Register to attend a free NCI webinar. Attendees will learn about a new adjuvanted subunit mucosal Covid-19 vaccine. Study results show that this new vaccine prevents SARS-CoV-2 transmission and infection. Most SARS-CoV-2 vaccines focus on delivering immunization through an intramuscular injection. This new technology combines an initial intramuscular injection with subsequent intranasal boost administration of a novel, molecular adjuvant nanoparticle formulation.