德尔塔”毒株还未平息,另一新冠变异毒株“拉姆达”又在多国相继被发现,面对来势汹汹的新冠变异病毒毒株,疫苗需求在全球市场依然持续增长。
针对变异株,其实不管什么疫苗,综合效率一定会有折扣的。随着新变异株的出现,病毒对疫苗的逃逸也会越来越强.对于这些对人类健康造成巨大危害的病毒,传统疫苗(如灭活疫苗、DNA疫苗、病毒载体疫苗)激活特异性免疫的方式是直接将抗原蛋白注射进入人体,引起免疫反应,在应对病毒的不断变异中,效力会出现下降,造成免疫逃逸的风险。因此,发展更有效的疫苗刻不容缓.
mRNA疫苗是一种核酸疫苗,通过将病毒的部分mRNA片段注入人体细胞内产生抗原,再由此激发特异性免疫反应,达到形成免疫记忆的效果。
VERSA2100自动化高通量制备mRNA系统
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