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Evaluation of the immunogenicity of prime-boost vaccination with the replication-deficient viral vectored COVID-19 vaccine candidate ChAdOx1 nCoV-19
Journal article   Peer reviewed

Evaluation of the immunogenicity of prime-boost vaccination with the replication-deficient viral vectored COVID-19 vaccine candidate ChAdOx1 nCoV-19

Simon P. Graham, Rebecca K. McLean, Alexandra J. Spencer, Sandra Belij-Rammerstorfer, Daniel Wright, Marta Ulaszewska, Jane C. Edwards, Jack W. P. Hayes, Veronica Martini, Nazia Thakur, …
npj vaccines, Vol.5(1), pp.69-69
27/07/2020
PMID: 32793398

Abstract

Immunology Life Sciences & Biomedicine Medicine, Research & Experimental Research & Experimental Medicine Science & Technology
Clinical development of the COVID-19 vaccine candidate ChAdOx1 nCoV-19, a replication-deficient simian adenoviral vector expressing the full-length SARS-CoV-2 spike (S) protein was initiated in April 2020 following non-human primate studies using a single immunisation. Here, we compared the immunogenicity of one or two doses of ChAdOx1 nCoV-19 in both mice and pigs. Whilst a single dose induced antigen-specific antibody and T cells responses, a booster immunisation enhanced antibody responses, particularly in pigs, with a significant increase in SARS-CoV-2 neutralising titres.
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https://doi.org/10.1038/s41541-020-00221-3View
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