SpFN vaccine is a self-assembling SARS-CoV-2 WA-1 recombinant spike ferritin nanoparticle vaccine. It is often co-formulated with Army Liposomal Formulation (ALFQ) adjuvant containing monophosphoryl lipid A and QS-21 (SpFN/ALFQ) and has demonstrated protective efficacy in animal challenge models.
