Sick Leave (General Information) – U.S. Office of Personnel Management

An employee is entitled to use sick leave if health authorities or a health care provider determine that the employee’s presence on the job would jeopardize the health of others because of exposure to a communicable disease. An employee is also entitled to use sick leave to care for a family member who has been similarly exposed.

https://www.opm.gov/policy-data-oversight/pay-leave/leave-administration/fact-sheets/sick-leave-general-information/