Biotech firm Valneva works on an inactivated whole-virus vaccine against COVID-19 in Vienna
A biologist at the French-Austrian biotech firm Valneva laughs as she waits in a double door system before entering a laboratory to work on an inactivated whole-virus vaccine against coronavirus disease (COVID-19) in Vienna, Austria, December 16, 2021. REUTERS/Lisi Niesner TPX IMAGES OF THE DAY