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. 2022 Aug 29;76(3):e1168–e1176. doi: 10.1093/cid/ciac683

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© The Author(s) 2022. Published by Oxford University Press on behalf of Infectious Diseases Society of America.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Figure 3. — Forest plot of MFR in geometric mean hemagglutination inhibition (HI) antibody titer (geometric mean titer [GMT]) at 1 month post-vaccination by 2-season vaccination combination. MFR and 99.3% CIs were defined as the geometric mean of the ratio of post-vaccination titer and pre-vaccination titer for each participant. *Applying a Bonferroni correction for multiple comparisons, P <.007 for GMT ratio is statistically significant. Abbreviations: ccIIV, cell culture–based inactivated influenza vaccine (Flucelvax Quadrivalent); CI, confidence interval; MFR, mean fold-rise; IIV, inactivated influenza vaccine (Fluzone Quadrivalent); RIV, recombinant-hemagglutinin influenza vaccine (Flublok Quadrivalent).