SARS-CoV-2 vaccines: a triumph of science and collaboration

JCI Insight. 2021 May 10;6(9):e149187. doi: 10.1172/jci.insight.149187.

Abstract

Roughly 1 year after the first case of COVID-19 was identified and less than 1 year after the sequencing of SARS-CoV-2, multiple SARS-CoV-2 vaccines with demonstrated safety and efficacy in phase III clinical trials are available. The most promising vaccines have targeted the surface glycoprotein (S-protein) of SARS-CoV-2 and achieved an approximate 85%-95% reduction in the risk of symptomatic COVID-19, while retaining excellent safety profiles and modest side effects in the phase III clinical trials. The mRNA, replication-incompetent viral vector, and protein subunit vaccine technologies have all been successfully employed. Some novel SARS-CoV-2 variants evade but do not appear to fully overcome the potent immunity induced by these vaccines. Emerging real-world effectiveness data add evidence for protection from severe COVID-19. This is an impressive first demonstration of the effectiveness of the mRNA vaccine and vector vaccine platforms. The success of SARS-CoV-2 vaccine development should be credited to open science, industry partnerships, harmonization of clinical trials, and the altruism of study participants. The manufacturing and distribution of the emergency use-authorized SARS-CoV-2 vaccines are ongoing challenges. What remains now is to ensure broad and equitable global vaccination against COVID-19.

Publication types

  • Review

MeSH terms

  • COVID-19 / immunology*
  • COVID-19 / prevention & control*
  • COVID-19 Vaccines / genetics
  • COVID-19 Vaccines / isolation & purification*
  • COVID-19 Vaccines / pharmacology*
  • Clinical Trials, Phase III as Topic
  • Global Health
  • Humans
  • Pandemics / prevention & control
  • Public-Private Sector Partnerships
  • SARS-CoV-2 / genetics
  • SARS-CoV-2 / immunology*
  • Safety
  • Vaccination / methods
  • Vaccination / trends

Substances

  • COVID-19 Vaccines