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Summary of the immunogenicity for vaccination-BA.5 infection-XBB reinfection.
| Two doses | Three doses | BA.5 infection | XBB re-infection | |
|---|---|---|---|---|
| Nabs against WT | + | ++ | ++++ | ++ |
| Nabs against BA.5 | − | − | +++ | +++ |
| Nabs against XBB.1.9.1 | / | / | + | +++ |
| Virus-specific CD4+ T cell | − | + | +++ | / |
| Virus-specific CD8+ T cell | − | − | ++ | / |
+: positive; ++: significant high level; +++: very high level; ++++: extremely high level; −: undetectable; /: not tested.
