A group of investors are pressing companies including Walmart Inc., McDonald's Corp., and CVS Health Corp. to provide more information about the paid sick leave they provide for their workers, citing their heightened risk of contracting Covid-19.

Letting employees quarantine and recover at home—while receiving pay—will help companies prevent outbreaks and store closures, the group said in a statement on Thursday. The investors, who were organized by the Interfaith Center on Corporate Responsibility (ICCR), said they filed shareholder resolutions at companies asking for details on how they might adopt paid sick leave.

Four out of 10 hourly paid workers don't have paid sick leave, the group said, citing U.S. Department of Labor statistics. This forces many employees to choose between going to work sick and infecting others or losing wages.