Intranasal hemagglutinin protein boosters induce protective mucosal immunity against influenza A viruses in mice - Miyu Moriyama; Gisele Rodrigues; Jiping Wang; Radeesha Jayewickreme; Andrew Hudak; Huiping Dong; Robert J. Homer; Shuangge Ma; Akiko Iwasaki (Proceedings of the National Academy of Sciences, 2025)