Relative levels of protection of RiVax peptides by SyH7, PA1, TB12, and PH12, as defined by HX-MS. The ΔHX values for each RiVax peptide are shown for MAbs (A) SyH7, (B) PA1, (C) TB12, and (D) PH12. The ΔHX values are color coded according to the Fig. 3 legend.