流感-COVID组合重组蛋白质疫苗引起了对流感和SARS-CoV-2病毒感染的保护性免疫反应

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Intranasal Administration of Recombinant Influenza Vaccines in Chimeric Mouse Models to Study Mucosal Immunity

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Published on: June 25, 2015

Ying Huang¹, Hua Shi², David Forgacs¹

¹Cleveland Clinic Florida Research and Innovation Center, Port St. Lucie, FL, USA.

|January 31, 2024

概括

一种新的流感-COVID组合疫苗可以有效地预防流感和SARS-CoV-2感染. 这种单一疫苗提供了与单独疫苗相当的保护,简化了对这些严重的呼吸道疾病的免疫接种.

科学领域:

病毒学病毒学
免疫学免疫学免疫学
疫苗学疫苗学疫苗学

背景情况:

流感和SARS-CoV-2是高度传染的空气传播病毒,导致显著的发病率和死亡率.
与这些病毒的同时感染会导致严重的疾病,需要有效的预防策略.
目前的疫苗接种需要对流感和COVID-19进行单独的注射,这凸显了对联合疫苗的需求.

研究的目的:

开发和评估一种新型流感-COVID组合疫苗的疗效.
评估单一组合疫苗是否可以引起对流感和SARS-CoV-2的保护性免疫反应.

主要方法:

一种流感-COVID组合疫苗是使用流感病毒血质素 (HA) 和SARS-CoV-2 Spike (S) 蛋白质开发的,其配方是AddaVax.
转基因K18-hACE-2小鼠被用组合疫苗,单一疫苗或安慰剂接种疫苗,使用主要增强增强方案接种疫苗.
疫苗的有效性通过挑战接种疫苗的小鼠,用致命剂量的流感病毒和SARS-CoV-2来评估.

主要成果:

流感-COVID组合疫苗证明了对流感和SARS-CoV-2挑战的保护.
接种疫苗的小鼠显示,预防了体重减轻,并减少了疾病的临床症状.
组合疫苗引起的免疫反应与单个单一疫苗引起的免疫反应相似.

结论:

开发的流感-COVID组合重组蛋白质疫苗有效预防流感和COVID-19感染.
这种组合疫苗提供了针对两个主要的呼吸道病毒威胁的简化和有效的免疫策略.

关键词:

这是COVID-19联合疫苗.免疫反应是免疫反应.流感病毒是流感病毒.这就是SARS-CoV-2病毒.

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