Coinspeaker Pharma Giants Sanofi and GlaxoSmithKline Join Hands to Develop Coronavirus VaccineWithin the partnership, Sanofi will contribute its S-protein COVID-19 antigen based on recombinant DNA technology, while GlaxoSmithKline will implement its proven pandemic adjuvant technology.Pharma Giants Sanofi and GlaxoSmithKline Join Hands to Develop Coronavirus Vaccine