致病

There is no doubt that bacteria are the main etiologic agents for periodontal disease. With the progression of periodontal destruction, the following syptoms may occur: moderate to severe gingival inflammation, increased tooth mobility, pathological migration, vertical occlusal dimension loss, improper crown to root ratio, furcation involvement, absence of keratinized gingiva, unaesthetic appearance, as well as difficulties in chewing causing by unstable occlusion.

中文摘要细菌是牙周疾病的主要致病因素已是不争的事实，但随著牙周疾病破坏的进程，临床上表现出来的徵兆除了中度至重度不等的牙龈发炎现象之外，更可发现牙齿摇动度渐增、牙齿位移、咬合高度丧失、不良的牙冠根比、根叉病变、角化牙龈宽度不足、美观不佳、更甚者缺乏稳定的咬合导致咀嚼困难等。

These results reveal that no disease genes were found in SCA4, 5, 11, 13, 14 types among the 73 unclassified SCA patients.

这结果显示在现有的73个无法定出类型的SCA病人中，并未发现SCA4， 5， 11， 13， 14等五种SCA的致病基因。

In the host aspect, many studies underscore that the importance of inflammation in the pathogenesis of tuberculosis.

在宿主方面目前许多研究著重於发炎过程在肺结核致病的过程中所扮演的角色。

The pathogenic genes are still unlocated, even the candidate gene remains unknown.

人类肛门直肠畸形的致病基因至今没有得到定位，甚至没有明确的候选基因。

It is caused by two virus variants called Variola major and Variola minor.

天花病毒也是最大的可以在人体内致病的病毒。

Objective To establish fast, sensitive and precise methods for detecting Kanagawa phenomenon-positive vibrio parahaemolyticus.

目的 建立快速、敏感、特异和精确的方法检测致病性副溶血弧菌。

As a result of using 4 species pathogen probes,the positive rate of Vibrio alginolyticus and V. vulnificus is 3.4%.

在常见的4种致病性弧菌的检测结果上，创伤弧菌和溶藻弧菌阳性率均为3.4%。

The results showed that there existed high variability of virulence among the isolates.

研究结果表明，不同菌株间存在明显的致病力分化。

We review the virulence factors and the molecular biological research progress.

本文在简要介绍致病因子的基础上，详细综述了分子生物学研究的进展情况。

This research results are very important to diagnose cotton wilt diseases andresearch virulence mechanism and disease forecast.

本实验结果对棉花黄萎病的早期诊断、致病机理研究和预测预报有着十分重要的现实意义。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。