1. Two doses of SARS-CoV-2 vaccination induce robust immune responses to emerging SARS-CoV-2 variants of concern
- Author
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Skelly, DT, Harding, AC, Gilbert-Jaramillo, J, Knight, ML, Longet, S, Brown, A, Adele, S, Adland, E, Brown, H, Chinnakannan, S, Donnison, T, Ali, M, Rongkard, P, Pace, M, Zacharopoulou, P, Robinson, N, Csala, A, De Lara, C, Hutchings, CL, Mehta, H, Lee, LN, Edmans, M, Hackstein, C-P, Phalora, P, Li, W, Phillips, E, Malone, T, Ogbe, A, Jay, C, Tipoe, T, Tipton, T, Stafford, L, Mentzer, AJ, Johnson, SA, Amini, A, Marjot, T, Dimitriadis, S, Simmons, B, Deeks, A, Kerneis, S, Abuelgasim, H, Wilson, R, Thomas, SR, Watson, A, Alhussni, A, Cutteridge, J, Weeks, E, Denly, L, Lillie, K, Holmes, J, Matthews, PC, O’Donnell, D, Tan, TK, Schimanski, L, Huang, K-YA, Rijal, P, Turtle, L, de Silva, T, Richter, A, Duncan, CJA, Payne, RP, Moore, SC, Knight, JC, Cassar, MP, Raman, B, Neubauer, S, Fries, A, Talbot, NP, Petousi, N, Ho, L-P, Peng, Y, Dong, T, Camara, S, Marinou, S, Linder, A, Adlou, S, Kasanyinga, M, Bridges-Webb, A, Hill, J, Silva-Reyes, L, Blackwell, L, Frater, J, Goulder, P, Conlon, CP, Jeffery, K, Dold, C, Pollard, AJ, Sigal, A, de Oliveira, T, Townsend, AR, Klenerman, P, Dunachie, SJ, Barnes, E, Carroll, MW, and James, WS
- Abstract
The extent to which immune responses to natural infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and immunization with vaccines protect against variants of concern (VOC) is of increasing importance. Accordingly, here we analyse antibodies and T cells of a recently vaccinated, UK cohort, alongside those recovering from natural infection in early 2020. We show that neutralization of the VOC compared to a reference isolate of the original circulating lineage, B, is reduced: more profoundly against B.1.351 than for B.1.1.7, and in responses to infection or a single dose of vaccine than to a second dose of vaccine. Importantly, high magnitude T cell responses are generated after two vaccine doses, with the majority of the T cell response directed against epitopes that are conserved between the prototype isolate B and the VOC. Vaccination is required to generate high potency immune responses to protect against these and other emergent variants.
- Published
- 2021