Co-immunization with hemagglutinin stem immunogens elicits cross-group neutralizing antibodies and broad protection against influenza A viruses

Syed M. Moin, Jeffrey C. Boyington, Seyhan Boyoglu-Barnum, Rebecca A. Gillespie, Gabriele Cerutti, Crystal Sao‐Fong Cheung, Alberto Cagigi, John R. Gallagher, Joshua Brand, Madhu Prabhakaran, Yaroslav Tsybovsky, Tyler Stephens, Brian E. Fisher, Adrian Creanga, Sila Ataca, Reda Rawi, Kizzmekia S. Corbett, Michelle C. Crank, Gunilla B. Karlsson Hedestam, Jason Gorman, Adrian B. McDermott, Audray K. Harris, Tongqing Zhou, Peter D. Kwong, Lawrence Shapiro, John R. Mascola, Barney S. Graham, Masaru Kanekiyo