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Updated: May 22, 2025

Live Imaging and Quantification of Viral Infection in K18 hACE2 Transgenic Mice Using Reporter-Expressing Recombinant SARS-CoV-2
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Next-Generation Coronavirus Disease 2019 Vaccines: Clinical Data and Future Directions

Kathryn E Stephenson1

  • 1Center for Virology and Vaccine Research and Division of Infectious Diseases, Beth Israel Deaconess Medical Center, 330 Brookline E/CLS-1037, Boston, MA 02215, USA; Harvard Medical School, Boston, MA, USA; Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA.

Infectious Disease Clinics of North America
|March 16, 2025
PubMed

Insights

Next-generation COVID-19 vaccines aim to improve mucosal immunity and broaden protection against emerging variants. These advanced vaccines utilize new platforms like self-amplifying RNA for enhanced durability and effectiveness.

Area of Science:

  • Immunology
  • Vaccinology
  • Virology

Background:

  • Current COVID-19 vaccines have saved millions of lives but have limitations.
  • Existing vaccines show poor mucosal immunity, leading to reduced protection against infection and transmission.
  • Immune responses to current vaccines wane rapidly, and new severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants evade immunity.

Purpose of the Study:

  • To review next-generation COVID-19 vaccines with publicly available clinical data.
  • To highlight vaccines likely to advance in development for improved COVID-19 prevention.

Main Methods:

  • Review of clinical data for next-generation COVID-19 vaccine candidates.
  • Focus on vaccines employing novel platforms and administration routes.

Main Results:

  • Next-generation vaccines aim to enhance mucosal immunity through mucosal administration.
  • New platforms, such as self-amplifying RNA, are being explored for longer and broader immune responses.
  • Development focuses on overcoming limitations of current vaccines against infection and transmission.

Conclusions:

  • Next-generation COVID-19 vaccines show promise in addressing the limitations of current vaccines.
  • These advanced vaccines are expected to offer improved protection against infection, transmission, and emerging SARS-CoV-2 variants.
  • Further development of these vaccines is crucial for long-term pandemic control.
Keywords:
COVID-19Mucosal immunityNext generationSARS-CoV-2Vaccines

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