We further examined whether the magnitude of the vaccine‐specific T cell response correlated with glycemia and other clinical parameters, including C‐reactive protein levels and estimated glomerular filtration rate (eGFR, Figure 3C), and only a negative correlation between the frequency of S‐specific CD8+ T cells after vaccination and C‐reactive protein levels was observed in participants with T1D. The gene discussed is CD8A; the disease is type 1 diabetes mellitus.