The largest health care strike in Oregon history began early Friday at Providence across the state, as roughly 5,000 frontline health professionals walked off the job. The strike — which includes mostly nurses and 150 doctors and advanced practitioners in addition to thousands of nurses — spans Providence’s eight hospitals in the state.

Nearly 5,000 nurses, doctors and other health workers at Providence Health & Services hospitals and clinics in Oregon are walking off their jobs beginning 6 a.m. Friday. It is set to be the largest strike by health workers in the state’s history — and the first involving a union representing doctors.