FILE- In this Feb. 2, 2021 file photo, Tyson Foods team members receive COVID-19 vaccines from health officials at the Wilkesboro, N.C. facility. Tyson Foods will require all of its U.S. employees to get vaccinated against COVID-19, becoming one of the first major employer of frontline workers to so amid a resurgence of the virus. Tyson, one of the world’s largest food companies, announced Tuesday, Aug. 3, that members of leadership team must be vaccinated by Sept. 24 and the rest of its office workers by Oct. 1. (Melissa Melvin/AP Images for Tyson Foods File)

ALBANY (AP) — The deadline for hospital and nursing home workers in New York state to be vaccinated against COVID-19 arrived Monday with the prospect of severe staff shortages fueled by workers getting suspended or fired for refusing to be inoculated.

With thousands of workers still thought to be holding out, hospital administrators prepared contingency plans that included cutting back on noncritical services and limiting admissions at nursing homes.

Gov. Kathy Hochul said this weekend she was prepared to call in medically trained National Guard members and retirees, or vaccinated workers from outside the state, to fill any gaps. The governor has held firm on the mandate in the face of pleas to delay it and multiple lawsuits challenging its constitutionality.

All health care workers in New York state at hospitals and nursing homes are required to be vaccinated with at least one dose of the COVID-19 vaccine by Monday. Employees who refuse the shots face suspensions and termination.

The rules apply not just to people like doctors and nurses, but also to others who work in health care institutions, like food service workers, administrators and cleaners.

The mandate comes as hospitals are already reeling from staff shortages fueled in part by workers retiring and employees seeking other jobs after 18 months of the pandemic.

Health care workers can apply for a religious exemption, at least for now. A federal judge on Oct. 12 will consider a legal challenge arguing that such exemptions are constitutionally required.

Copyright 2021 The Associated Press.