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. Author manuscript; available in PMC: 2017 Apr 7.
Published in final edited form as: Vaccine. 2015 Dec 22;34(16):1945–1955. doi: 10.1016/j.vaccine.2015.12.038

Figure 3.

Figure 3

Strain-specific neutralizing Ab titers. Serial dilutions of plasma sample were tested for neutralizing activity against H1N1 (A), H3N2 (B), and B (C) strains. (D) Fold changes of neutralizing titers (D14 versus D0). Illustrated here are the median dilution indices providing 50% protection (IC50) in controls (circles) and patients (stars).