GSK plc (LSE/NYSE:GSK) and Sanofi (EPA:SAN) have announced that their adjuvanted bivalent vaccine candidate had 72% efficacy against omicron in adults in stage 2 of a Phase 3 study. For those with SARS-CoV-2 seropositivity, the vaccine was 93.2% effective against omicron. The vaccine is based on the original D614 virus and the beta (B.1.351) strain.…