Fig. 2: Cellular immune responses to Omicron.
From: Vaccines elicit highly conserved cellular immunity to SARS-CoV-2 Omicron
T cell responses at months 1 and 8 following final vaccination with Ad26.COV2.S (n = 20) or BNT162b2 (n = 27). a, b, Pooled peptide spike-specific IFNγ CD8+ T cell responses (a) and CD4+ T cell responses (b) by intracellular cytokine staining assays. Responses were measured against the SARS-CoV-2 WA1/2020, B.1.617.2 (Delta) and B.1.1.529 (Omicron) variants. Responses in five unvaccinated, uninfected individuals are also shown. Media backgrounds were subtracted from the specific values. Medians (red bars) are depicted and numerically shown.
