接种山羊痘强毒的山羊都发生山羊痘的典型临床症状和病理变化。
The characteristic clinical symptoms and pathological changes of goatpox were found in all goats inoculated virulent goatpox virus.
Astrogenetix利用这快速繁殖和超活性状态去遥控沙门氏菌负责感染的基因然后去除这强毒基因以建立疫苗弱毒株。
Astrogenetix took advantage of that fast-growing, super-active state to home in on the salmonella genes responsible for infectiousness, and then removed said genes to create a weak vaccine strain.
目的提高昆明鼠抗弓形虫强毒株（RH株）的免疫力，延长其生存时间，为进行相关实验研究提供动物模型。
Objective To improve immunity of KM murine against virulent RH strain of Toxoplasma, to extend its duration of life and provide model for related research.
以艾维茵肉鸡为试验动物，研究了垂体肾上腺轴在传染性腔上囊病病毒(IBDV)强毒株攻击时对免疫系统的调节作用。
Avian broilers were used as experimental objects to study the mechanism of the pituitary adrenal axis regulating immune system when being infected with virulent infectious bursal disease virus (IBDV).
结论麻疹病毒的减毒株与强毒株存在差异。
Conclusion The attenuated measles virus strain is different from strong virus strain.
结论纳米级水镁石纤维粉尘具有明显的细胞毒性，其细胞毒作用较普通水镁石纤维粉尘强，较石英粉尘弱。
Conclusion The cytotoxicity of millimicron brucite fiber was obviously stronger than common brucite fiber, but much weaker than quartz dust.
结果说明应用所设计的引物进行RTPCR快速检测PRRS是可行的，为我国快速特异诊断PRRS和PRRSV强毒株的深入研究奠定了基础。
The result showed that PRRSV can be quickly diagnosed by RT PCR, which laid a basis for quick diagnosis of PRRS and further research of the PRRSV isolates of our country.
对分离的痘病毒进行动物致病性试验、病毒分离传代和致弱试验、致弱毒保护力试验和返强试验。
The virus was analyzed by the animal pathogenicity test, virus attenuation, protection of the attenuated virus and virulence return experiment.
分子靶向治疗比传统的化疗特异性强、毒副反应小，将成为今后肿瘤治疗的新趋势。
Molecular targeted therapy has limited or nonexistent side effects on normal cells of the body, unlike traditional chemotherapy.
通过超薄切片和透射电子显微镜技术对鸭病毒性肠炎病毒(DEV)CH强毒株在鸭胚成纤维细胞(DEF)中的形态结构进行了研究。
Ultrathin sectioning and transmission electron microscopy of infected duck embryo fibroblasts (DEF) were employed to investigate the morphology of virulent duck enteritis virus (DEV) strain CH.
结果对于小鼠黑色素瘤细胞B16，所有虫草菌HK-1提取物的细胞毒作用均比天然虫草提取物的作用强，其中以醋酸乙酯提取物的细胞毒作用最强。
Results All of the extracts from the cultivated Cs fungus HK-1 had much stronger cytotoxicity on B16 than those from natural Cs, and the EtOAc extract had the most potent activity.
为了解乙型脑炎（乙脑）减毒活疫苗弱毒株SA14142神经毒力的减弱程度，本文对弱毒株及其原株SA14强毒株进行了猴体和小白鼠的致病性和病理学变化的比较试验。
In order to study the attenuation of neurovirulence of SA14 14 2 attenuated vaccine virus, monkeys and mice were tested with the strain and its parent SA14 virulent strain.
接种MD三价疫苗的4个品系的商品鸡群，抗RB1B超强毒株攻毒的平均保护效力为94.60%；在模拟MD强毒自然传染的试验中，MD三价疫苗的保护效力达到95.65%。
The mean protection of trivalent vaccine was 94.60% in four commercial chicken strains against RB1B challenge, and was 95.65% in the MDV natural infection model experiment.
采用由弱到强按阶梯给药的方法，观察患者疼痛情况和毒副反应。
To observe the condition of pain and the action of toxic and(or) side effects.
两种植物的主根伸长对铝胁迫的差异不显著，而秋葵侧根对铝毒的抗性比两个供试的小麦基因型强；
There was no difference of root elongation between the H. moscheutos and wheat, but the lateral roots of H. moscheutos were more tolerant to Al than that of wheat genotypes.
短指软珊瑚的石油醚相显示较强的卤虫致死活性，并对KB和KBV200细胞显示了强的细胞毒活性。
The petroleum ether fraction of the soft coral Sinularia sp. exhibited high lethal rate to brine shrimp and strong cytotoxin to KB and KBV200 cells.
OA是一种具有强肾脏毒和肝脏毒的真菌毒素，并有致畸、致突变和致癌作用。
Toxicological studies have indicated that OA is a teratogenic, mutagenic and carcinogenic mycotoxin and is strong toxic effect on kidney and liver.
证实，该分离株为猪伪狂犬病强毒株，脾为病毒检测的首选靶器官。
The results revealed that the PRV isolate was virulent and the spleen was the most sensitive target organ for PRV detection.
证实，该分离株为猪伪狂犬病强毒株，脾为病毒检测的首选靶器官。
The results revealed that the PRV isolate was virulent and the spleen was the most sensitive target organ for PRV detection.
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