Skip to main content
. 2022 Mar 8:eabn6150. doi: 10.1126/scitranslmed.abn6150

Fig. 3. Mucosal RBD-specific nasal swab IgA and IgG responses are increased following breakthrough infection after COVID-19 vaccination compared to uninfected, vaccinated individuals.

Fig. 3.

(A and B) SARS-CoV-2 RBD-specific IgA (A) and IgG (B) responses in nasal swabs were measured by ELISA. Vaccinated uninfected (open circles) and vaccinated infected (filled circles) individuals are shown. Nasal ELISA titers are shown against WA1/2020 and B.1.617.2 (delta) variant RBD proteins. Medians (red bar) for each variant are displayed below the x-axis. Dotted horizontal lines indicate limit of detection. P values reflect Wilcoxon rank-sum tests.