Pharma giants Sanofi, GSK working on COVID vaccine for 2021

Pharma giants Sanofi and GlaxoSmithKline will join forces to work on a coronavirus vaccine they hope will enter clinical trials this year, potentially making it available in the second half of 2021, the companies said Tuesday. The vaccine will combine a Sanofi-developed antigen, which stimulates the production of germ-killing antibodies,…