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. 2023 Nov 29;98:104893. doi: 10.1016/j.ebiom.2023.104893

Fig. 3.

Fig. 3

Mucosal and serum antibody responses in convalescent compared to subjects with hybrid immunity. (a and b) Anti-triS IgA (log10 ng/mL) measured in NLF (a) and serum (b) of convalescent or subjects with hybrid immunity. (c) Anti-triS s-IgA (log10 AU/mL) antibody titers in NLF of convalescent or subjects with hybrid immunity. (d and e) Anti-triS IgG measured in NLF (d) and serum (e) of convalescent or subjects with hybrid immunity. A generalized linear model was used to determine differences of means, p values are shown above brackets. The mean + 3SD of 11 negative samples was used to set a cut-off for anti-triS IgA, s-IgA and IgG in NLF. The mean + 3SD of 56 pre-pandemic serum samples was used to set a cut-off for anti-triS IgA in serum samples. The mean + 3SD of 48 pre-pandemic serum samples was used to set a cut-off for anti-triS IgG in serum samples.