Vir Biotechnology Inc (NASDAQ:VIR) announced new preclinical data, published to the preprint server bioRxiv, demonstrating the impact of the significant antigenic shift of the new COVID-19 omicron variant (B.1.1.529). 

• A significant reduction in plasma neutralizing activity was observed against omicron in sera from vaccinated and convalescent individuals. 
• Researchers also tested the in vitro neutralizing activity of 44 monoclonal antibodies (mAbs) (eight of which are currently authorized or approved). 
• Data demonstrate that sotrovimab and five other preclinical mAbs, developed by Vir in conjunction with GlaxoSmithKline plc (NYSE: GSK), retained their in vitro neutralizing activity against omicron.
• Related Link: Preclinical Data Shows GSK-Vir COVID-19 Drug Works Against All Omicron Mutations.
• Price Action: VIR stock is trading higher by 14.7% at $52.78, GSK shares are up 0.29% at $42.91 during the market session on the last check Wednesday.