A chimeric hemagglutinin-based universal influenza virus vaccine approach induces broad and long-lasting immunity in a randomized, placebo-controlled phase I trial - Raffael Nachbagauer; Jodi Feser; Abdollah Naficy; David I. Bernstein; Jeffrey T. Guptill; Emmanuel B. Walter; Franceso Berlanda-Scorza; Daniel Stadlbauer; Patrick C. Wilson; Teresa Aydillo; Mohammad Amin Behzadi; Disha Bhavsar; et al. (2020)