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pathogenicity

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pathogenicity n.【醫學】致病力，致病原因。

n. 【醫學】致病力，致病原因。 “balanced pathogenicity“ 中文翻譯：   平衡致病性“clostridium pathogenicity“ 中文翻譯：   梭菌致病性“cultural pathogenicity“ 中文翻譯：   文化病原性“degree of pathogenicity“ 中文翻譯：   致病程度“high pathogenicity“ 中文翻譯：   高致病性“horizontal pathogenicity“ 中文翻譯：   水平病原性“pathogenicity island“ 中文翻譯：   毒力島; 致病島“pathogenicity rate“ 中文翻譯：   致病率“rna pathogenicity“ 中文翻譯：   病原性“vertical pathogenicity“ 中文翻譯：   垂直病原性“intracerbral pathogenicity index“ 中文翻譯：   腦內致病指數“intracerebral pathogenicity index“ 中文翻譯：   腦內致病指數“pathogenicdryness-heat“ 中文翻譯：   燥熱邪氣“pathogenic yeast“ 中文翻譯：   致病酵母“pathogenicty“ 中文翻譯：   病原性；致病性“pathogenic wind-dampness“ 中文翻譯：   風濕邪氣“pathogenitas“ 中文翻譯：   致病力“pathogenic wind impairing lung“ 中文翻譯：   風邪傷肺“pathogenous“ 中文翻譯：   adj. ＝pathogenetic. “pathogenic wind“ 中文翻譯：   風寒濕,風,風淫,風氣,折風; 風邪

“ we can now understand how this virus becomes and the molecular basis for its pathogenicity , “ bu zhigao at the harbin veterinary research institute told reuters . the chinese researchers 據悉，中國研究人員已識別出一h5n1型禽流感致病基因，這項研究成果被發表在美國出版的病毒學雜志11月號刊上。

“ we can now understand how this virus becomes and the molecular basis for its pathogenicity , “ bu zhigao at the harbin veterinary research institute told reuters . the chinese researchers 據悉，中國研究人員已識別出一h5n1型禽流感致病基因，這項研究成果被發表在美國出版的病毒學雜志11月號刊上。

“ we can now understand how this virus becomes and the molecular basis for its pathogenicity , “ bu zhigao at the harbin veterinary research institute told reuters . the chinese researchers 據悉，中國研究人員已識別出一h5n1型禽流感致病基因，這項研究成果被發表在美國出版的病毒學雜志11月號刊上。

pathogenous

The pathogenic strains of yersinia enterocolitica carry a 45 - kb high pathogenicity island ( hpi ) comprising iron - uptake - related genes such as irp1 - irp2 and fyua , which has been observed in 93 % of the 60 entero - adhesive e . coli { eaec } strains and 80 % of the e . coli isolated from blood samples Hpi毒力島功能核心區主要的結構基因為irp2 、 irp1和fyua ，是高度保守的。 irp2和irp1分別編碼兩種高分子量蛋白hmwp2和hmwp1 ， fyua編碼鼠疫菌素受體。

In this review , the present advancement on the study for west nile virus was summarized , including the viral pathogenicity , the viral epidemical characteristics , the disease clinical sign the syndrome , diagnostical methods and the relevant vaccination , inorder to underpin the knowledge for further probing into this virus 通過對西尼羅病毒的病原學、流行特征、臨床表現、診斷以及疫苗的研究進行概括，為進一步了解和研究該病毒提供依據。

All these results suggested that the cause of 4d1 culture inhibiting the pathogenicity of scg1 is the decreased concentration of ahl molecule in scg1 cells , when presenting aii protein in 4d1 cells , and then not inducing the expression of virulence genes of scg 1 at low concentration of ahl molecules 由此推測，蘇云金芽胞桿菌影響病原菌致病性的原因在于降低了病原菌細胞內ahl類信號分子的濃度，使其達不到激活毒素基因表達的水平。

The results showed that the relative survival rate of zoospores decreased with the uv radiation time and distance increased , and the uv radiation could reduce the growth rate , survival capacity , pathogenicity and reproduction capacity of phythophthora sojae remarkably 結果表明：游動孢子的相對存活率隨照射距離及時間的延長而降低，紫外線照射使大豆疫霉菌生長速率、生存能力、生殖能力、致病性等都明顯降低。

The reason that different distribution frequency of hpi in various e . coli is unclear , either . as the high frequency distribution of hpi in eaggec , this study will focus on the following parts to discuss the function of yersiniae high - pathogenicity island in enteroaggregative e . coli 鑒于hpi在eaggec中的高頻分布，本研究擬從eaggec菌株出發，著重從以下幾個方面對eaggec攜帶的hpi毒力島的功能進行了研究。

Based on the host reaction and cluster analysis of disease severity , the 57 isolates of venturia inaequalis could be divided into three categories : strong ( pathotype ) , intermediate ( pathotype ) and weak pathogenicity ( pathotype ) respectively 根據寄主對病菌的反應類型并結合病害嚴重度的聚類分析結果，可將57株蘋果黑星病菌菌株劃分為3個類群：強致病力型、中等致病力型、弱致病力型。

Tests for safety and stability indicated that zj111 / pcdna3 - f as the oral ndv dna vaccine was of low pathogenicity to mice with only a few mice dead at a high dose of 109 cfu and no death with other groups dosed at or below 10s cfu 小鼠安全性試驗表明， zj111 / pcdna3 - f菌株只有在10 ~ 9cfu高劑量口服后引起個別小鼠的死亡，其它各口服劑量組菌沒有出現死亡。

According to the deduced amino acid of g gene , there are two glycosylation sites in strain 119 and gxbm at position 37 and 319 . there is few change in important neutralizing antigenic epitope and in some antigenic sites related with pathogenicity 119和gxbm株g基因推定氨基酸均有37 、 319兩個糖基化位點，重要的抗原位點及致病性相關位點基本沒有變化。

There was a 100 % homology which was among sd - 3 / 98 , js30 / 99 and hk46 for the hv region of vp2 . it was demoastrated that the new wibdv strains gx8 / 99 had changed in both pathogenicity and vp2 gene Sd l 97 、 sd 3 98 、 js 30 99相互之間及其與ibdv參考株hk46間均具有相當高的同源性，結果似乎說明ibdv毒株的致病性與vpz基因高變區變異的關系不大。

It has only emerged when chickens and turkeys are infected by strains of h5n1 of low pathogenicity from waterfowl , and that strain mutates into the highly pathogenic form within the poultry host , leading to an avian flu epidemic 雞只和火雞從水鳥身上感染致命性低的h5n1病毒，病毒在家禽宿主體內變種成高致病性病毒，引致禽流感疫癥爆發。

Sometimes these less harmful viruses may be introduced into poultry flocks . if so , then these low pathogenicity viruses may mutate into the more harmful highly pathogenic strain of the h5n1 virus and that is when the problem begins 這些威脅性較少的病毒間中或傳染至家禽群中，有機會變種成威脅性較大的高致病性h5n1病毒，引發問題。

Effects of uv radiation on biological characters , fungicide resistance and pathogenicity of phythophthora sojae were studied by treated the zoospores of phythophthora sojae with uv radiation 摘要以紫外線照射供試大豆疫霉菌游動孢子誘發突變，研究紫外線對大豆疫霉菌生物學性狀、抗藥性、致病性的影響。

Results showed that there was obvious difference in pathogenicity among those tested isolates that could produce different types of disease spots in their size , shape and color on the same inoculation host 結果表明，不同菌株在相同寄主上能產生不同類型的病斑，其病斑大小、形狀、顏色存在較大差異。

“ we can now understand how this virus becomes and the molecular basis for its pathogenicity , “ bu zhigao at the harbin veterinary research institute told reuters . the chinese researchers 據悉，中國研究人員已識別出一h5n1型禽流感致病基因，這項研究成果被發表在美國出版的病毒學雜志11月號刊上。

Pai is not only attributed to the pathogenicity of bacteria and specific phases of the infection progress but also play an important role in the evolution of bacterium 毒力島不僅賦予病原體特殊的致病能力，介導感染過程的特殊階段，而且在細菌進化過程中扮演重要角色。

Here sketches out its pathogenicity from several aspects , including its structure , its combining - way , its pathogenic mechanism and its recent advances 煙草野火病菌毒素是一種重要的致病因子，從該毒素的結構，合成，致病機制及研究現狀等方面概述了其在致病過程中的作用。