Posted in Web Protein-based Novavax coronavirus vaccine simple and a … November 12, 2021 The Novavax vaccine is 90% effective, a trial found, but that was before the delta variant arrived, Nature reports. Related Articles Alameda County mandates vaccines for first responders, with … https://www.mercurynews.com/2021/11/09/novavax-coronavirus-vaccine-simple-and-a-likely-pandemic-game-changer/