Dr. Becca Flitter Vaxart Inc., USA

Dr. Becca Flitter is an immunologist and vaccine-development scientist, currently serving as a Director at Vaxart, Inc., where she leads a team focused on oral tablet vaccines. She holds a PhD and MPH in Immunology — she completed her doctoral training at University of Pittsburgh. Over two decades, Dr. Flitter... read morehas developed deep expertise in mucosal immunology, host-pathogen interactions, and vaccine research. Among her recent achievements: she led the development of an oral norovirus vaccine tablet that, in a 2025 phase 1b clinical trial, was shown to be safe and capable of eliciting robust mucosal immunity (serum and mucosal IgA, mucosal homing B/T cell responses) in older adults. Her work, and that of her team at Vaxart, aims to deliver temperature-stable, needle-free vaccines, which could significantly improve accessibility and ease of immunization worldwide.