FILE - In this Dec. 15, 2020, file photo, a droplet falls from a syringe after a health care worker was injected with the Pfizer-BioNTech COVID-19 vaccine at a hospital in Providence, R.I. Genesis Healthcare, the nation’s largest nursing home operator which has 70,000 employees at nearly 400 nursing homes and senior communities, told its workers this week they will have to get COVID-19 vaccinations to keep their jobs — a possible shift in an industry that has largely rejected compulsory measures for fear of triggering an employee exodus that could worsen already dangerous staffing shortages. (AP Photo/David Goldman, File)