国药集团指灭活疫苗对全球毒株均有广泛保护作用
国药集团中国生物副总裁张云涛表示,从中国生物获得的数据来看,灭活疫苗有广谱的保护性,对於全球的毒株都有广泛的保护作用。
他指出,疫苗从研发到附条件上市以来,对全球新冠病毒变异一直是持续关注的问题之一,去年4月份获得临床批件之际就把当时收集到的全球不同来源的毒株用当时的动物血清做了交叉分析免疫原性的研究工作。
他又指,从获得的数据来看,灭活疫苗有广谱的保护性,对於全球的毒株都有广泛的保护作用,观察到包括南非、英国、尼日利亚发现一些新的新冠病毒的变种,持续的在关注这一变化。中国生物已经开展了实验室的相关交叉中和试验的检测工作,这个检测工作正在持续的开展过程之中,後续中国生物会密切关注全球新冠病毒的变异情况,做好科研攻关工作。
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