When Dr. Kurt Graham realized the âperilously lowâ vaccination rate at his facility, he implored his co-workers to take a shot. Heâs the medical director at Encompass Health Rehabilitation Hospital of Fredericksburg, which deals with patients recovering from strokes or physical deterioration after long hospital stays. He learned on Monday that only about 42 percent of Encompass staff had been vaccinated, a rate comparable to what heâs heard anecdotally for health care workers at hospitals and nursing homes in the Fredericksburg area. He immediately penned a letter to staff, saying he was reluctant to ask them to step outside their comfort zone, but even more worried about seeing them or patients hospitalized with COVID-19.