Fig. 3From: HAI and NAI titer correlates of inactivated and live attenuated influenza vaccine efficacyVE of the IIV vaccine depends on baseline NAI titer differently among the previously vaccinated and previously unvaccinated. VE-by-Day-0 NAI titer plots are shown for the IIV vaccine in (a) the previously vaccinated vs (b) unvaccinatedBack to article page