致病性

The result suggested that the variation was not associate with pathogenicity, but have some thing to do with cell culture or tissue appetency. The research is of high significance.

表明VP〓高变区大多数氨基酸的变异可能与病毒的致病性关系不密切，而与对细胞培养或组织的亲和性的关系更为密切。

The Classical Swine Fever is caused by CSFV, a kind of virus epidemic disease with acute , hot and high contiguous infectious , which can be prevented and cured by butchery, insulate and the immunity inoculates. Vaccine of C-stub has following disadvantages: it must conserve in refrigerate and the atavism of the vaccine was often observed on immune pigs, which will affect the prevention of the CEF.

猪瘟是由猪瘟病毒引起的一种急性、热性和高度接触传染的病毒性传染病，其防治主要采取屠杀、隔离和免疫接种。C-株疫苗的主要缺点是需要冷冻保存以及免疫动物容易恢复致病，这将影响猪瘟的防治。

They shared the highest homology to "world-B" group isolates in Brassica pathotype (between 91.8% and 100%). Phylogenetic analysis based on the CP gene sequences of TuMV strains or isolates showed that these 6 TuMV isolates from Shandong belonged to "world-B" group.

所得6个分离物的CP基因的核苷酸序列同源性较高，在97.0%～99.4%之间，系统进化分析表明：它们与Brassica致病型分离物中的world-B组分离物的同源性最高（91.8%～100%），亲缘关系最近，从而从分子水平上将TuMV山东分离物划分为world-B组。

In this investigation, we found that mucoid phenotype and magA were not the most important factors to cause KP PLA complicated with metastatic infection.

由我们所搜集的临床克雷白氏肺炎杆菌菌株中发现，在其造成化脓性肝脓疡并发转移性的感染，高黏性与MagA可能都不是最重要的致病因子。

Objective To study the location of disease related gene in a hereditary spastic paraplegia family with autosomal dominant inheritance in Tibet.

目的对西藏地区的一个常染色体显性遗传的家族性痉挛性截瘫家系的致病基因进行定位研究。

According to Chair of Department of Neurology, Taipei Veterans General Hospital, Shuu-Jiun WANG, the activation of trigeminal vascular system in the brain is commonly regarded as the pathogenic mechanism for sick headache and cluster headache. Stick to this premise, the research team hypothesizes that the system activator Nociceptin and the system inhibitor Orexin A these two kinds of neuroproteins are related to the pain degree of migraine and cluster headache.

北荣神经内科主任王署君表示，脑内三叉神经血管系统活化与否，是医界公认的偏头痛与丛发性头痛致病机转，故研究团队推测，可活化该系统的致痛素，以及抑制该系统的下视丘素两种神经蛋白质，应与偏头痛与丛发性头痛的程度有关。

Caseous lymphadenitis in sheep and goat caused by Corynebaterium Pseudotuberlosis which could infect multiple animals, such as sheep, goat, camel, horse, bovine, is a kind of zoonotic and chronic infectious.

伪结核棒状杆菌能使绵羊、山羊、羊驼、骆驼、马、牛等多种动物致病，发病特征是受害动物的淋巴结肿大，呈脓性干酪性坏死；有的在肺、肝、脾和子宫角发生大小不等的结节，内含淡黄色干酪样物质。

Strains YL001 and YL002 formed a monophyletic clade with strains of X. nematophilus with sequence homology outweighing 99% and the sequence homology to genus Photorhabdus outweighing 94%. The lag, logarithmic, stationary and contabescence phase of the two bacteria were 0-6, 6-18, 18-66 and 66 h respectively; pH of strains YL001 and YL002 reduced to 5.70 and 5.56 at 12 h, respectively, and then rose gradually to 7.74 and 8.07 respectively when culture finished. Glucose content reduced quickly during 0-18 h, and then kept stable. Amido nitrogen content reached the lowest at 12 h and then rose slowly. YL001 exhibited the highest inhibitory effects at 54 h and YL002 exhibited highest inhibitory effects at 42 and 66 h respectively on B. cirerea and B. subtilis. Strains YL001 and YL002 belonged to X.

YL001和YL002菌株与嗜线虫致病杆菌种内菌株形成一个类群，序列同源性大于99%，与发光杆菌属内菌株的序列同源性大于94%。2菌株的延缓期、对数生长期、稳定期和衰亡期分别为0~6，6~18，18~66和66 h；培养12 h后，YL001和YL002菌株发酵液的pH值分别降低至5.70和5.56，此后逐渐上升，至发酵结束时其pH值分别为7.74和8.07；培养0~18 h时2菌株发酵液中还原糖含量迅速降低，此后保持稳定；12 h时氨基氮含量达到最低，此后开始缓慢上升；YL001菌株培养54 h后及YL002菌株培养42和66 h后，其对番茄灰霉病菌和枯草芽孢杆菌的抑制作用最强。

Rabies virus, the etiologic agent of fatal neurological disease, is composed of five stuctural proteins, both of the glycoprotein and the nucleoprotein are believed the decisive factors for rabies diagnosis and classification and for rabies neurotropic, pathogenicity and antigenecity.

狂犬病毒由五种结构蛋白组成，其中NP对狂犬病的诊断和分类；GP对狂犬病毒的组织嗜性、致病和免疫保护都起着决定性的作用，并且分离自不同宿主或不同地理位置的狂犬病毒之间存在着NP和GP抗原性差异，研究这种差异并结合流行病学资料有助于发现流行来源的线索。

Progressive atrophic rhinitis is an important respiratory disease in swine industry, caused by toxigenic Pasteurella multocida. The OmpH of Pasteurella mumtocida is a major outer membrane protein involved in the pathogenesis and immunity. In this study the ompH gene of P.

传染性萎缩性鼻炎是养猪业中的一种重要的呼吸道传染病，产毒素多杀性巴氏杆菌是其重要的病原之一，外膜蛋白H在该菌的致病和免疫中发挥重要作用。

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。