Fig. 2From: The impact of circadian rhythms on the immune response to influenza vaccination in middle-aged and older adults (IMPROVE): a randomised controlled trialAntibody titers pre-vaccination and post-vaccination. A The overall geometric mean (95% CI) for antibody titers of A/H1N1 strain. B The overall geometric mean (95% CI) for antibody titers of A/H3N2 strain. C The overall geometric mean (95% CI) for antibody titers of B/Victoria strainBack to article page