As coronavirus cases rise again in cities throughout the United States and fear over the omicron variant grows, more companies are requiring or planning to mandate vaccines for their employees.

A new report from consulting firm Willis Towers Watson has found that 57% of U.S. employers now require or are planning to mandate vaccines for their workers in the coming months. Thirty-two percent of those employers, however, said they will require vaccinations only if the federal vaccine mandate takes effect.