Texas Health Resources becomes latest company to require COVID vaccine for employees The Arlington-based company's employees, including all providers, students, vendors and contract workers, must be fully vaccinated by Sept. 10. Author: Ryan Osborne, William Joy (WFAA) Published: 12:02 PM CDT July 30, 2021 Updated: 12:02 PM CDT July 30, 2021 ARLINGTON, Texas — Texas Health Resources on Friday became the latest North Texas healthcare system to announce a mandatory COVID-19 vaccine policy for all employees. The Arlington-based company's employees, including all providers, students, vendors and contract workers, must be fully vaccinated by Sept. 10. Barclay Berdan, CEO of Texas Health Resources, said Friday that about 70% of the company's employees are already fully vaccinated.