Table 2 Cellular immunogenicity outcomes against wild-type SARS-CoV-2 after the third dose of BNT162b2 in the evaluable analysis population

From: Antibody and T cell responses against wild-type and Omicron SARS-CoV-2 after third-dose BNT162b2 in adolescents

 

Adolescents three doses

Adults three doses

T cell responses

S-specific T cell responses on flow cytometry

N

26

28

GM % IFN-γ+CD4+ T cells (95% CI)

0.058% (0.031–0.111%)

0.054% (0.027–0.106%)

% positive (≥cut-off at 0.01%)

88.5%, P = 0.71

82.1%

GM % IL-2+CD4+ T cells (95% CI)

0.046% (0.022-0.095%)

0.040% (0.021–0.075%)

% positive (≥cut-off at 0.01%)

80.8%, P > 0.9999

78.6%

GM % IFN-γ+CD8+ T cells (95% CI)

0.045% (0.023–0.091%)

0.016% (0.006–0.038%)

% positive (≥cut-off at 0.01%)

84.6%, P = 0.002

42.9%

GM % IL-2+CD8+ T cells (95% CI)

0.027% (0.012–0.059%)

0.010% (0.005–0.020%)

% positive (≥cut-off at 0.01%)

76.9%, P = 0.052

50.0%

% positive with at least 1 cytokine and subset (IFN-γ+/IL-2+CD4/8+)

100%, P = 0.011

85.7%

  1. P values compare the proportion of positive responses between adolescents and adults by Fisher’s exact test
  2. S Spike, GM geometric mean, CI confidence interval, IFN-γ interferon-gamma, IL-2 interleukin-2