阐述了甘薯瘟菌系致病类型、品种抗性分类、抗性遗传趋势和病菌潜伏侵染特征；
The pathotypes, classification of cultivar resistance, advancement of resistance genetics and latent infection of bacterial wilt disease of sweet potato were presented.
并就新小种类型对目前主要生产品种和抗源的致病特点进行了研究，为品种布局和抗源选用提供了具体目标。
The pathogenic characteristics of the main productive varieties and resources are studied. This report also presents concrete objectives for variety deployment and selection of resistance resources.
相当多的旁证表明侯鸟能够传播低致病性禽流感的H5和H7亚型病毒给家禽，然后，变异成高致病性类型。
Considerable circumstantial evidence suggests that migratory birds can introduce low pathogenic H5 and H7 viruses to poultry flocks, which then mutate to the highly pathogenic form.
目的：为探讨脑血管意外患者院内获得性肺炎与年龄、入院时间、并发症、操作、用药的关系及致病菌类型。
Objective: To investigate the relation of nosocomial pneumonia of cerebrovascular accident and age, on admission, complication, operation, medication and pathogenic bacterium type.
研究选取了包括以上三种类型及不同寄主来源的五个代表菌株分别进行了培养条件及致病性试验。
Five isolates which included the three above types and isolated from different hosts were choosed for the test of culture and pathogenicity.
通过44例急性和17例慢性牙髓炎的厌氧消化链球菌检出率比较，探讨了该菌在同一牙病不同类型中的致病作用。
We compared the check rate of peptostreptococu anaerobius in 44 cases of acute pulpitis and 17 chronic cases, and analysed the pathogenicity of this bacteria in different types of pulpitis.
从生物学的角度，就炭疽与炭疽杆菌的生物学特点、病原学、致病性与症状类型、传播、免疫性、诊断、预防和治疗作了综合评述。
The biological characteristics, aetiology, pathogenicity, Symptom types, transmission, immunity, diagnosis, prevention and treatment of anthrax and anthrax bacillus were reviewed in this article.
此外，流感毒株的类型，品系和致病力以及免疫应答的基本特征，这些都在判定病毒产生耐药的可能性方面起了一定的作用。
In addition, the type, strain, and virulence of the influenza strain and the nature of the immune response all appear to play a role in determining the likelihood of drug resistance arising.
目的：了解药疹的类型及其相关致病药物，以有助于临床对药疹的诊治。
Objective: to understand the types of drug eruptions and their causative agents in order to help clinicians to diagnose and treat drug eruptions.
结果表明，不同菌株在相同寄主上能产生不同症状类型，同一菌株对不同寄主品种的致病力也存在较大差异。
Results showed that there was obvious difference in pathogenicity among those testing isolates There was also obvious difference in pathogenicity even if different hosts were inoculated by the same.
目的：探讨机械通气前后不同类型严重肺感染和抗生素应用时相应各时段的致病细菌构成与转换，为临床治疗提供有效依据。
Objective: To investigate the constituent ratio and change of bacterial strains in patients with severe pulmonary infection before and after mechanical ventilation.
结论该老年白内障患者MYH9基因未见致病性突变，其具有的严重临床表型可能与存在新的基因突变类型或新的致病基因有关。
Conclusions the presenile cataract with serious clinical entities may be resulted from a novel mutation or another novel pathogenic gene with MYH9? RD.
摘要：奇异变形杆菌是临床重要的条件致病菌，可以引起消化道、泌尿道等各种类型的感染。
Abstract: Proteus mirabilis is an important opportunistic pathogen, which can cause various infections, especially the severe and refractory urinary tract infection.
目的：了解药疹的类型及其相关致病药物，以有助于临床对药疹的诊治。
Objective: To study the causative agents, the character and curative effect of drug eruption.
本文主要从苹果再植病的类型、表现、致病因素(生物因素和非生物因素)以及防治措施等方面概述了十几年来人们在这方面的研究进展情况。
In this article, the possible factors related to the decrease of bee population number were analyzed, such as biological factors bacteria, viruses, fungi and parasites, etc.
MYH9基因40个外显子和侧翼区未见致病突变（除25号外显子发生一同义突变，突变类型为A1143A）。
No pathogenic mutation was detected in the exon and franking regions of MYH9 gene except a synonymous mutation(A1143A) in the exon 25.
MYH9基因40个外显子和侧翼区未见致病突变（除25号外显子发生一同义突变，突变类型为A1143A）。
No pathogenic mutation was detected in the exon and franking regions of MYH9 gene except a synonymous mutation(A1143A) in the exon 25.
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