As COVID cases drop in the U.S. and vaccinations increase, many companies are bringing their employees back to office buildings. And lots of those workers are worried: Will shared spaces remain safe as restrictions are lifted and viral variants spread? Can businesses require all employees to be vaccinated? What office and building features best minimize risk? To get answers, Scientific American asked experts in infectious disease, air-flow engineering, and the law to explain the office designs and policies that will most improve coronavirus safety and the ways you can evaluate these factors.

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