Pre-existing immunity to influenza virus hemagglutinin stalk might drive selection for antibody-escape mutant viruses in a human challenge model

Jae-Keun Park, Yongli Xiao, Mitchell D. Ramuta, Luz Angela Rosas, Sharon Fong, Lex Matthews, Ashley Freeman, Monica Gouzoulis, Natalia A. Batchenkova, Xing-Dong Yang, Kelsey Scherler, Li Qi, Susan Reed, Rani Athota, Lindsay Czajkowski, Alison Han, David M. Morens, Kathie‐Anne Walters, Matthew J. Memoli, John C. Kash, Jeffery K. Taubenberger