Immunogenicity of a quadrivalent Ann Arbor strain live attenuated influenza vaccine delivered using a blow‐fill‐seal device in adults: a randomized, active‐controlled study<b>*</b>

Abstract

Immune responses to vaccination with Ann Arbor strain Q/LAIV-BFS were non-inferior to those with T/LAIV. Q/LAIV may confer broader protection against seasonal influenza B by targeting both major influenza B lineages.