How well do current vaccines hold up against new SARS-CoV-2 variants BA.2.86 and FLip?

The study explores the efficacy of three-dose monovalent or bivalent vaccinations in neutralizing newly emerged SARS-CoV-2 variants BA.2.86 and FLip. While BA.2.86 showed lower immune evasion abilities compared to recent XBB variants, it was less effectively neutralized by the monoclonal antibody S309, raising questions about vaccine efficacy against evolving strains.