Whistleblowers and fears of losing funds key to enforcing U.S. vaccine rules

Workplace whistleblowers and a fear of losing federal funds are expected to play vital roles in ensuring compliance with COVID-19 vaccine mandates ordered by President Joe Biden's administration for U.S. businesses, nursing homes and hospitals, according to experts.

Biden announced last Thursday that his administration will enforce the vaccine mandates starting on Jan. 4. The rules apply to employers with at least 100 workers, federal contractors and employees of nursing homes and other healthcare facilities that receive reimbursements under the Medicare and Medicaid government healthcare programs.

On Saturday, a federal appeals court...