The XBB.1.5 mRNA booster vaccine does not significantly increase the percentage of XBB.1.5 mono-reactive T cells
Recent efforts in vaccine development have targeted spike proteins from evolving SARS-CoV-2 variants. In this study, we analyzed T cell responses to the XBB.1.5 and BA.2.86 subvariants in individuals who previously received bivalent vaccines containing…