Antibody titres elicited by the 2018 seasonal inactivated influenza vaccine decline by 3 months post-vaccination but persist for at least 6 months.

Francesca L Mordant Olivia H PriceRajeev RudrarajuMonica A SlavinCaroline MarshallLeon J WorthHeidi PeckIan G BarrSheena G SullivanKanta Subbarao

Published in: Influenza and other respiratory viruses (2022)

These results suggest subtype-specific antibody-mediated protection persists for at least 6 months, which corresponds to the duration of a typical influenza season.

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