Vaccine mandates convert some workers, not all

Businesses that have announced vaccine mandates say some workers who had been on the fence have since gotten inoculated against COVID-19. But many holdouts remain — a likely sign of what is to come once a federal mandate goes into effect. Even before President Joe Biden’s Sept. 9 announcement that companies with more than 100 workers would have to require vaccinations, dozens of companies, including Amtrak, Microsoft, United Airlines and Disney, issued ultimatums to most workers.