Even as many employees have shifted to remote work, plant workers have continued reporting for duty. RELATED: Sanofi, despite COVID-19, sees early gains from CEO Hudson's strategy revamp As for Sanofi, the company in April reported a first-quarter sales boost from the pandemic. The drugmaker's GSK-partnered COVID-19 vaccine just last week encountered an R&D setback, and the partners are now working to get a phase 2b trial off the ground.