T-cell and antibody responses to first BNT162b2 vaccine dose in previously infected and SARS-CoV-2-naive UK health-care workers: a multicentre prospective cohort study
<p><strong>Background</strong></p> Previous infection with SARS-CoV-2 affects the immune response to the first dose of the SARS-CoV-2 vaccine. We aimed to compare SARS-CoV-2-specific T-cell and antibody responses in health-care workers with and without previous SARS-CoV-2 in...
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| অন্যান্য লেখক: | |
| বিন্যাস: | Journal article |
| ভাষা: | English |
| প্রকাশিত: |
Elsevier
2021
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| _version_ | 1826294577296834560 |
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| author | Angyal, A Longet, S Moore, SC Payne, RP Harding, A Tipton, T Rongkard, P Ali, M Hering, LM Meardon, N Austin, J Brown, R Skelly, D Gillson, N Dobson, SL Cross, A Sandhar, G Kilby, JA Tyerman, JK Nicols, AR Spegarova, JS Mehta, H Hornsby, H Whitham, R Conlon, CP Jeffery, K Goulder, P Frater, J Dold, C Pace, M Ogbe, A Brown, H Ansari, MA Adland, E Brown, A Chand, M Shields, A Matthews, PC Hopkins, S Hall, V James, W Rowland-Jones, SL Klenerman, P Dunachie, S Richter, A Duncan, CJA Barnes, E Carroll, M Turtle, L de Silva, TI |
| author2 | PITCH Consortium Group |
| author_facet | PITCH Consortium Group Angyal, A Longet, S Moore, SC Payne, RP Harding, A Tipton, T Rongkard, P Ali, M Hering, LM Meardon, N Austin, J Brown, R Skelly, D Gillson, N Dobson, SL Cross, A Sandhar, G Kilby, JA Tyerman, JK Nicols, AR Spegarova, JS Mehta, H Hornsby, H Whitham, R Conlon, CP Jeffery, K Goulder, P Frater, J Dold, C Pace, M Ogbe, A Brown, H Ansari, MA Adland, E Brown, A Chand, M Shields, A Matthews, PC Hopkins, S Hall, V James, W Rowland-Jones, SL Klenerman, P Dunachie, S Richter, A Duncan, CJA Barnes, E Carroll, M Turtle, L de Silva, TI |
| author_sort | Angyal, A |
| collection | OXFORD |
| description | <p><strong>Background</strong></p>
Previous infection with SARS-CoV-2 affects the immune response to the first dose of the SARS-CoV-2 vaccine. We aimed to compare SARS-CoV-2-specific T-cell and antibody responses in health-care workers with and without previous SARS-CoV-2 infection following a single dose of the BNT162b2 (tozinameran; Pfizer–BioNTech) mRNA vaccine.
<p><strong>Methods</strong></p>
We sampled health-care workers enrolled in the PITCH study across four hospital sites in the UK (Oxford, Liverpool, Newcastle, and Sheffield). All health-care workers aged 18 years or older consenting to participate in this prospective cohort study were included, with no exclusion criteria applied. Blood samples were collected where possible before vaccination and 28 (±7) days following one or two doses (given 3–4 weeks apart) of the BNT162b2 vaccine. Previous infection was determined by a documented SARS-CoV-2-positive RT-PCR result or the presence of positive anti-SARS-CoV-2 nucleocapsid antibodies. We measured spike-specific IgG antibodies and quantified T-cell responses by interferon-γ enzyme-linked immunospot assay in all participants where samples were available at the time of analysis, comparing SARS-CoV-2-naive individuals to those with previous infection.
<p><strong>Findings</strong></p>
Between Dec 9, 2020, and Feb 9, 2021, 119 SARS-CoV-2-naive and 145 previously infected health-care workers received one dose, and 25 SARS-CoV-2-naive health-care workers received two doses, of the BNT162b2 vaccine. In previously infected health-care workers, the median time from previous infection to vaccination was 268 days (IQR 232–285). At 28 days (IQR 27–33) after a single dose, the spike-specific T-cell response measured in fresh peripheral blood mononuclear cells (PBMCs) was higher in previously infected (n=76) than in infection-naive (n=45) health-care workers (median 284 [IQR 150–461] vs 55 [IQR 24–132] spot-forming units [SFUs] per 106 PBMCs; p<0·0001). With cryopreserved PBMCs, the T-cell response in previously infected individuals (n=52) after one vaccine dose was equivalent to that of infection-naive individuals (n=19) after receiving two vaccine doses (median 152 [IQR 119–275] vs 162 [104–258] SFUs/106 PBMCs; p=1·00). Anti-spike IgG antibody responses following a single dose in 142 previously infected health-care workers (median 270 373 [IQR 203 461–535 188] antibody units [AU] per mL) were higher than in 111 infection-naive health-care workers following one dose (35 001 [17 099–55 341] AU/mL; p<0·0001) and higher than in 25 infection-naive individuals given two doses (180 904 [108 221–242 467] AU/mL; p<0·0001).
<p><strong>Interpretation</strong></p>
A single dose of the BNT162b2 vaccine is likely to provide greater protection against SARS-CoV-2 infection in individuals with previous SARS-CoV-2 infection, than in SARS-CoV-2-naive individuals, including against variants of concern. Future studies should determine the additional benefit of a second dose on the magnitude and durability of immune responses in individuals vaccinated following infection, alongside evaluation of the impact of extending the interval between vaccine doses.
<p><strong>Funding</strong></p>
UK Department of Health and Social Care, and UK Coronavirus Immunology Consortium. |
| first_indexed | 2024-03-07T03:47:49Z |
| format | Journal article |
| id | oxford-uuid:c01eeedd-7942-43a8-b69c-e7b8577ea00d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:47:49Z |
| publishDate | 2021 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:c01eeedd-7942-43a8-b69c-e7b8577ea00d2022-03-27T05:52:33ZT-cell and antibody responses to first BNT162b2 vaccine dose in previously infected and SARS-CoV-2-naive UK health-care workers: a multicentre prospective cohort studyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c01eeedd-7942-43a8-b69c-e7b8577ea00dEnglishSymplectic ElementsElsevier2021Angyal, ALonget, SMoore, SCPayne, RPHarding, ATipton, TRongkard, PAli, MHering, LMMeardon, NAustin, JBrown, RSkelly, DGillson, NDobson, SLCross, ASandhar, GKilby, JATyerman, JKNicols, ARSpegarova, JSMehta, HHornsby, HWhitham, RConlon, CPJeffery, KGoulder, PFrater, JDold, CPace, MOgbe, ABrown, HAnsari, MAAdland, EBrown, AChand, MShields, AMatthews, PCHopkins, SHall, VJames, WRowland-Jones, SLKlenerman, PDunachie, SRichter, ADuncan, CJABarnes, ECarroll, MTurtle, Lde Silva, TIPITCH Consortium Group<p><strong>Background</strong></p> Previous infection with SARS-CoV-2 affects the immune response to the first dose of the SARS-CoV-2 vaccine. We aimed to compare SARS-CoV-2-specific T-cell and antibody responses in health-care workers with and without previous SARS-CoV-2 infection following a single dose of the BNT162b2 (tozinameran; Pfizer–BioNTech) mRNA vaccine. <p><strong>Methods</strong></p> We sampled health-care workers enrolled in the PITCH study across four hospital sites in the UK (Oxford, Liverpool, Newcastle, and Sheffield). All health-care workers aged 18 years or older consenting to participate in this prospective cohort study were included, with no exclusion criteria applied. Blood samples were collected where possible before vaccination and 28 (±7) days following one or two doses (given 3–4 weeks apart) of the BNT162b2 vaccine. Previous infection was determined by a documented SARS-CoV-2-positive RT-PCR result or the presence of positive anti-SARS-CoV-2 nucleocapsid antibodies. We measured spike-specific IgG antibodies and quantified T-cell responses by interferon-γ enzyme-linked immunospot assay in all participants where samples were available at the time of analysis, comparing SARS-CoV-2-naive individuals to those with previous infection. <p><strong>Findings</strong></p> Between Dec 9, 2020, and Feb 9, 2021, 119 SARS-CoV-2-naive and 145 previously infected health-care workers received one dose, and 25 SARS-CoV-2-naive health-care workers received two doses, of the BNT162b2 vaccine. In previously infected health-care workers, the median time from previous infection to vaccination was 268 days (IQR 232–285). At 28 days (IQR 27–33) after a single dose, the spike-specific T-cell response measured in fresh peripheral blood mononuclear cells (PBMCs) was higher in previously infected (n=76) than in infection-naive (n=45) health-care workers (median 284 [IQR 150–461] vs 55 [IQR 24–132] spot-forming units [SFUs] per 106 PBMCs; p<0·0001). With cryopreserved PBMCs, the T-cell response in previously infected individuals (n=52) after one vaccine dose was equivalent to that of infection-naive individuals (n=19) after receiving two vaccine doses (median 152 [IQR 119–275] vs 162 [104–258] SFUs/106 PBMCs; p=1·00). Anti-spike IgG antibody responses following a single dose in 142 previously infected health-care workers (median 270 373 [IQR 203 461–535 188] antibody units [AU] per mL) were higher than in 111 infection-naive health-care workers following one dose (35 001 [17 099–55 341] AU/mL; p<0·0001) and higher than in 25 infection-naive individuals given two doses (180 904 [108 221–242 467] AU/mL; p<0·0001). <p><strong>Interpretation</strong></p> A single dose of the BNT162b2 vaccine is likely to provide greater protection against SARS-CoV-2 infection in individuals with previous SARS-CoV-2 infection, than in SARS-CoV-2-naive individuals, including against variants of concern. Future studies should determine the additional benefit of a second dose on the magnitude and durability of immune responses in individuals vaccinated following infection, alongside evaluation of the impact of extending the interval between vaccine doses. <p><strong>Funding</strong></p> UK Department of Health and Social Care, and UK Coronavirus Immunology Consortium. |
| spellingShingle | Angyal, A Longet, S Moore, SC Payne, RP Harding, A Tipton, T Rongkard, P Ali, M Hering, LM Meardon, N Austin, J Brown, R Skelly, D Gillson, N Dobson, SL Cross, A Sandhar, G Kilby, JA Tyerman, JK Nicols, AR Spegarova, JS Mehta, H Hornsby, H Whitham, R Conlon, CP Jeffery, K Goulder, P Frater, J Dold, C Pace, M Ogbe, A Brown, H Ansari, MA Adland, E Brown, A Chand, M Shields, A Matthews, PC Hopkins, S Hall, V James, W Rowland-Jones, SL Klenerman, P Dunachie, S Richter, A Duncan, CJA Barnes, E Carroll, M Turtle, L de Silva, TI T-cell and antibody responses to first BNT162b2 vaccine dose in previously infected and SARS-CoV-2-naive UK health-care workers: a multicentre prospective cohort study |
| title | T-cell and antibody responses to first BNT162b2 vaccine dose in previously infected and SARS-CoV-2-naive UK health-care workers: a multicentre prospective cohort study |
| title_full | T-cell and antibody responses to first BNT162b2 vaccine dose in previously infected and SARS-CoV-2-naive UK health-care workers: a multicentre prospective cohort study |
| title_fullStr | T-cell and antibody responses to first BNT162b2 vaccine dose in previously infected and SARS-CoV-2-naive UK health-care workers: a multicentre prospective cohort study |
| title_full_unstemmed | T-cell and antibody responses to first BNT162b2 vaccine dose in previously infected and SARS-CoV-2-naive UK health-care workers: a multicentre prospective cohort study |
| title_short | T-cell and antibody responses to first BNT162b2 vaccine dose in previously infected and SARS-CoV-2-naive UK health-care workers: a multicentre prospective cohort study |
| title_sort | t cell and antibody responses to first bnt162b2 vaccine dose in previously infected and sars cov 2 naive uk health care workers a multicentre prospective cohort study |
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