HD V有高度的传染性，及很强的致病力。
HDV infection having highly, and very strong with the result that disease dint.
动物试验结果表明，该菌对小白鼠有致病力。
动物试验结果表明，该菌对小白鼠有致病力。
致病力测定结果表明串珠镰刀菌的致病力最强；
The result of inoculation showed that F. moniliforme had the highest pathogenicity.
同一菌株对不同寄主品种的致病力也存在较大差异。
There was also obvious difference in pathogenicity even if different hosts were inoculated by the same spore isolates of Venturia inaequalis.
还从供试菌株中筛选出一套具有稳定致病力的鉴别菌株。
A set of strains with stable pathogenicity by screening from the strains tested were selected.
动物实验表明这些菌株对小鼠有较强的致病力和致死率。
But they had high fatality the and pathogenicity to mice in animal experiment.
目的：了解71株肠道病原菌的耐药性及对小鼠的致病力。
Objective: to investigate the drug resistances of 71 strains enteropathogens and pathogenicity to mouse.
但这种病原体的内在实质、特性、致病力，仍在加紧研究中。
But the essential nature of the pathogen, its personality, its virulence, remain matters of frenetic investigation.
通过离体叶片致病力鉴定发现，各菌株间致病力差异显著。
Pathogenicity identification analysis from leaves in vitro indicated that the pathogenicity among the strains was significantly different.
人类艾滋病毒获得致病力不可能是在短时间内发生的事情。
HumanPathogenicity of HIV can not be happening in a short time.
B9 R2的黑色素产生能力和致病力与亲本B9菌株相同。
There was no significant difference between B9 and B9-R2 in melanin production and pathogenicity.
然而最近几年在一些国家出现了一种新的高致病力的IBD。
S... However, in recent years a new, highly virulent form of IBD has emerged in many other countries around the world.
结果是棉花品种对黄萎病菌的反应因菌株的致病力强弱而不同。
Results indicated that the reaction of cotton varieties varies with the pathogenicity of different isolates.
结论短程化疗后残存空洞菌阴肺结核患者的痰5 %仍有致病力。
Conclusions 5% of sputum collected from PTB patients with cavitation but sputum negative still show pathogenicity after short course chemotherapy.
说明利用靶标昆虫的诱变来提高病原菌的致病力的方法是可行的。
The conclusion indicted that the pathogenicity could be improved through mutating by using the target insect.
按照在禽类群体中的致病力，可将禽流感病毒分为两类：高致病性或低致病性。
AI viruses are divided into two groups based on their ability to cause disease in poultry: high pathogenicity or low pathogenicity.
通过离体接种对菌株致病力进行鉴定，发现各菌株间致病力差异显著。
Pathogenicity identification analysis in vitro indicated significant difference in pathogenicity among the strains.
明确新疆主要植棉地区棉花黄萎病菌株的生物学特性及致病力分化情况。
Ascertain the biological characteristics and pathogenicity differentiation of cotton Verticillium dahliae strains in the major cotton production regions in Xinjiang.
③在苏薯9号和宁薯9-9上，各线虫群体致病力与线虫繁殖力呈正相关；
There were positive relationships between fecundity and pathogenicity on the Sushu No. 9 and Ningshu 9-9.
多瘤病毒：存在于野鼠身上、数量极少、致病力不强的一种感染性小病原体。
Polyoma virus: Minute infectious agent normally present in extremely small amounts in wild mice without causing obvious ill effects.
宿主的免疫系统可能反应过激并且杀死太多细胞，这可能是这个病毒更具致病力的关键因素。
The host's immune system may be overreacting and killing off too many cells, and that may be a key contributor to what makes this virus more pathogenic.
不同真菌间的混用、真菌与低剂量化学药剂间的混用及可克服其限制因素，提高病菌致病力；
The application of mycoherbicide combine with low rates of herbicides or other fungi can overcome some limitations, improve the pathogenicity.
其中在燕麦片培养基上生长最快，致病力也最强，但致病力的强弱与菌丝生长速率没有关系；
The results showed that the isolatte growth on OMA medium had greater growth rate and stronger virulence, but the virulence had no relation to growth rate.
目的：为了弄清肝病患者中庚型肝炎病毒(HGV)的临床感染情况和评估庚型肝炎病毒的致病力。
Aims: in order to clarify the clinical epidemic of hepatitis G virus (HGV) and evaluate the virulence of HGV.
目的比较10种临床少见酵母致病力的大小，体外对抗真菌药物敏感性的高低以及电泳核型的差异。
Objective To investigate the pathogenicity, susceptibility to antifungal drugs, and electrophoretic karyotype of clinically uncommon pathogenic yeasts.
结果表明：玉米小斑病菌C小种可采用PDA培养基与寄主叶片连续共培养的方法提高产孢量和致病力；
The results showed that Bipolaris maydis race C might improve spores production and pathogenicity by culturing on PDA medium with fresh leaves constantly;
而低致病力禽流感病毒同样可以给养禽业带来灭顶之灾，对人类的威胁同样严重，尤其是H9亚型禽流感。
But the low pathogenicity bird flu virus may bring the total destruction similarly to the poultry raising business, is similarly serious threat to humanity, particularly H9 hypotype bird flu.
并且以四种病毒的共感染组致病力最强，死亡率达78%；q X株感染组致病力最弱，死亡率为35%。
The mortality was most highest with four kinds of viruses total infection group (78%), the QX strain infected group was lightest (35%).
并且以四种病毒的共感染组致病力最强，死亡率达78%；q X株感染组致病力最弱，死亡率为35%。
The mortality was most highest with four kinds of viruses total infection group (78%), the QX strain infected group was lightest (35%).
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