplified by PCR, cloned into pGEM-T vector, and sequenced. Sequence analyses showed that the TK gene was very closed among sequenced ILTV strains.

以纯化的传染性喉气管炎病毒北京E2株基因组DNA为模板，通过PCR方法扩增了ILTV北京E2株的完整TK基因，将其克隆到pGEM-T载体上，并测定了序列，与其它ILTV毒株TK基因比较说明，ILTV不同毒株的TK基因高度保守。

The genes gB,gC and gD amplified from infectious laryngotracheitis virus Chinese Wanggang strain were cloned into the Eco RⅠ site of the eukaryotic expression vector pCAGGS,re-spectively. The positive recombinant plasmids were screened by transforming into E.coli DH5 α cells,which were named pCAGG-gB,pCAGG-gC and pCAGG-gD respectively after identification by restriction endonuclease analysis and sequencing analysis.

将传染性喉气管炎病毒王岗株的gB、gC、gD基因分别克隆到真核表达载体pCAGGS的 Eco RⅠ位点，经过酶切、测序分析，筛选鉴定出含有gB、gC、gD基因的重组质粒，分别命名为pCAGG-gB、pCAGG-gC、pCAGG-gD。

AIM:To establish in vitro culture method for growth of transmissible gastroenteritis virus and to perform in vitro inhibition studies of luteolin on TGEV.

目的：建立猪传染性胃肠炎病毒的体外培养方法，观察木犀草素对TGEV的抑制作用。

After using the methenamine silver-DNA staining,15 cases of eariy molluscum contagiosumtissues were examined by electron microscopy.

用DNA银染技术显示了传染性软疣病毒形态发生发育及其过程中DNA的变化。

Objective To analyze the effect of EpsteinBarr virus infection on immunity function in children with infectious mononucleosis.

目的 研究小儿传染性单核细胞增多症免疫功能动态变化，观察EB病毒感染对免疫功能影响，为判断预后及治疗提供依据。

Mumps is a contagious disease caused by a virus.

腮腺炎是一种由病毒引起的传染性疾病。

One class of encephalitis attacks the myelin sheath that insulates nerve fibres rather than the neurons themselves.

传染性脑炎最常见的病原为病毒。其中之一会攻击髓鞘，隔绝了神经纤维而非神经元。

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。

Result A average positive rate was 21.55% of porcine contagious pleuropneumonia. And the mixed infection between porcine contagious pleuropneumonia and the other pathogens given above was confirmed.

结果］平均阳性率为21.55%，同时在被检猪中又进行了猪瘟、圆环病毒、蓝耳病、伪狂犬病、弓形体等疾病感染的检测，证实猪传染性胸膜肺炎与病毒性、细菌性、寄生虫性疾病有着不同程度的混合感染。

Porcine Parvovirus Infection is the most common and important cause of infectious infertility.

猪细小病毒感染是引起猪传染性繁殖障碍的最普遍和最重要的原因。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。