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Antibody responses for (A) monovalent rAT; (B) bivalent rAT; (C) monovalent rLukS-PV; and (D) bivalent rLukS-PV formulations following first and second vaccination in the completer population. Visits are based on pre-defined windows for serology sample collection and not on the nominal visit. All out-of-window sample collections are excluded). After Day 84, the number of subjects who received the booster dose in the bivalent 50 µg cohorts was six.
