Trinity Health announced Thursday it will require all colleagues, clinical staff, contractors, and those conducting business in its health care facilities be vaccinated against COVID-19.

A healthcare worker at St. Joe's Ann Arbor holds up a sticker that says "I Got Vaccinated" as COVID-19 vaccinations get underway. ANN ARBOR – The first shipment of the Pfizer/BioNTech COVID-19 vaccine arrived at four hospitals within the Mercy Health and Saint Joseph Mercy Health System on Thursday, including St. Joseph Mercy Ann Arbor, St. Joseph Mercy Oakland and Mercy Health Saint Mary’s in Grand Rapids and Mercy Health Muskegon. Mercy Health Muskegon received 1,950 doses while the other three hospitals received 975. All hospitals within Trinity Health Michigan have ultra-cold freezers capable of storing the vaccines. For more information about the COVID-19 vaccine, visit www.stjoeshealth.org/vaccine.