Tevogen Bio Confirms Ongoing Efficacy of TVGN 489, Its Investigational Allogeneic Off-the-Shelf Immunotherapy, Against Dominant FLiRT Strains of SARS-CoV-2 Tevogen Bio Confirms Ongoing Efficacy of TVGN 489, Its Investigational Allogeneic Off-the-Shelf Immunotherapy, Against Dominant FLiRT Strains of SARS-CoV-2