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<p>The COVID-19 pandemic has accelerated the development of intranasal and inhaled COVID-19. vaccines. Four vector-based and one adjuvanted protein-based vaccines have been licenced. They have been shown to be safe. However, their ability to induce strong protective mucosal immunity in humans remains to be improved. Diversifying intranasal vaccine platforms, improving the delivery of vaccine components and determining mucosal correlates of protection could help in optimizing intranasal COVID-19 vaccine efficacy.</p>

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Current status of intranasal and inhaled COVID-19 vaccines

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年4月2日

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  • Stephanie Longet,
  • Stephane Paul

摘要

The COVID-19 pandemic has accelerated the development of intranasal and inhaled COVID-19. vaccines. Four vector-based and one adjuvanted protein-based vaccines have been licenced. They have been shown to be safe. However, their ability to induce strong protective mucosal immunity in humans remains to be improved. Diversifying intranasal vaccine platforms, improving the delivery of vaccine components and determining mucosal correlates of protection could help in optimizing intranasal COVID-19 vaccine efficacy.