CULVER CITY, Calif.–(BUSINESS WIRE)–ImmunityBio, a privately-held immunotherapy company, today announced its COVID-19 vaccine candidate protected nasal and lung airways of non-human primates against coronavirus (SARS-CoV-2) in a challenge study. The study, sponsored by the Biomedical Advanced Research & Development Authority (BARDA), provides further evidence supporting the company’s use of a second-generation adenoviral vector that induces the immune system to both activate T cells and g