PORTLAND, Ore. (AP) — Providence Health & Services has shut down a unit of its Northeast Portland hospital after a COVID-19 outbreak that has led to 49 staffers and patients contracting the virus.

The Oregonian/OregonLive reports the outbreak is the largest to date at a metro-area hospital around Portland and is believed to have started Dec. 20. Officials said it was centered in a unit that treats patients who are stable but in need of ongoing, intense care, like stroke and traumatic brain injury victims.

Providence spokesman Gary Walker confirmed the outbreak and said 36 hospital workers and 13 patients contracted the virus. None of them have died and most were asymptomatic or were only mildly ill, Walker said.

Registered nurse Jeremy Shipley worked in the unit and contracted the virus. He’s recovering but it’s been devastating, he said, to catch the coronavirus despite his meticulous attention to safety.

“I’ve been a champion of personal protection and caution,” he said. “I feel overwhelming shame that I was the one on our staff who went down.”

Several Oregon hospitals have had virus outbreaks. A total of 158 staff and patients have contracted COVID-19 at Salem Hospital since June. Nearly 90 have been infected at Good Shepherd Hospital in Hermiston since summer. Mercy Medical Center in Roseburg has reported 61 COVID cases sincesummer.

PeaceHealth Southwest Washington Medical Center in Vancouver, Washington has reported several outbreaks with the most recent infecting 29 people starting in late December.