Figure 6.

SARS-CoV-2 Omicron neutralization via antibodies induced with the PreS-RBD vaccines. VNT50 titers (y-axis) obtained with serum samples (IS4) of mice immunized with PreS-RBD fusion proteins or alum alone as indicated (x-axis) are shown as median values of triplicate determinations for each serum. Median VNT50 titers are shown with horizontal bars. Significant differences between each of the PreS-RBD-vaccinated groups determined using a two-tailed Mann–Whitney U-test, p values: (** < 0.001, * < 0.01) are indicated.