All St. Joseph Health System employees required to be vaccinated By: Matt Nagy This requirement includes all colleagues, clinical staff, contractors and anyone conducting business inside of Trinity Health facilities. Trinity Health has more than 117,000 employees in 22 states nationwide, including about 3,000 colleagues within the St. Joseph Health System. "We have been called to care in so many new innovative ways throughout the COVID pandemic and this vaccine requirement is another example of how we are creating a safe and compassionate healing environment for our patients and colleagues," said Chad Towner, President/CEO of St. Joseph Health System. Trinity Health has been strongly encouraging workers, nearly 75 percent already vaccinated, to get immunized since December.