Abstract
Serum samples were collected pre- and post-booster vaccination with Comirnaty in 626 participants (aged ≥50 years) who had received two Comirnaty doses<30 days apart, two Comirnaty doses≥30 days apart or two Vaxzevria doses≥30 days apart. Irrespective of primary vaccine type or schedule, spike antibody GMTs peaked 2–4 weeks after second dose, fell significantly≤38 weeks later and rose above primary immunisation GMTs 2–4 weeks post-booster. Higher post-booster responses were observed with a longer interval between primary immunisation and boosting.
Original language | English |
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Article number | 2101114 |
Number of pages | 7 |
Journal | Eurosurveillance |
Volume | 27 |
Issue number | 1 |
DOIs | |
Publication status | Published - 6 Jan 2022 |
Bibliographical note
Funding Information: : This surveillance was funded by PHE now UK HealthSecurity Agency (UKHSA).
Open Access: This is an open-access article distributed under the terms of the Creative Commons Attribution (CC BY 4.0) Licence. You may share and adapt the material, but must give appropriate credit to the source, provide a link to the licence and indicate if changes were made.
Publisher Copyright: This article is copyright of the authors or their affiliated institutions, 2022.
Citation: Ireland Georgina, Whitaker Heather, Ladhani Shamez N, Baawuah Frances, Subbarao Sathyvani, Linley Ezra, Warrener Lenesha, O’Brien Michelle, Whillock Corinne, Martin Oliver, Moss Paul, Ramsay Mary E, Amirthalingam Gayatri, Brown Kevin E. Serological responses to COVID-19 Comirnaty booster vaccine, London, United Kingdom, September to December 2021. Euro Surveill. 2022;27(1):pii=2101114.
DOI: https://doi.org/10.2807/1560-7917.ES.2022.27.1.2101114