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Title
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Enabling the evaluation of COVID-19 vaccines with correlates of protection
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Author
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Abstract
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| In February 2023, a meeting about correlates of protection (CoPs) against COVID-19 was organized by the International Alliance for Biological Standardization, the European Plotkin Institute for Vaccinology, and Vaccinopolis. The meeting aimed at reviewing the evidence, drawing conclusions, and identifying knowledge gaps. Collection of evidence is not straightforward. Neutralizing antibodies correlate with protection and are used for immunobridging studies within and between vaccine platforms for approval of new COVID-19 vaccines. In preparation for the next pandemic, it is vital that rapidly authorized initial vaccines are available to perform immunobridging studies very early. Additional components of the immune response likely contribute to protection against symptomatic infection. Current evidence is strongest for T lymphocytes and binding antibodies. Further studies are needed to consolidate this evidence and define their potential role in the evaluation of vaccines. For evaluation of mucosal vaccines, identifying CoPs against infection and transmission is key; further research is needed to identify and standardize methods suitable for clinical studies. CoPs for broadly protective beta-coronavirus vaccines remain a critical area of research. The knowledge, expertise, and capacity exist to conduct clinical studies using different designs in different populations to discover and validate CoPs, facilitating and accelerating evaluation of novel vaccines/vaccination platforms. |
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Language
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English
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Source (journal)
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Biologicals. - New York
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Publication
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New York
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2024
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ISSN
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1045-1056
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DOI
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10.1016/J.BIOLOGICALS.2023.101723
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Volume/pages
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85
(2024)
, p. 1-8
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Article Reference
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101723
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ISI
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001113667600001
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Pubmed ID
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37976940
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Full text (Publisher's DOI)
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Full text (open access)
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