Companies can make their employees who are returning to the job get vaccinated against Covid-19.But so far, few companies have decided to move forward, as many are still engaging in internal debates about how to safely restore their offices to operations that resemble what they were before the pandemic. Pressed by some of the nation’s biggest business groups, including the U.S. Chamber of Commerce, the Equal Employment Opportunity Commission said Friday that companies could mandate vaccines as a requirement for coming into the office. The agency had issued a similar note in December. Some companies say they are wary of...