challenge strain 中文意思是什麼

challenge strain 解釋
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  • challenge : n 1 挑戰，挑戰書，決斗書；（比賽等的）提議。2 要求，需求，鞭策。3 （哨兵對行人的）盤問，（對飛機...
  • strain : vt 1 用力拉，拉緊，抽緊，扯緊。2 使緊張；盡量使用（肌肉等）。3 強迫，強制；濫用，盡量利用。4 拉傷...
  1. A second study, involving ferrets, found the vaccine provided 96 percent cross - protection against a lethal challenge with the drifted indonesia virus strain

    第二項研究及跟蹤調查，發現疫苗96 %是通過保護來抵抗印尼漂浮病毒菌株這一致命病毒的挑戰。
  2. The result further proposed that different genotypes of ndv had not directed the antigenic changes of f protein, the most important protein of ndv in the protective immune response of the fowls. protective efficacy difference among various genotype ndv vaccines of different origin was studied. except the vaccine strain lasota ( genotype ii ), the challenge strain f48e8 in china, the ndv strains tested were isolated from nd outbreaks in chickens, gooses, and pigeons

    通過不同來源不同基因型（亞型） ndv滅活苗與常規疫苗（包括lasota弱毒活疫苗和滅活疫苗）的免疫保護效力的比較，證實了所有疫苗均能激發機體產生抗不同基因型ndv的抵抗力， hl抗體變化都具有一個抗體滴度迅速上升的過程，動態特徵除lasota弱毒活疫苗組有些不同外相當一致。
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