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Comparison of day 0 gp and gE avidities with peak postimmunization avidities. Results are displayed in quartiles as per Fig. 1. (A) Day 0 avidities among participants with no previous shingles immunization. (B) Peak boosts in avidity among previously unimmunized persons. (C) Day 0 avidities among participants previously immunized with ZVL. (D) Peak boosts in avidity among participants previously immunized with RZV.
