COVID-19 vaccines: From nasal drops to a redesign, what 2023 could have in store

(CBS News) Several vaccine companies say they are expecting breakthroughs as early as this year as they pursue new ways to protect people against SARS-CoV-2, the virus that causes COVID-19. The Food and Drug Administration is set to convene a panel of its outside vaccine advisers later this month to weigh key issues over the future of COVID-19 vaccines, including when and how to greenlight new boosters and changes to which strain the vaccines target.