Figure 2:

Comparison of neutralizing antibody titers (NT) to SARS-CoV-2 vaccine strain (WA-1), Beta, Delta, and Omicron VOC from healthcare workers with paired serum samples in a longitudinal cohort. Data shown at three timepoints: within 14–44 days post-dose-2 (Timepoint 1), at least 8 months post-dose-2 (Timepoint 2), and within 14–44 post-booster (Timepoint 3). Top panel shows NT titer for each variant across the three timepoints with connecting lines illustrating 15 paired samples in Timepoints 1 and 3. Bottom panel shows NT at each timepoint for each VOC. Fold change (increase/difference) represents geometric median fold change. P-values have been corrected for multiple comparisons using Bonferroni methods.