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.
如构建出突变体库，从中筛选出毒力减弱的副猪嗜血杆菌突变菌株，对研制出基因工程弱毒活疫苗具有重要意义。
So it's has great significance to construct the mutant storehouse and slecte the toxicity weak Hps mutant strain for developing the genetic engineering attenuated vaccine.
常温耐热型弱毒活疫苗对预防畜禽疾病具有重要作用，对它的研究越来越多，尤其是耐热冻干保护剂。
Hyophilized heat-resisting protector activity vaccines was importance to prevent epidemic diseases of animals, and was studied more and more, especially in hyophilized heat-resisting protector.
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.
应用组织学方法比较观察了猪繁殖与呼吸综合征病毒（PRRSV）弱毒细胞疫苗与灭活疫苗生殖道黏膜免疫的效果。
The effect of mucosal immune of porcine reproductive and respiratory syndrome virus (PRRSV) attenuated and disactived vaccine was investigated by histological method.
本发明还公开了所述基因缺失菌株在制备支气管败血波氏杆菌基因缺失疫苗（弱毒活疫苗）的应用。
The invention also discloses the application of the gene deleted bacterial strain in preparing the Bordetella bronchiseptica gene deleted vaccine (attenuated live vaccine).
本发明还公开了所述基因缺失菌株在制备支气管败血波氏杆菌基因缺失疫苗（弱毒活疫苗）的应用。
The invention also discloses the application of the gene deleted bacterial strain in preparing the Bordetella bronchiseptica gene deleted vaccine (attenuated live vaccine).
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