Cited by 2,098SARS-CoV-2 and COVID-19 ResearchAnimal Virus Infections Studiesvaccines and immunoinformatics approaches

SARS-CoV-2 vaccines in development

Open access
Krammer, Florian·2020·Nature

Abstract

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first reported in late 2019 in China and is the causative agent of the coronavirus disease 2019 (COVID-19) pandemic. To mitigate the effects of the virus on public health, the economy and society, a vaccine is urgently needed. Here I review the development of vaccines against SARS-CoV-2. Development was initiated when the genetic sequence of the virus became available in early January 2020, and has moved at an unprecedented speed: a phase I trial started in March 2020 and there are currently more than 180 vaccines at various stages of development. Data from phase I and phase II trials are already available for several vaccine candidates, and many have moved into phase III trials. The data available so far suggest that effective and safe vaccines might become available within months, rather than years.

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Crossref · 10.1038/s41586-020-2798-3

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  • The potential advantages of inactivated vaccines are non-replicability in the host, non-transmissibility, and induction of a broad range of humoral and cellular responses against different epitopes.

    “The potential advantages of inactivated vaccines are non-replicability in the host, non-transmissibility, and the induction of a broad range of humoral and cellular responses against different epitopes.”
  • Production and scale-up of inactivated vaccines are relatively easy in the context of good yield production systems and availability of biosafety level 3 facilities.

    “Their production and scale-up are relatively easy in the context of good yield production systems and the availability of biosafety level 3 facilities.7”
  • Eight weeks after the second mRNA vaccine dose, volunteers had high IgM and IgG binding titers to SARS-CoV-2 S and RBD.

    “8 weeks after the second vaccine injection volunteers showed high levels of IgM, and IgG anti-SARS-CoV-2 spike protein (S) and receptor binding domain (RBD) binding titers3,5,6.”
  • Neutralizing activity in plasma varied widely 3-14 weeks after the second dose; it resembled that in convalescent individuals at 1.3 months and exceeded that at 6.2 months.

    “In agreement with previous reports3,6,9, there was a broad range of plasma neutralizing activity 3–14 weeks after the second vaccine dose that was similar to that elicited by natural infection in a convalescent cohort after 1.3 months, and greater than the activity at 6.2 months after infection (Fig. 1a, Extended Data Table 1).”
  • Vaccinees had significantly higher IgG and IgM than convalescent patients tested 1.3 and 6.2 months after infection; IgA was comparable.

    “In line with previous reports3,6,9, IgG and IgM levels were significantly higher in the vaccinated group compared to a cohort of convalescent patients assayed 1.3 and 6.2 months after infection, while IgA levels were similar (Extended Data Fig 1j–l).”

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Authors
Krammer, F.
Affiliations
Icahn School of Medicine at Mount Sinai (US)
Corresponding author
Krammer, Florian
Venue
Nature
Published
2020-09-23
Volume
586
Issue
7830
Pages
516-527
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W3087924281
Cited by
2,098
References
101
Citations by year
2026: 91 · 2025: 147 · 2024: 173 · 2023: 287 · 2022: 538 · 2021: 747 · 2020: 112 · 2019: 1
FWCI
19.97
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Zenodo (CERN European Organization for Nuclear Research) (cc-by)
Funders
  • JPB Foundation (2020-215611, HHSN272201400008C, 75N93019C00051)
  • Open Philanthropy Project (#2020-215611, 75N93019C00051, HHSN272201400008C)
  • National Institute of Allergy and Infectious Diseases (HHSN272201400008C), 75N93019C00051, 2020-215611, HHSN272201800048C)
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Virus Infections Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
Keywords
SARS-CoV-2, COVID-19 vaccines, vaccine development, vaccine candidate, clinical trials, animal studies, vaccine safety, vaccine efficacy, COVID-19 pandemic
MeSH terms
Drug Development, COVID-19, COVID-19 Vaccines, Animals, Clinical Trials as Topic, Drug Industry, Humans, Pneumonia, Viral, Viral Vaccines, Coronavirus Infections, Immunity, Mucosal, Pandemics

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