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. 2024 Mar 4;14:5365. doi: 10.1038/s41598-024-55320-1

Figure 5.

Figure 5

Mucosal immunity. Anti-Spike and anti-Receptor Binding Domain (RBD) IgG, IgA and associated secretory component were measured by ELISA at serial dilutions in 17 participants (mITT). The Area Under the Curve (AUC) was then normalized and expressed as % of internal positive control consisting of saliva collected from COVID-19 acute and convalescent patients.